Additives for electrolytes in Li-ions batteries
AssigneesHydro-Quebec, Murata Manufacturing Co., Ltd.
InventorsCharlotte Mallet, Sylviane Rochon, Karim Zaghib
Life of this patent
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Abstract
Method of improving the performance and safety of a Li-ion battery. The method includes using a nitrile-based small organic compound of general formula I, V or IX outlined in the application in association with the electrolyte of the battery. An electrolyte including a nitrile-based small organic compound. A battery including the electrolyte.
Claims11
A lithium-ion battery comprising a nitrile-based organic compound in association with an electrolyte of the battery, wherein the compound has a general formula IV outlined below
- wherein:
- X is C or N;
- Ri are each independently selected from the group consisting of H, alkyl, cycloalkyl, alkene, alkyne, aryl and alkylaryl, alkoxy, thioalkoxy, OH, SH, NH2, a halogen atom, a halogeno alkyl, a halogeno alkoxy, a halogeno thioalkoxy, a cyano alkyl, a cyano alkene, a cyano alkyne, CN, NO2, SO2, COOH and acyloxycarbonyl;
- and
- when Ri is H, m′ is 5 and when Ri is not H, m′ is an integer from 0 to 5.
An electrolyte comprising a nitrile-based organic compound of a general formula IV outlined below
- wherein:
- X is C or N;
- Ri are each independently selected from the group consisting of H, alkyl, cycloalkyl, alkene, alkyne, aryl and alkylaryl, alkoxy, thioalkoxy, OH, SH, NH2, a halogen atom, a halogeno alkyl, a halogeno alkoxy, a halogeno thioalkoxy, a cyano alkyl, a cyano alkene, a cyano alkyne, CN, NO2, SO2, COOH and acyloxycarbonyl;
- and
- when Ri is H, m′ is 5 and when Ri is not H, m′ is an integer from 0 to 5.
Dependencies are inferred from the claim text.