Method of manufacturing a non-aqueous electrolyte secondary battery by subjecting sodium magnesium metal oxide to ion-exchange of sodium for lithium
US8287606B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 22, 2010 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a non-aqueous electrolyte secondary battery by subjecting a sodium-magnesium-containing oxide represented by the general formula NacMgbMO2±a, where 0.65≦c≦0.75, 0<b≦0.3, 0≦a≦03, and M is at least one of manganese and cobalt, to ion-exchange of sodium for lithium by using a molten salt, an aqueous solution, or an organic solvent, to prepare a positive electrode active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.