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US 2018/0294521 A1Published application
Diester-based polymer electrolytes for high voltage lithium ion batteries
AssigneeSeeo, Inc.
InventorsMalar Azagarsamy, Hany Basam Eitouni, Kulandaivelu Sivanandan
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Abstract
New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic conductivities make them especially suitable as electrolytes in high energy density lithium battery cells.
Claims22
A polymer, comprising:
- a diester-based polymer structure selected from the group consisting of:
- wherein:
- each Z and Z1 is selected independently from the group consisting of:
- each R1 is selected independently from the group consisting of H, CH3, CH2CH3, (CH2)2CH3, CH(CH3)2, CH═CH2, and CH2CH═CH2;
- and
- each R is selected independently from the group consisting of:
- wherein each X is selected independently from the group consisting of H, F, CH3, CH2CH3, (CH2)2CH3, and CF3;
- a, b, and f are each integers that range independently from 0 to 10;
- c, d, and e are each integers that range independently from 1 to 10;
- and
- n is an integer that ranges from 1 to 1000.
8 more elements
Dependencies are inferred from the claim text.