High-voltage-stable electrolytes for Li.sub.1+x Mn.sub.2 O.sub.4 /carbon secondary batteries
US5192629A · kind A · utility
60Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Apr 21, 1992 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Apr 21, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrolyte resistant to oxidation normally resulting from high voltage charging of a secondary battery comprising a Li.sub.1+x Mn.sub.2 O.sub.4 intercalation positive electrode comprises a 0.5M to 2M solution of LiPF.sub.6 dissolved in a mixture of non-aqeuous dimethylcarbonate (DMC) and ethylene carbonate (EC) solvents wherein said solvents are present in a weight percent ratio range from about 95 DMC:5 EC to 20 DMC:80 EC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.