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US 2012/0058400 A1Published application
Rechargeable battery using an aqueous binder
AssigneeInternational Battery, Inc.
InventorsMilburn Ebenezer Jacob Muthu, Jacob Benjamin Behler
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Abstract
A battery includes a positive electrode mix having a positive electrode active material, a water soluble binder including a poly(acrylonitrile-co-acrylamide) polymer and water, and a conductive additive. The battery also includes a negative electrode mix having a negative electrode active material, a water soluble binder including a poly(acrylonitrile-co-acrylamide) polymer and water, and a conductive additive or additives. The battery also includes an electrolyte.
Claims20
A water-soluble binder comprising:
- a poly(acrylonitrile-co-acrylamide) polymer;
- and
- water.
A battery comprising:
- a positive electrode mix comprising:
- a positive electrode active material;
- a water soluble binder comprising a poly(acrylonitrile-co-acrylamide) polymer and water;
- and
- a conductive additive;
- a negative electrode mix comprising:
- a negative electrode active material;
- a water soluble binder comprising a poly(acrylonitrile-co-acrylamide) polymer and water;
- and
- a conductive additive;
- and
- an electrolyte.
9 more elements
A battery comprising:
- a positive electrode mix comprising:
- a positive active material selected from the group consisting of LiCoO2, LiNiO2, LiNi1/3Co1/3Mn1/3O2, LiNi0.8Co0.15Al0.05O2, Li1+xNi1/3Co1/3Mn1/3O2, LiMn2O4 LiFePO4 coated with one of graphite and carbon and Li2Mn2O4, LiMPO4 where M is one or more of the first row transition-metal cations selected from the group consisting of Fe, Mn, Ni, Ti, Co and combinations thereof.
- a water soluble binder comprising a poly(acrylonitrile-co-acrylamide) polymer and water;
- and
- a conductive additive selected from the group consisting of carbon black, acetylene black, carbon fibers, coke, high surface area carbon and graphite and combination thereof;
- a negative electrode mix comprising:
- a negative active material selected from the group consisting of graphite, hard carbon, silicon, tin and lithium titanate;
- an organic solvent-stable, water soluble binder in the absence of a thickening agent. The binder comprising a poly(acrylonitrile-co-acrylamide) polymer and water;
- and
- the conductive additive;
- and
- an electrolyte comprised of lithium salt in cyclic and linear carbonates.
9 more elements
Dependencies are inferred from the claim text.