Nonaqueous electrolyte battery, battery pack and rechargeable vacuum cleaner
US8415053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | May 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode comprises a current collector made of aluminum or an aluminum alloy and an active material layer laminated on the current collector. The active material layer contains first active material particles having an average particle diameter of 1 μm or less and a lithium diffusion coefficient of 1×10−9 cm2/sec or less at 20° C., and second active material particles having an average particle diameter of 2 to 50 μm. A true density of the second active material particles is larger by 0.01 to 2.5 g/cm3 than a true density of the first active material particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.