FORM OF SUBORDINATED CONVERTIBLE
NOTE


 


NEITHER THE ISSUANCE AND SALE OF THE
SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE CONVERTIBLE HAVE BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE,
SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL TO THE HOLDER (IF REQUESTED BY THE COMPANY), IN A FORM REASONABLY ACCEPTABLE
TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD OR ELIGIBLE TO BE SOLD PURSUANT TO RULE 144
OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN
ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. ANY TRANSFEREE OF THIS NOTE SHOULD CAREFULLY REVIEW THE
TERMS OF THIS NOTE, INCLUDING SECTION 9(a) HEREOF. 


 


THIS INSTRUMENT AND THE RIGHTS AND OBLIGATIONS
EVIDENCED HEREBY ARE SUBORDINATE IN THE MANNER AND TO THE EXTENT SET FORTH IN THAT CERTAIN SUBORDINATION AND INTERCREDITOR AGREEMENT
(THE “SUBORDINATION AGREEMENT”) DATED AS OF MAY 8, 2013 BY AND AMONG THE HOLDERS OF NOTES (AS SUCH TERM IS DEFINED
IN THE SUBORDINATION AGREEMENT) (COLLECTIVELY, THE “SENIOR CREDITORS”) ISSUED BY THE COMPANY (AS DEFINED BELOW)
PURSUANT TO THAT CERTAIN SUBORDINATED SECURITIES PURCHASE AGREEMENT DATED AS OF MAY 7, 2013, BY AND AMONG THE COMPANY AND THE SENIOR
CREDITORS FROM TIME TO TIME PARTY THERETO (AS THE SAME MAY BE AMENDED, SUPPLEMENTED OR OTHERWISE MODIFIED FROM TIME TO TIME SUBJECT
TO THE TERMS OF THE SUBORDINATION AGREEMENT, THE “SUBORDINATED SECURITIES PURCHASE AGREEMENT”), THE HOLDERS
OF SUBORDINATED NOTES (AS SUCH TERM IS DEFINED IN THE SUBORDINATION AGREEMENT) ISSUED BY THE COMPANY (COLLECTIVELY, THE “SUBORDINATED
CREDITORS”) ISSUED PURSUANT TO THAT CERTAIN SUBORDINATED SECURITIES PURCHASE AGREEMENT DATED AS OF MAY 7, 2013 AMONG
THE COMPANY AND THE SUBORDINATED CREDITORS FROM TIME TO TIME PARTY THERETO (AS THE SAME MAY BE AMENDED, SUPPLEMENTED OR OTHERWISE
MODIFIED FROM TIME TO TIME SUBJECT TO THE TERMS OF THE SUBORDINATION AGREEMENT, THE “SUBORDINATED SUBORDINATED SECURITIES
PURCHASE AGREEMENT”), AND THE COMPANY TO THE INDEBTEDNESS (INCLUDING INTEREST) OWED BY THE COMPANY TO THE SENIOR CREDITORS
UNDER THE NOTES AND TO INDEBTEDNESS REFINANCING THE INDEBTEDNESS ORIGINALLY ISSUED IN CONNECTION THEREWITH, SUBJECT TO THE TERMS
OF THE SUBORDINATION AGREEMENT; AND EACH HOLDER OF THIS INSTRUMENT, BY ITS ACCEPTANCE HEREOF, IRREVOCABLY AGREES TO BE BOUND BY
THE PROVISIONS OF THE SUBORDINATION AGREEMENT.


 




    	 



    	 



    




 


Axion
Power International, Inc.


 


Subordinated
Convertible Note


 


	Issuance Date:  May __, 2013	Original Principal Amount: U.S. $_______


 


FOR VALUE RECEIVED,
Axion Power International, Inc., a Delaware corporation (the “Company”), hereby promises to pay to the order
of _________ or its registered assigns (“Holder”) the amount set out above as the Original Principal Amount
(as reduced pursuant to the terms hereof pursuant to redemption, conversion or otherwise, the “Principal”) when
due, whether upon the Maturity Date, or upon acceleration, redemption or otherwise (in each case in accordance with the terms hereof)
and to pay interest (“Interest”) on any outstanding Principal at the applicable Interest Rate (as defined below)
from the date set out above as the Issuance Date (the “Issuance Date”) until the same becomes due and
payable, whether upon the Maturity Date or upon acceleration, conversion, redemption or otherwise (in each case in accordance with
the terms hereof). This Subordinate Convertible Note (including all Subordinate Convertible Notes issued in exchange, transfer
or replacement hereof, this “Note”) is one of an issue of Subordinate Convertible Notes issued pursuant to the
Subordinated Securities Purchase Agreement (as defined below) on the Closing Date (as defined below) (collectively, the “Notes”,
and such other Subordinate Convertible Notes, the “Other Notes”). Certain capitalized terms used herein
are defined in Section 19. Reference is made to those certain Senior Convertible Notes being issued pursuant to the Securities
Purchase Agreement (as such may be amended, or modified, from time to time, the “Senior Notes”). 


 


1.          PAYMENTS
OF PRINCIPAL; OPTIONAL REDEMPTION. On the Maturity Date, at the Holder’s option, the Company shall pay to the Holder
an amount in cash or Common Stock representing all outstanding Principal, accrued and unpaid Interest. Such amount of outstanding
Principal, accrued and unpaid Interest being paid in Common Stock is referred to herein as the “Conversion Amount”.
Other than as specifically permitted by this Note, the Company may not prepay any portion of the outstanding Principal, accrued
and unpaid Interest. At any time after the Eligibility Date (as defined below), solely to the extent that at all times during the
applicable Optional Redemption Period (as defined below) the Senior Conditions (as defined below) are satisfied, the Holder may
at its option, by delivery of written notice to the Company (the date of such notice, the “Optional Redemption Notice
Date”), redeem all or any part of the outstanding Principal, accrued and unpaid Interest of this Note for a purchase
price equal to the amount of such outstanding Principal, accrued and unpaid Interest of this Note set forth in such notice to be
redeemed (each, an “Optional Redemption”). Each Optional Redemption shall be consummated by the Company on the
fifth Trading Day after the Optional Redemption Notice Date (or such other date as mutually agreed by the Holder and the Company,
the “Optional Redemption Date”); provided, that no Optional Redemption shall occur to the extent the Company
fails to satisfy any of the Senior Conditions during the period commencing and including the Optional Redemption Notice Date and
ending and including the Optional Redemption Date (the “Optional Redemption Period”).


 




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2.          INTEREST;
INTEREST RATE. Interest on this Note shall commence accruing on the Issuance Date and shall be computed on the basis of a 360-day
year and twelve 30-day months and shall be payable at the same times and under the same terms upon which payments of principal
are permitted hereunder (each, an “Interest Date”) and shall compound each month and shall be payable
upon redemption or at maturity of this Note. From and after the occurrence and during the continuance of any Event of Default,
the Interest Rate shall automatically be increased to eighteen percent (18.0%) per annum. In the event that such Event of Default
is subsequently cured, the adjustment referred to in the preceding sentence shall cease to be effective as of the calendar day
immediately following the date of such cure; provided that the Interest as calculated and unpaid at such increased rate during
the continuance of such Event of Default shall continue to apply to the extent relating to the days after the occurrence of such
Event of Default through and including the date of such cure of such Event of Default.


 


3.          CONVERSION
OF NOTES. This Note shall be convertible into validly issued, fully paid and non-assessable shares of Common Stock of the Company
on the Maturity Date as set forth in paragraph 1. At any time after the later
of (x) the initial date at least $[6] million in aggregate principal amount of the Notes no longer remains outstanding and (y)
the initial date at least 50% of the aggregate principal amount of the Notes initially issued to Capital Ventures International
no longer remains outstanding (the “Eligibility Date”), this Note shall also be convertible into validly
issued, fully paid and non-assessable shares of Common Stock of the Company; provided, that no
Event of Default (as defined in the Senior Notes) or Equity Conditions Failure (as defined in the Senior Notes), in either case,
has occurred and is continuing (the “Senior Conditions”). The Company shall not issue any fraction of
a share of Common Stock upon any conversion. If the issuance would result in the issuance of a fraction of a share of Common Stock,
the Company shall round such fraction of a share of Common Stock up to the nearest whole share. The Company shall pay any and all
transfer, stamp, issuance and similar taxes that may be payable with respect to the issuance and delivery of Common Stock upon
conversion of any Conversion Amount.


 


(a)          Conversion
Rate. The number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to Section 3(a) shall
be determined by dividing (x) such Conversion Amount by (y) the Conversion Price (the “Conversion Rate”).


 


(i)          
“Conversion Price” means, as of any Conversion Date or other date of determination, $0.264 subject to adjustment
as provided herein.


 


(b)          Mechanics
of Conversion. To convert any Conversion Amount into shares of Common Stock on the Maturity Date or on any date after the Eligibility
Date (each, a “Conversion Date”), the Holder shall deliver (whether via facsimile or otherwise), for receipt
on or prior to 11:59 p.m., New York time, on such date, a copy of an executed notice of conversion in the form attached hereto
as Exhibit I (the “Conversion Notice”) to the Company.


 


4.          RIGHTS
UPON EVENT OF DEFAULT.


 


(a)          Event
of Default. Each of the following events shall constitute an “Event of Default”:


 




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(i)          the
suspension (or threatened suspension) from trading or the failure (or threatened failure) of the Common Stock to be trading or
listed (as applicable) on an Eligible Market for a period of five (5) consecutive Business Days or for more than an aggregate of
ten (10) Business Days in any 365-day period;


 


(ii)         the
Company’s or any Subsidiary’s (as defined in the Subordinated Securities Purchase Agreement) failure to pay to the
Holder any amount of Principal, Interestor other amounts when and as due under this Note (including, without limitation, the Company’s
or any Subsidiary’s failure to pay any redemption payments or amounts hereunder) or any other Transaction Document (as defined
in the Subordinated Securities Purchase Agreement) or any other agreement, document, certificate or other instrument delivered
in connection with the transactions contemplated hereby and thereby, except, in the case of a failure to pay Interest when and
as due, in which case only if such failure remains uncured for a period of at least five (5) days;


 


(iii)        bankruptcy,
insolvency, reorganization or liquidation proceedings or other proceedings for the relief of debtors shall be instituted by or
against the Company or any Subsidiary and, if instituted against the Company or any Subsidiary by a third party, shall not be dismissed
within forty-five (45) days of their initiation;


 


(iv)        the
commencement by the Company or any Subsidiary of a voluntary case or proceeding under any applicable federal, state or foreign
bankruptcy, insolvency, reorganization or other similar law or of any other case or proceeding to be adjudicated a bankrupt or
insolvent, or the consent by it to the entry of a decree, order, judgment or other similar document in respect of the Company or
any Subsidiary in an involuntary case or proceeding under any applicable federal, state or foreign bankruptcy, insolvency, reorganization
or other similar law or to the commencement of any bankruptcy or insolvency case or proceeding against it, or the filing by it
of a petition or answer or consent seeking reorganization or relief under any applicable federal, state or foreign law, or the
consent by it to the filing of such petition or to the appointment of or taking possession by a custodian, receiver, liquidator,
assignee, trustee, sequestrator or other similar official of the Company or any Subsidiary or of any substantial part of its property,
or the making by it of an assignment for the benefit of creditors, or the execution of a composition of debts, or the occurrence
of any other similar federal, state or foreign proceeding, or the admission by it in writing of its inability to pay its debts
generally as they become due, the taking of corporate action by the Company or any Subsidiary in furtherance of any such action
or the taking of any action by any Person to commence a Uniform Commercial Code foreclosure sale or any other similar action under
federal, state or foreign law;


 




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(v)         the
entry by a court of (i) a decree, order, judgment or other similar document in respect of the Company or any Subsidiary of a voluntary
or involuntary case or proceeding under any applicable federal, state or foreign bankruptcy, insolvency, reorganization or other
similar law or (ii) a decree, order, judgment or other similar document adjudging the Company or any Subsidiary as bankrupt or
insolvent, or approving as properly filed a petition seeking liquidation, reorganization, arrangement, adjustment or composition
of or in respect of the Company or any Subsidiary under any applicable federal, state or foreign law or (iii) a decree, order,
judgment or other similar document appointing a custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar
official of the Company or any Subsidiary or of any substantial part of its property, or ordering the winding up or liquidation
of its affairs, and the continuance of any such decree, order, judgment or other similar document or any such other decree, order,
judgment or other similar document unstayed and in effect for a period of forty-five (45) consecutive days;


 


(vi)        a
final judgment or judgments for the payment of money aggregating in excess of $250,000 are rendered against the Company and/or
any of its Subsidiaries and which judgments are not, within forty-five (45) days after the entry thereof, bonded, discharged or
stayed pending appeal, or are not discharged within thirty (30) days after the expiration of such stay; provided, however, any
judgment which is covered by insurance or an indemnity from a credit worthy party shall not be included in calculating the $250,000
amount set forth above so long as the Company provides the Holder a written statement from such insurer or indemnity provider (which
written statement shall be reasonably satisfactory to the Holder) to the effect that such judgment is covered by insurance or an
indemnity and the Company or such Subsidiary (as the case may be) will receive the proceeds of such insurance or indemnity within
forty-five (45) days of the issuance of such judgment;


 


(vii)       the
Company and/or any Subsidiary, individually or in the aggregate, either (i) fails to pay, when due, or within any applicable grace
period, any payment with respect to any Indebtedness in excess of $250,000 due to any third party (other than, with respect to
unsecured Indebtedness only, payments contested by the Company and/or such Subsidiary (as the case may be) in good faith by proper
proceedings and with respect to which adequate reserves have been set aside for the payment thereof in accordance with GAAP) or
is otherwise in breach or violation of any agreement for monies owed or owing in an amount in excess of $250,000, which breach
or violation permits the other party thereto to declare a default or otherwise accelerate amounts due thereunder, or (ii) suffer
to exist any other circumstance or event that would, with or without the passage of time or the giving of notice, result in a default
or event of default under any agreement binding the Company or any Subsidiary, which default or event of default would or is likely
to have a material adverse effect on the business, assets, operations (including results thereof), liabilities, properties, condition
(including financial condition) or prospects of the Company or any of its Subsidiaries, individually or in the aggregate;


 


(viii)      any
provision of the Note shall at any time for any reason (other than pursuant to the express terms thereof) cease to be valid and
binding on or enforceable against the parties thereto, or the validity or enforceability thereof shall be contested by any party
thereto, or a proceeding shall be commenced by the Company or any Subsidiary or any governmental authority having jurisdiction
over any of them, seeking to establish the invalidity or unenforceability thereof, or the Company or any Subsidiary shall deny
in writing that it has any liability or obligation purported to be created under any Transaction Document; or


 




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(ix)         any
Event of Default (as defined in the Other Notes) occurs with respect to any other Notes.


 


(b)          Notice
of an Event of Default; Redemption Right. Upon the occurrence of an Event of Default with respect to this Note or any Other
Note, the Company shall within one (1) Business Day deliver written notice thereof via facsimile and overnight courier (with next
day delivery specified) (an “Event of Default Notice”) to the Holder. At any time after the earlier of the Holder’s
receipt of an Event of Default Notice and the Holder becoming aware of an Event of Default, so long as no Senior Notes remain outstanding,
the Holder may require the Company to redeem (regardless of whether such Event of Default has been cured) all or any portion of
this Note by delivering written notice thereof (the “Event of Default Redemption Notice”) to the Company, which
Event of Default Redemption Notice shall indicate the portion of this Note the Holder is electing to redeem. Each portion of this
Note subject to redemption by the Company pursuant to this Section 4(b) shall be redeemed by the Company at a price equal to the
greater of (i) the Conversion Amount to be redeemed and (ii) the product of (X) the Conversion Rate with respect to the Conversion
Amount in effect at such time as the Holder delivers an Event of Default Redemption Notice multiplied by (Y) the greatest Closing
Sale Price of the Common Stock on any Business Day during the period commencing on the date immediately preceding such Event of
Default and ending on the date the Company makes the entire payment required to be made under this Section 4(b) (the “Event
of Default Redemption Price”). Any redemption pursuant to this Section 4(b) shall occur on the fifth (5th)
Trading Day after the date of such Event of Default Redemption Notice (or such other date as agreed upon by the Holder and the
Company). To the extent redemptions required by this Section 4(b) are deemed or determined by a court of competent jurisdiction
to be prepayments of this Note by the Company, such redemptions shall be deemed to be voluntary prepayments. Notwithstanding anything
to the contrary in this Section 4, until the Event of Default Redemption Price is paid in full, the Conversion Amount submitted
for redemption under this Section 4(b) may be converted, in whole or in part, by the Holder into Common Stock pursuant to the terms
of this Note.


 


5.          Adjustment
of Conversion Price upon Subdivision or Combination of Common Stock. If the Company at any time on or after the Subscription
Date subdivides (by any stock split, stock dividend, stock combination, recapitalization or other similar transaction) one or more
classes of its outstanding shares of Common Stock into a greater number of shares, the Conversion Price in effect immediately prior
to such subdivision will be proportionately reduced. If the Company at any time on or after the Subscription Date combines (by
any stock split, stock dividend, stock combination, recapitalization or other similar transaction) one or more classes of its outstanding
shares of Common Stock into a smaller number of shares, the Conversion Price in effect immediately prior to such combination will
be proportionately increased. Any adjustment pursuant to this Section 5 shall become effective immediately after the effective
date of such subdivision or combination. If any event requiring an adjustment under this Section 5 occurs during the period that
a Conversion Price is calculated hereunder, then the calculation of such Conversion Price shall be adjusted appropriately to reflect
such event.


 




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6.          VOTING
RIGHTS. The Holder shall have no voting rights as the holder of this Note, except as required by law (including, without limitation,
the Delaware Business Corporation Act) and as expressly provided in this Note.


 


7.          AMENDING
THE TERMS OF THIS NOTE. The prior written consent of the Holder shall be required for any change or amendment to this Note.


 


8.          TRANSFER.
This Note and any shares of Common Stock issued upon conversion of this Note may be offered, sold, assigned or transferred by the
Holder without the consent of the Company.


 


9.          REISSUANCE
OF THIS NOTE.


 


(a)          Transfer.
If this Note is to be transferred, the Holder shall surrender this Note to the Company, whereupon the Company will forthwith issue
and deliver upon the order of the Holder a new Note, registered as the Holder may request, representing the outstanding Principal
being transferred by the Holder and, if less than the entire outstanding Principal is being transferred, a new Note to the Holder
representing the outstanding Principal not being transferred. The Holder and any assignee, by acceptance of this Note, acknowledge
and agree that, following conversion or redemption of any portion of this Note, the outstanding Principal represented by this Note
may be less than the Principal stated on the face of this Note.


 


(b)          Lost,
Stolen or Mutilated Note. Upon receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft,
destruction or mutilation of this Note (as to which a written certification and the indemnification contemplated below shall suffice
as such evidence), and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company
in customary and reasonable form and, in the case of mutilation, upon surrender and cancellation of this Note, the Company shall
execute and deliver to the Holder a new Note (in accordance with Section 9(d)) representing the outstanding Principal.


 


(c)          Note
Exchangeable for Different Denominations. This Note is exchangeable, upon the surrender hereof by the Holder at the principal
office of the Company, for a new Note or Notes (in accordance with (d) below and in principal amounts of at least $1,000) representing
in the aggregate the outstanding Principal of this Note, and each such new Note will represent such portion of such outstanding
Principal as is designated by the Holder at the time of such surrender.


 


(d)          Issuance
of New Notes. Whenever the Company is required to issue a new Note pursuant to the terms of this Note, such new Note (i) shall
be of like tenor with this Note, (ii) shall represent, as indicated on the face of such new Note, the Principal remaining outstanding
(or in the case of a new Note being issued pursuant to Section 9(a) or Section 9(c), the Principal designated by the Holder which,
when added to the principal represented by the other new Notes issued in connection with such issuance, does not exceed the Principal
remaining outstanding under this Note immediately prior to such issuance of new Notes), (iii) shall have an issuance date, as indicated
on the face of such new Note, which is the same as the Issuance Date of this Note, (iv) shall have the same rights and conditions
as this Note, and (v) shall represent accrued and unpaid Interest on the Principal and Interest of this Note, from the Issuance
Date.


 




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10.         REMEDIES,
CHARACTERIZATIONS, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Note shall be cumulative
and in addition to all other remedies available under this Note and any of the other Transaction Documents at law or in equity
(including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the Holder’s
right to pursue actual and consequential damages for any failure by the Company to comply with the terms of this Note. The Company
covenants to the Holder that there shall be no characterization concerning this instrument other than as expressly provided herein.
Amounts set forth or provided for herein with respect to payments, conversion and the like (and the computation thereof) shall
be the amounts to be received by the Holder and shall not, except as expressly provided herein, be subject to any other obligation
of the Company (or the performance thereof). The Company acknowledges that a breach by it of its obligations hereunder will cause
irreparable harm to the Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that,
in the event of any such breach or threatened breach, the Holder shall be entitled, in addition to all other available remedies,
to an injunction restraining any such breach or any such threatened breach, without the necessity of showing economic loss and
without any bond or other security being required. The Company shall provide all information and documentation to the Holder that
is requested by the Holder to enable the Holder to confirm the Company’s compliance with the terms and conditions of this
Note (including, without limitation, compliance with Section 5).


 


11.         PAYMENT
OF COLLECTION, ENFORCEMENT AND OTHER COSTS. If (a) this Note is placed in the hands of an attorney for collection or enforcement
or is collected or enforced through any legal proceeding or the Holder otherwise takes action to collect amounts due under this
Note or to enforce the provisions of this Note or (b) there occurs any bankruptcy, reorganization, receivership of the Company
or other proceedings affecting Company creditors’ rights and involving a claim under this Note, then the Company shall pay
the costs incurred by the Holder for such collection, enforcement or action or in connection with such bankruptcy, reorganization,
receivership or other proceeding, including, without limitation, attorneys’ fees and disbursements. The Company expressly
acknowledges and agrees that no amounts due under this Note shall be affected, or limited, by the fact that the purchase price
paid for this Note was less than the original Principal amount hereof.


 


12.         CONSTRUCTION;
HEADINGS. This Note shall be deemed to be jointly drafted by the Company and the Holder and shall not be construed against
any Person as the drafter hereof. The headings of this Note are for convenience of reference and shall not form part of, or affect
the interpretation of, this Note. Terms used in this Note but defined in the other Transaction Documents shall have the meanings
ascribed to such terms on the Closing Date in such other Transaction Documents unless otherwise consented to in writing by the
Holder.


 




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13.         FAILURE
OR INDULGENCE NOT WAIVER. No failure or delay on the part of the Holder in the exercise of any power, right or privilege hereunder
shall operate as a waiver thereof, nor shall any single or partial exercise of any such power, right or privilege preclude other
or further exercise thereof or of any other right, power or privilege. No waiver shall be effective unless it is in writing and
signed by an authorized representative of the waiving party.


 


14.         NOTICES;
CURRENCY; PAYMENTS.


 


(a)          Notices.
Whenever notice is required to be given under this Note, unless otherwise provided herein, such notice shall be given in accordance
with the Subordinated Securities Purchase Agreement. The Company shall provide the Holder with prompt written notice of all actions
taken pursuant to this Note, including in reasonable detail a description of such action and the reason therefore. Without limiting
the generality of the foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the
Conversion Price, setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at least fifteen
(15) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution
upon the Common Stock, (B) with respect to any grant, issuances, or sales of any Options, convertible securities or rights to purchase
stock, warrants, securities or other property to holders of shares of Common Stock or (C) for determining rights to vote with respect
to any Fundamental Transaction (as defined in the Senior Notes), dissolution or liquidation, provided in each case that such information
shall be made known to the public prior to or in conjunction with such notice being provided to the Holder.


 


(a)          Currency.
All dollar amounts referred to in this Note are in United States Dollars (“U.S. Dollars”), and all amounts owing
under this Note shall be paid in U.S. Dollars. All amounts denominated in other currencies (if any) shall be converted into the
U.S. Dollar equivalent amount in accordance with the Exchange Rate on the date of calculation. “Exchange Rate”
means, in relation to any amount of currency to be converted into U.S. Dollars pursuant to this Note, the U.S. Dollar exchange
rate as published in the Wall Street Journal on the relevant date of calculation (it being understood and agreed that where an
amount is calculated with reference to, or over, a period of time, the date of calculation shall be the final date of such period
of time).


 


(b)          Payments.
Whenever any payment of cash is to be made by the Company to any Person pursuant to this Note, unless otherwise expressly set forth
herein, such payment shall be made in lawful money of the United States of America by a certified check drawn on the account of
the Company and sent via overnight courier service to such Person at such address as previously provided to the Company in writing
(which address, in the case of each of the Buyers, shall initially be as set forth on the Schedule of Buyers attached to the Subordinated
Securities Purchase Agreement), provided that the Holder may elect to receive a payment of cash via wire transfer of immediately
available funds by providing the Company with prior written notice setting out such request and the Holder’s wire transfer
instructions. Whenever any amount expressed to be due by the terms of this Note is due on any day which is not a Business Day,
the same shall instead be due on the next succeeding day which is a Business Day.


 




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15.         CANCELLATION.
After all Principal, accrued Interest and other amounts at any time owed on this Note have been paid in full, this Note shall automatically
be deemed canceled, shall be surrendered to the Company for cancellation and shall not be reissued.


 


16.         WAIVER
OF NOTICE. To the extent permitted by law, the Company hereby irrevocably waives demand, notice, presentment, protest and all
other demands and notices in connection with the delivery, acceptance, performance, default or enforcement of this Note and the
Subordinated Securities Purchase Agreement.


 


17.         GOVERNING
LAW. This Note shall be construed and enforced in accordance with, and all questions concerning the construction, validity,
interpretation and performance of this Note shall be governed by, the internal laws of the State of New York, without giving effect
to any choice of law or conflict of law provision or rule (whether of the State of New York or any other jurisdictions) that would
cause the application of the laws of any jurisdictions other than the State of New York. The Company hereby irrevocably submits
to the exclusive jurisdiction of the state and federal courts sitting in The City of New York, Borough of Manhattan, for the adjudication
of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby
irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to
the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue
of such suit, action or proceeding is improper. Nothing contained herein shall be deemed to limit in any way any right to serve
process in any manner permitted by law. In the event that any provision of this Note is invalid or unenforceable under any applicable
statute or rule of law, then such provision shall be deemed inoperative to the extent that it may conflict therewith and shall
be deemed modified to conform with such statute or rule of law. Any such provision which may prove invalid or unenforceable under
any law shall not affect the validity or enforceability of any other provision of this Note. Nothing contained herein shall be
deemed or operate to preclude the Holder from bringing suit or taking other legal action against the Company in any other jurisdiction
to collect on the Company’s obligations to the Holder, to realize on any collateral or any other security for such obligations,
or to enforce a judgment or other court ruling in favor of the Holder. THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY
HAVE TO, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING
OUT OF THIS NOTE OR ANY TRANSACTION CONTEMPLATED HEREBY.


 


18.         MAXIMUM
PAYMENTS. Nothing contained herein shall be deemed to establish or require the payment of a rate of interest or other charges
in excess of the maximum permitted by applicable law. In the event that the rate of interest required to be paid or other charges
hereunder exceed the maximum permitted by such law, any payments in excess of such maximum shall be credited against amounts owed
by the Company to the Holder and thus refunded to the Company.


 


19.         CERTAIN
DEFINITIONS. For purposes of this Note, the following terms shall have the following meanings:


 


(a)          
“Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City
of New York are authorized or required by law to remain closed.


 




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(b)          
“Closing Date” shall mean the date which is the date the Company initially issued Notes pursuant to the terms
of the Subordinated Securities Purchase Agreement.


 


(c)          “Common
Stock” means (i) the Company’s shares of common stock, $0.0001 par value per share, and (ii) any capital stock
into which such common stock shall have been changed or any share capital resulting from a reclassification of such common stock.


 


(d)          
“GAAP” means United States generally accepted accounting principles, consistently applied.


 


(e)          “Interest
Rate” means eight percent (8%) per annum, as may be adjusted from time to time in accordance with Section 2.


 


(f)          “Maturity
Date” shall mean the ninety-first calendar day after the Maturity Date (as defined in the Senior Notes).


 


(g)          “Options”
means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities.


 


(h)          “Person”
means an individual, a limited liability company, a partnership, a joint venture, a corporation, a trust, an unincorporated organization,
any other entity or a government or any department or agency thereof.


 


(i)          “SEC”
means the United States Securities and Exchange Commission or the successor thereto.


 


(j)          
“Subordinated Securities Purchase Agreement” means that certain securities purchase agreement, dated as of the
Subscription Date, by and among the Company and the initial holders of the Notes pursuant to which the Company issued the Notes,
as may be amended from time to time.


 


(k)          
“Subscription Date” means May 8, 2013.


 


20.         
DISCLOSURE. Upon receipt or delivery by the Company of any notice in accordance with the terms of this Note, unless the
Company has in good faith determined that the matters relating to such notice do not constitute material, non-public information
relating to the Company or any of its Subsidiaries, the Company shall within one (1) Business Day after any such receipt or delivery
publicly disclose such material, non-public information on a Current Report on Form 8-K or otherwise. In the event that the Company
believes that a notice contains material, non-public information relating to the Company or any of its Subsidiaries, the Company
so shall indicate to such Holder contemporaneously with delivery of such notice, and in the absence of any such indication, the
Holder shall be allowed to presume that all matters relating to such notice do not constitute material, non-public information
relating to the Company or its Subsidiaries.


 


[signature page follows]


 




    	11



    	 



    

 


IN WITNESS WHEREOF,
the Company has caused this Note to be duly executed as of the Issuance Date set out above. 


 


	 	Axion Power International, Inc.
	 	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:


 


Subordinated Convertible Note - Signature
Page


 




    	 



    	 



    

 


EXHIBIT
I



Axion Power International, Inc.

CONVERSION NOTICE


 


Reference is made to
the Convertible Note (the “Note”) issued to the undersigned by Axion Power International, Inc., a Delaware corporation
(the “Company”). In accordance with and pursuant to the Note, the undersigned hereby elects to convert the Conversion
Amount (as defined in the Note) of the Note indicated below into shares of Common Stock, $0.0001 par value per share (the “Common
Stock”), of the Company, as of the date specified below. Capitalized terms not defined herein shall have the meaning
as set forth in the Note.


 





	Date of Conversion:	 


 


	Aggregate Principal to be converted:	 


 


	Aggregate accrued and unpaid Interest with respect to such portion of the Aggregate Principal and such Aggregate Interest to be converted:	 


 


	AGGREGATE CONVERSION AMOUNT

  TO BE CONVERTED:	 


 


	Please confirm the following information:


 


	Conversion Price:	 


 


	Number of shares of Common Stock to be issued:	 


 


	Check here if all or any portion of the aggregate Principal being converted includes any Restricted Principal:   ̈
	 
	Please issue the Common Stock into which the Note is being converted in the following name and to the following address:


 


	Issue to:	 



 


	 	 



 


	 	 


 


	Facsimile Number:	 


 


	Holder:	 


 


	By:	 


 


	Title:	 


 


	Dated:	 


 


	Account Number:	 





	(if electronic book entry transfer)	 


 


	Transaction Code Number:	 





	(if electronic book entry transfer)	 







 




    	 



    	 



    

 


ACKNOWLEDGMENT


 


The Company hereby
acknowledges this Conversion Notice and hereby directs _________________ to issue the above indicated number of shares of Common
Stock in accordance with the Transfer Agent Instructions dated _____________, 20__ from the Company and acknowledged and agreed
to by ________________________.


 


	 	Axion Power International, Inc.
	 	 	 
	 	By:	 
	 	 	Name:
	 	 	Title: