Method of charging lithium ion secondary battery including a constant current, charging apparatus, and power supply apparatus
US7583058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2004 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Aug 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method of charging a lithium ion secondary battery uses a lithium ion secondary battery comprising a positive electrode including a mixed metal oxide containing at least Li, Mn, and Ni as metal components as a positive electrode active material, a negative electrode, and a nonaqueous electrolytic solution containing a lithium salt; and includes a constant current charging step of carrying out constant current charging with a set charging current value I1 corresponding to a set value nC satisfying the condition represented by the expression of 2C≦nC≦60C, where C is a rated capacity value of the lithium ion secondary battery, and n is a number of 2 to 60.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.