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US 9,287,586 B1Granted
Electrolyte solutions for high energy cathode materials and methods for use
AssigneeWildcat Discovery Technologies, Inc.
InventorsGang Cheng, Bin Li, Steven Kaye
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Abstract
Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures, high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and an additive compounds.
Claims8
A battery comprising:
- an anode;
- a cathode;
- and
- an electrolyte solution comprising a lithium salt, a non-aqueous solvent, and a copolymer additive, wherein the copolymer additive comprises poly(l-vinylpyrrolidone-co-vinyl acetate), and wherein the copolymer additive is present at a concentration and molecular weight that renders the copolymer additive soluble in the electrolyte solution.
1 more element
Dependencies are inferred from the claim text.