Nonaqueous electrolyte battery and method for manufacturing it, and positive active material, and method for producing it
US7172836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a nonaqueous electrolyte battery comprising: a cathode including a positive active material; an negative including a negative active material and a nonaqueous electrolyte, wherein assuming that the first charging capacity of the positive active material per gram is Cc [mAh/g], the weight of the positive active material is Cw [g], the first charging capacity of the negative active material per gram is Ac [mAh/g], the first discharging capacity is Ad [mAh/g] and the weight of the negative active material is Aw [g], the value of X [%] represented by a formula 16 is located within a range expressed by 20≦X≦50.Thus, the deterioration of a capacity due to charging and discharging cycles is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.