Improvements in secondary voltalo Batteries.
Year: 1885

page_text: Improvements in secondary voltalo Batteries.
We CHARLES MOSELEY of the Chapelfield Works Ardwick Manchester in the
County of Lancaster Indiarubber Manufacturer and THOMAS PARKER of Commercial
Road Wolverhampton in the County of Stafford Electrical Engineer do hereby
declare the nature of this invention to be as follows:―
This Invention relates to secondary voltaic batteries or "accumulators and has
for its objects to secure a large storage capacity, to reduce the risk of short circuit
and to avoid the disintegration or rapid deterioration of the plates or electrodes of
such batteries.
These Improvements consist in constructing the batteries with positive and
negative plates or electrodes respectively composed constructed and prepared as
hereinafter indicated.
The positive plates are constructed or composed of metallic lead in sheets plates
or strips or of interwoven or contiguous wires strips or tubes of lead or of metallic
lead in any suitable or convenient form. When it is permissible the lead plates or
electrodes may be grooved indented perforated corrugated roughened or be otherwise
provided with or have produced or formed thereon or therein depressions cavities
spaces projections or other irregularities of their surface of mass. The plates or
electrodes so constructed or composed are subjected to the action of a solution of
nitric acid or of a solution of nitric and sulphuric acids or to the vapours of the
solution or solutions and are thereafter ready for use in the construction of the
battery.
The negative plates or electrodes are constructed or composed in the manner or
by the methods hereinbefore described for the positive plates or electrodes but
instead of being subjected to the acid treatment the interstices depressions cavities
spaces projections or other irregularities of surface or of mass are coated packed or
have otherwise applied or attached thereto therein or thereon an oxide or oxides of
lead or finely divided reduced precipitated or spongy lead alone or in combination
with each other or in combination with other suitable material or materials.
The interstices depressions cavities spaces projections or other irregularities of
the surface or mass of the plates or electrodes serve to retain or hold in position
the oxide or oxides or other salt of lead or the spongy divided reduced or precipi-
tated lead which may have been formed or which may have been coated packed or
...

page_text: otherwise applied or attached thereto therein or thereon and they further serve to
maintain the intimacy of contact between the plates or electrodes and the substance
or substances formed within or upon them or applied or attached thereto.
The positive and negative plates or electrodes respectively composed constructed
and prepared as hereinbefore indicated are immersed in a solution of sulphuric acid
or other suitable electrolyte contained in a box cell or other vessel and may be
separated from each other by indiarubber grids porous earthenware plates or by
other material or means ordinarily employed.
We have found by experiment that a battery constructed as herein before indicated
has a large storage capacity that the plates or electrodes are not liable to disin-
tegration or rapid deterioration in use and that there is little or no risk of short
circuit by material displaced from the plates or electrodes.

page_text: We CHARLES MOSELEY, of the Chapelfield Works Ardwick Manchester in the
County of Lancaster India Rubber Manufacturer and THOMAS PARKER of Com-
mercial Road Wolverhampton in the County of Stafford, Electrical Engineer do
hereby declare the nature of this invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
This Invention relates to secondary voltaic batteries or "accumulators" and bas
for its objects to secure a large storage capacity, to reduce the risk of short circuit
and to avoid the disintegration or rapid deterioration of the plates or electrodes of
such batteries.
These Improvements consist in the manufacture or construction of secondary
batteries having their positive and negative plates or electrodes respectively
composed constructed or prepared as hereinafter described.
The positive plates that is to say the plates which or the surfaces of which
become oxidised during the process of charging the battery are constructed or
composed of metallic lead in sheets plates or strips or of interwoven or contiguous
wires strips or tubes of lead or of metallic lead in any suitable or convenient form.
When it is permissible the lead plates or electrodes may be grooved indented
perforated corrugated roughened or be otherwise provided with or have produced
or formed thereon or therein depressions cavities spaces projections or other
irregularities of their surface of mass. The plates or electrodes so constructed or
composed are subjected to the action of a solution of nitric acid or of a solution of
nitric and sulphuric acids or to the vapours of the solution or solutions and are
thereafter ready for use in the construction of the battery.
The negative plates or electrodes are constructed or composed in the manner or
by the methods hereinbefore described for the positive plates or electrodes but
instead of being subjected to the acid treatment the interstices depressions cavities
spaces projections or other irregularities of surface or of mass may be coated
packed or have otherwise applied or attached thereto therein or thereon an oxide
or oxides of lead or finely divided reduced precipitated or spongy lead alone or in
combination with each other or in combination with other suitable material or
materials.
The interstices depressions cavities spaces projections or other irregularities of
the surface or mass of the plates or electrodes serve to retain or hold in position
the oxide or oxides or other salt of lead or the spongy divided reduced or precipi-
tated lead which may have been formed or which may have been coated packed or
otherwise applied or attached thereto therein or thereon and they further serve to
maintain the intimacy of contact between the plates or electrodes and the substance
or substances formed within or upon them or applied or attached thereto.
The positive and negative plates or electrodes respectively composed constructed
and prepared as herein before indicated are immersed in a solution of sulphuric
acid or other suitable electrolyte contained in a box cell or other vessel and may

page_text: be separated from each other by india rubber grids porous earthenware plates or
by other material or means ordinarily employed.
We have found by experiment that a battery constructed as hereinbefore
indicated has a large storage capacity that the plates or electrodes are not liable to
disintegration or rapid deterioration in nse and that there is little or no risk of
short circuit by material displaced from the plates or electrodes.
Having now particularly ascertained and described the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is—
(1.) In a secondary voltaic battery or accumulator the combination of positive
and negative plates or electrodes respectively constructed and prepared substantially
as hereinbefore described.
(2.) The manufacture or construction of secondary voltaic batteries or accumu-
lators having their positive and negative plates or electrodes respectively composed
constructed and prepared substantially as hereinbefore set forth and described.
WILLIAM E. HEYS,
Agent for the Applicants.