Electrolytic solution for lithium ion secondary battery, and lithium ion secondary battery
US9825332B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolytic solution for lithium ion secondary batteries contains: a lithium salt electrolyte; an organic solvent; and an aliphatic compound having three or more carboxylic acid groups in a molecule.A lithium ion secondary battery includes: a cathode including a cathode active material that is capable of absorbing and releasing lithium and contains manganese (Mn) as a major transit metal species; an anode; and a non-aqueous electrolytic solution. The electrolytic solution is the above-described solution. The aliphatic compound has a molecular weight within the range from 50,000 to 500,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.