Active material, method for manufacturing active material, electrode, lithium ion secondary battery, and method for manufacturing lithium ion secondary battery
US10611639B2 · kind B2 · utility
3Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Mar 31, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing an active material, capable of improving the discharge capacity of a lithium ion secondary battery is provided. The method for manufacturing an active material according to the present invention includes a first step of heating a mixture solution including a lithium source, a phosphate source, a vanadium source, and water under pressure to generate a precursor in the mixture solution, and adjusting the pH of the mixture solution including the precursor to be 6 to 8; and a second step of heating the precursor at 425 to 650° C. after the first step to generate an active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.