| US 9,812,739 B2 | ||
| Electrolyte additive and use thereof in lithium-ion battery | ||
| Wang Kefei, NingDe (CN) | ||
| Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, NingDe (CN) | ||
| Filed by NingDe Amperex Technology Limited, NingDe (CN) | ||
| Filed on Mar. 21, 2016, as Appl. No. 15/76,410. | ||
| Claims priority of application No. 2015 1 0147276 (CN), filed on Mar. 31, 2015. | ||
| Prior Publication US 2016/0294007 A1, Oct. 6, 2016 | ||
| Int. Cl. H01M 10/052 (2010.01); H01M 10/0567 (2010.01); H01M 10/42 (2006.01) | ||
| CPC H01M 10/4235 (2013.01) [H01M 10/052 (2013.01); H01M 10/0567 (2013.01); H01M 2300/0025 (2013.01)] | 11 Claims |
| 1. An electrolyte additive, comprising:
hexane-1,3,6-tricarbonitrile;
ethylene sulfate;
vinylene carbonate; and
3,3-bis(cyanomethyl)pentane dinitrile.
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| 3. An electrolyte solution, comprising:
an organic solvent comprising ethyl propionate;
a lithium salt; and
an additive comprising:
hexane-1,3,6-tricarbonitrile;
ethylene sulfate; and
vinylene carbonate, wherein a percentage by weight of vinylene carbonate in the electrolyte solution is 0.1% to 1%.
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