Exhibit 10.2

      

    

     

      

    FORM OF LOCK-UP AGREEMENT

     

    

    THIS LOCK-UP AGREEMENT (this “Agreement”) is made and entered into as of October 12, 2020 by
      and among (i) AMCI Acquisition Corp., a Delaware corporation (together with its successors, the “Purchaser”),
      (ii) AMCI Sponsor LLC, in the capacity under the Merger Agreement as the Purchaser Representative (including any successor Purchaser Representative appointed in accordance therewith, the “Purchaser Representative”), and (iii) the undersigned (“Holder”).  Any capitalized term used but not defined in this Agreement will
      have the meaning ascribed to such term in the Merger Agreement.

     

    

    WHEREAS, on or about the date hereof, (i) the Purchaser, (ii) AMCI Merger Sub Corp., a Delaware corporation and a
      wholly-owned subsidiary of the Purchaser (“Merger Sub”), (iii) the Purchaser Representative, (iv) Vassilios
      Gregoriou, in the capacity as the Seller Representative under the Merger Agreement, and (v) Advent Technologies Inc., a Delaware corporation (together with its successors, the “Company”), entered into that certain Agreement and Plan of Merger (as amended from time to time in accordance with the terms thereof, the “Merger Agreement”),
      pursuant to which, among other matters, upon the consummation of the transactions contemplated thereby (the “Closing”), Merger Sub will merge with and into the Company, with the Company
      continuing as the surviving entity (the “Merger”), and as a result of which, all of the issued and outstanding capital stock of the Company immediately prior to the Closing shall no longer
      be outstanding and shall automatically be cancelled and shall cease to exist, in exchange for the right to receive the Merger Consideration, all upon the terms and subject to the conditions set forth in the Merger Agreement and in accordance with the
      applicable provisions of the of the DGCL;

    

    

    WHEREAS, as of the date hereof, Holder is a holder of the Company Stock in such amounts and classes or series as
      set forth underneath Holder’s name on the signature page hereto; and

     

    

    WHEREAS, pursuant to the Merger Agreement, and in view of the valuable consideration to be received by Holder
      thereunder, the parties desire to enter into this Agreement, pursuant to which the Merger Consideration received by Holder in the Merger (all such securities, together with any securities paid as dividends or distributions with respect to such
      securities or into which such securities are exchanged or converted, the “Restricted Securities”), shall
      become subject to limitations on disposition as set forth herein.

    

    

    NOW, THEREFORE, in consideration of the premises set forth above, which are incorporated in this Agreement as if
      fully set forth below, and intending to be legally bound hereby, the parties hereby agree as follows:

    

    

    
      1

      
        


    

    1.        Lock-Up Provisions.

    

    

    (a) Holder hereby agrees not to, during the period (the “Lock-Up Period”) commencing from the Closing and ending on the earlier of (x) the one (1) year anniversary of the
        date of the Closing, (y) the date on which the closing price of the Purchaser Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any twenty (20)
        trading days within any thirty (30) trading day period commencing at least one-hundred fifty (150) days after the Closing, and (z) the date after the Closing on which Purchaser consummates a liquidation, merger, share exchange or other similar
        transaction with an unaffiliated third party that results in all of Purchaser’s stockholders having the right to exchange their equity holdings in Purchaser for cash, securities or other property:  (i) lend, offer, pledge, hypothecate, encumber,
        donate, assign, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any Restricted
        Securities, (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the Restricted Securities, or (iii) publicly disclose the intention to do any of the
        foregoing, whether any such transaction described in clauses (i), (ii) or (iii) above is to be settled by delivery of Restricted Securities or other securities, in cash or otherwise (any of the foregoing described in clauses (i), (ii) or (iii), a “Prohibited Transfer”).  The foregoing sentence shall not apply to the transfer of any or all of the Restricted Securities owned by Holder (I) by gift, will or intestate succession upon the
        death of Holder, (II) to any Permitted Transferee (as defined below) or (III) pursuant to a court order or settlement agreement related to the distribution of assets in connection with the dissolution of marriage or civil union; provided, however,
        that in any of cases (I), (II) or (III) it shall be a condition to such transfer that the transferee executes and delivers to the Purchaser and the Purchaser Representative an agreement stating that the transferee is receiving and holding the
        Restricted Securities subject to the provisions of this Agreement applicable to Holder, and there shall be no further transfer of such Restricted Securities except in accordance with this Agreement.  As used in this Agreement, the term “Permitted Transferee” shall mean: (A) the members of Holder’s immediate family (for purposes of this Agreement, “immediate family” shall mean with respect to any natural person, any of the
        following: such person’s spouse, the siblings of such person and his or her spouse, and the direct descendants and ascendants (including adopted and step children and parents) of such person and his or her spouses and siblings), (B) any trust for
        the direct or indirect benefit of Holder or the immediate family of Holder, (C) if Holder is a trust, the trustor or beneficiary of such trust or to the estate of a beneficiary of such trust, (D) if Holder is an entity, as a distribution to limited
        partners, shareholders, members of, or owners of similar equity interests in Holder upon the liquidation and dissolution of Holder, and (E) any affiliate of Holder.  Holder further agrees to execute such agreements as may be reasonably requested by
        Purchaser or the Purchaser Representative that are consistent with the foregoing or that are necessary to give further effect thereto.

     

    

    (b) If any Prohibited Transfer is made or attempted contrary to the provisions of this Agreement, such purported Prohibited Transfer shall be null and void ab initio, and Purchaser shall refuse to recognize any such purported
        transferee of the Restricted Securities as one of its equity holders for any purpose.  In order to enforce this Section 1, Purchaser may impose stop-transfer instructions with respect to the Restricted Securities of Holder (and Permitted
        Transferees and assigns thereof) until the end of the Lock-Up Period.

     

    

    (c) During the Lock-Up Period, each certificate evidencing any Restricted Securities shall be stamped or otherwise imprinted with a legend in substantially the following form, in addition to any other applicable legends:

     

    

    “THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER SET FORTH IN A LOCK-UP AGREEMENT, DATED AS OF OCTOBER 12, 2020, BY AND AMONG THE ISSUER OF SUCH SECURITIES (THE
      “ISSUER”), A CERTAIN REPRESENTATIVE OF THE ISSUER NAMED THEREIN AND THE ISSUER’S SECURITY HOLDER NAMED THEREIN, AS AMENDED.  A COPY OF SUCH LOCK-UP AGREEMENT WILL BE FURNISHED WITHOUT CHARGE BY THE ISSUER TO THE HOLDER HEREOF UPON WRITTEN REQUEST.”

     

    

    (d) For the avoidance of any doubt, Holder shall retain all of its rights as a stockholder of the Purchaser during the Lock-Up Period, including the right to vote any Restricted Securities, subject to the terms of the Merger
        Agreement.

    

    

    2.        Miscellaneous.

    

    

    (a) Termination of Merger Agreement.  This Agreement shall be binding upon Holder upon Holder’s execution and delivery of this Agreement, but this Agreement shall only become effective upon the Closing.  Notwithstanding
        anything to the contrary contained herein, in the event that the Merger Agreement is terminated in accordance with its terms prior to the Closing, this Agreement and all rights and obligations of the parties hereunder shall automatically terminate
        and be of no further force or effect.

     

    

    
      2

      
        


    

    (b) Binding Effect; Assignment.  This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit of the parties hereto and their respective permitted successors and assigns.  This Agreement and
        all obligations of Holder are personal to Holder and may not be transferred or delegated by Holder at any time. The Purchaser may freely assign any or all of its rights under this Agreement, in whole or in part, to any successor entity (whether by
        merger, consolidation, equity sale, asset sale or otherwise) without obtaining the consent or approval of Holder.  If the Purchaser Representative is replaced in accordance with the terms of the Merger Agreement, the replacement Purchaser
        Representative shall automatically become a party to this Agreement as if it were the original Purchaser Representative hereunder.

     

    

    (c) Third Parties.  Nothing contained in this Agreement or in any instrument or document executed by any party in connection with the transactions contemplated hereby shall create any rights in, or be deemed to have been
        executed for the benefit of, any person or entity that is not a party hereto or thereto or a successor or permitted assign of such a party.

     

    

    (d) Governing Law; Jurisdiction.  This Agreement and any dispute or controversy arising out of or relating to this Agreement shall be governed by and construed in accordance with the laws of the State of New York, without
        regard to the conflict of law principles thereof. All Actions arising out of or relating to this Agreement shall be heard and determined exclusively in any state or federal court located in New York, New York (or in any appellate courts thereof)
        (the “Specified Courts”). Each party hereto hereby (i) submits to the exclusive jurisdiction of any Specified Court for the purpose of any Action arising out of or relating to this
        Agreement brought by any party hereto and (ii) irrevocably waives, and agrees not to assert by way of motion, defense or otherwise, in any such Action, any claim that it is not subject personally to the jurisdiction of the above-named courts, that
        its property is exempt or immune from attachment or execution, that the Action is brought in an inconvenient forum, that the venue of the Action is improper, or that this Agreement or the transactions contemplated hereby may not be enforced in or
        by any Specified Court. Each party agrees that a final judgment in any Action shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by Law.  Each party irrevocably consents to the
        service of the summons and complaint and any other process in any other action or proceeding relating to the transactions contemplated by this Agreement, on behalf of itself, or its property, by personal delivery of copies of such process to such
        party at the applicable address set forth in Section 2(g). Nothing in this Section 2(d) shall affect the right of any party to serve legal process in any other manner permitted by applicable law.

     

    

    (e) WAIVER OF JURY TRIAL. EACH OF THE PARTIES HERETO HEREBY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY WITH RESPECT TO ANY ACTION DIRECTLY OR INDIRECTLY ARISING OUT OF,
        UNDER OR IN CONNECTION WITH THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. EACH PARTY HERETO (i) CERTIFIES THAT NO REPRESENTATIVE OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF
        ANY ACTION, SEEK TO ENFORCE THAT FOREGOING WAIVER AND (ii) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 2(e).

     

    

    
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    (f) Interpretation. The titles and subtitles used in this Agreement are for convenience only and are not to be considered in construing or interpreting this Agreement. In this Agreement, unless the context otherwise
        requires: (i) any pronoun used in this Agreement shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns, pronouns and verbs shall include the plural and vice versa; (ii) “including” (and with correlative
        meaning “include”) means including without limiting the generality of any description preceding or succeeding such term and shall be deemed in each case to be followed by the words “without limitation”; (iii) the words “herein,” “hereto,” and
        “hereby” and other words of similar import shall be deemed in each case to refer to this Agreement as a whole and not to any particular section or other subdivision of this Agreement; and (iv) the term “or” means “and/or”. The parties have
        participated jointly in the negotiation and drafting of this Agreement. Consequently, in the event an ambiguity or question of intent or interpretation arises, this Agreement shall be construed as if drafted jointly by the parties hereto, and no
        presumption or burden of proof shall arise favoring or disfavoring any party by virtue of the authorship of any provision of this Agreement.

     

    

    (g) Notices.  All notices, consents, waivers and other communications hereunder shall be in writing and shall be deemed to have been duly given when delivered (i) in person, (ii) by facsimile or other electronic means, with
        affirmative confirmation of receipt, (iii) one Business Day after being sent, if sent by reputable, nationally recognized overnight courier service or (iv) three (3) Business Days after being mailed, if sent by registered or certified mail,
        pre-paid and return receipt requested, in each case to the applicable party at the following addresses (or at such other address for a party as shall be specified by like notice):

    

    

    	
            If to the Purchaser Representative or, at or prior to the Closing, Purchaser, to:

             

            

          	
            With a copy (which will not constitute notice) to:

             

            

          
	
            AMCI Sponsor LLC

          	
            Ellenoff Grossman & Schole LLP

          
	
            1501 Ligonier Street, Suite 370

          	
            1345 Avenue of the Americas, 11th Floor

          
	
            Latrobe, PA  15601

          	
            New York, New York 10105

          
	
            
              Attn: William Hunter

            

          	
            Attn:

          	
            Stuart Neuhauser, Esq.

          
	
            
              Telephone No.:  (203) 856-7285

            

          	

          	
            Matthew A. Gray, Esq.

          


    	
            
              Email:  whunter@amcigroup.com

            

          	
            Facsimile No.:

          	
            (212) 370-7889

          
	
            

            

          	
            Telephone No.:

          	
            (212) 370-1300

          


    	 	
            Email:

          	
            sneuhauser@egsllp.com

          
	 	

          	
            mgray@egsllp.com

          
	 	  


    

    

    
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              If to the Purchaser after the Closing, to:

            	
              with copies (which shall not constitute notice) to:

            
	
               

            	
               

            
	 	
              and

            
	
              Advent Technologies Holdings, Inc.

            	
              

              

            
	
              One Mifflin Place

            	
              
                
                  Ellenoff Grossman & Schole LLP

                

              

            
	
              119 Mt Auburn Street, Suite 400

            	
              
                
                  
                    1345 Avenue of the Americas, 11th Floor

                  

                

              

            
	
              Cambridge, MA  02138

            	
              
                
                  New York, New York 10105

                

              

            
	
              Attn: James F. Coffey

            	
              Attn:

            	
              Stuart Neuhauser, Esq.

            
	
              Telephone No.: (617) 645-0017

            	
               

            	
              Matthew A. Gray, Esq.

            
	
              Email: jcoffey@advent.energy

            	
              Facsimile No.:  (212) 370-7889

            
	 	
              Telephone No.: (212) 370-1300

            
	
              and

            	
              Email:

            	
              sneuhauser@egsllp.com

            
	
               

            	
               

            	
              mgray@egsllp.com

            
	
              the Purchaser Representative

            	
               

            
	
               

            	
              and

            
	
               

            	
               

            
	
               

            	
              Ropes & Gray LLP

            
	
               

            	
              1211 Avenue of the Americas

            
	
               

            	
              New York, New York 10036-8704

            
	
               

            	
              Attn:

            	
              Carl Marcellino, Esq.

            
	
               

            	
               

            	
              Paul D. Tropp, Esq.

            
	
               

            	
              Facsimile No.:  (212) 596-9090

            
	
               

            	
              Telephone No.: (212) 841-0623

            
	
               

            	
                                         (212) 596-9515

            
	
               

            	
              Email:

            	
              Carl.Marcellino@ropesgray.com

            
	
               

            	
               

            	
              Paul.Tropp@ropesgray.com

            
	
               

            	
               

            	
               

            
	 
	
              If to Holder, to:  the address set forth below Holder’s
                name on the signature page to this Agreement.

            
	
               

            


    

    

    

    (h) Amendments and Waivers.  Any term of this Agreement may be amended and the observance of any term of this Agreement may be waived (either generally or in a particular instance, and either retroactively or prospectively)
        only with the written consent of the Purchaser, the Purchaser Representative and Holder.  No failure or delay by a party in exercising any right hereunder shall operate as a waiver thereof.  No waivers of or exceptions to any term, condition, or
        provision of this Agreement, in any one or more instances, shall be deemed to be or construed as a further or continuing waiver of any such term, condition, or provision.

     

    

    (i) Severability.  In case any provision in this Agreement shall be held invalid, illegal or unenforceable in a jurisdiction, such provision shall be modified or deleted, as to the jurisdiction involved, only to the extent
        necessary to render the same valid, legal and enforceable, and the validity, legality and enforceability of the remaining provisions hereof shall not in any way be affected or impaired thereby nor shall the validity, legality or enforceability of
        such provision be affected thereby in any other jurisdiction.  Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties will substitute for any invalid, illegal or unenforceable
        provision a suitable and equitable provision that carries out, so far as may be valid, legal and enforceable, the intent and purpose of such invalid, illegal or unenforceable provision.

     

      

    
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    (j)           
                     Specific Performance.  Holder acknowledges that its obligations under this Agreement are unique, recognizes and affirms that in the event of a
        breach of this Agreement by Holder, money damages will be inadequate and Purchaser (and the Purchaser Representative on behalf of the Purchaser) will have no adequate remedy at law, and agrees that irreparable damage would occur in the event that
        any of the provisions of this Agreement were not performed by Holder in accordance with their specific terms or were otherwise breached.  Accordingly, each of the Purchaser and the Purchaser Representative shall be entitled to an injunction or
        restraining order to prevent breaches of this Agreement by Holder and to enforce specifically the terms and provisions hereof, without the requirement to post any bond or other security or to prove that money damages would be inadequate, this being
        in addition to any other right or remedy to which such party may be entitled under this Agreement, at law or in equity.

    

    

    (k)                        
      Entire Agreement.  This Agreement constitutes the full and entire understanding and agreement among the parties with respect to the subject matter hereof, and any
        other written or oral agreement relating to the subject matter hereof existing between the parties is expressly canceled; provided, that, for the avoidance of doubt, the foregoing shall not affect the rights and obligations of the parties
        under the Merger Agreement or any Ancillary Document.  Notwithstanding the foregoing, nothing in this Agreement shall limit any of the rights or remedies of the Purchaser and the Purchaser Representative or any of the obligations of Holder under
        any other agreement between Holder and the Purchaser or the Purchaser Representative or any certificate or instrument executed by Holder in favor of the Purchaser or the Purchaser Representative, and nothing in any other agreement, certificate or
        instrument shall limit any of the rights or remedies of the Purchaser or the Purchaser Representative or any of the obligations of Holder under this Agreement.

    

    

    (l)                        
      Further Assurances.  From time to time, at another party’s request and without further consideration (but at the requesting party’s reasonable cost and expense),
        each party shall execute and deliver such additional documents and take all such further action as may be reasonably necessary to consummate the transactions contemplated by this Agreement.

    

    

    (m)                       Counterparts; Facsimile.  This Agreement may also be executed and delivered by facsimile signature or by email in portable document format in two or more counterparts, each
        of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

     

    

    {Remainder of Page Intentionally Left Blank; Signature Pages Follow}

     

    

    
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    IN WITNESS WHEREOF, the parties have executed this Lock-Up Agreement as of the date first written above.

    

    

    	 	
            Purchaser:

          
	 	 
	 	
            AMCI ACQUSITION CORP.

          
	 	 
	 	
            By:

          	 	 
	 	
            Name:

          
	 	
            Title:

          
	 	 
	 	
            The Purchaser Representative:

          
	 	 
	 	
            AMCI Sponsor LLC,

          
	 	
            solely in the capacity under the Merger Agreement 

            as the Purchaser Representative

          
	 	 
	 	
            By:

          	 	 
	 	
            Name:

          
	 	
            Title:

          


    

    

    {Additional Signature on the Following Page}

    

    

    
      {Signature Page to Lock-Up Agreement}

    

    
      
        


    

    IN WITNESS WHEREOF, the parties have executed this Lock-Up Agreement as of the date first written above.

     

    

    	Holder: 
	 	 
	Name of Holder: 	[	]
	 	 


    	
            By:

          	 	 
	
            Name: 

          	 
	
            Title: 

          	 


    

    

    	
            Number and Type of Shares of Company Stock:

          	 
	 	 
	
            Company Common Stock:

          	 	 
	 	 	 
	
            Series Seed Preferred Stock:

          	 	 
	 	 	 
	
            Series A Preferred Stock:

          	 	 
	 	 	 
	
            Address for Notice:

          	 
	 	 


    	
            Address:

          	 	 
	 	 
	 	 
	 	 


    	
            Facsimile No.:

          	 	 
	
            Telephone No.:

          	 	 


    	
            Email:

          	
            

            

          	 


    

    

    

    

    {Signature Page to Lock-Up Agreement}