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US 11,404,696 B1Granted
Secondary aqueous battery electrodes including vinyl acetate-ethylene
AssigneeZaf Energy Systems, Incorporated
InventorsHannah S. Smith, Melissa D. McIntyre, Adam Weisenstein, Andrew F. Souder, II
Life of this patent
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Abstract
A green secondary electrode includes a conductive substrate, active material and material additives in direct contact with the conductive substrate, and a combination of vinyl acetate-ethylene and methylcellulose-based additive binding the conductive substrate, active materials, and material additives together. The green secondary electrode may be a positive electrode or a negative electrode.
Claims15
A battery comprising:
- a negative electrode comprising a conductive substrate, active material particles, at least some being in direct contact with the conductive substrate, and a combination of distinct portions of a vinyl acetate-ethylene copolymer binder and distinct portions of a methylcellulose-based polymer binder adhering the conductive substrate and active material particles together to form a three-dimensional structure with void spaces.
A battery comprising:
- a positive electrode comprising a conductive substrate, active material particles, at least some being in direct contact with the conductive substrate, and a combination of distinct portions of a vinyl acetate-ethylene copolymer binder and distinct portions of a methylcellulose-based polymer binder adhering the conductive substrate and active material particles together to form a three-dimensional structure with void spaces.
A nickel-zinc battery comprising:
- a zinc-based negative secondary electrode comprising a first conductive substrate and first active material particles bound together by a combination of distinct portions of a vinyl acetate-ethylene copolymer binder and distinct portions of a first methylcellulose-based polymer binder to form a first three-dimensional structure with void spaces;
- and
- a nickel hydroxide-based positive electrode comprising a second conductive substrate and second active material particles bound together by a combination of distinct portions of a vinyl acetate-ethylene copolymer binder and distinct portions of a second methylcellulose-based polymer binder to form a second three-dimensional structure with void spaces.
Dependencies are inferred from the claim text.