Lithium-ion battery
US8105714B2 · kind B2 · utility
34Cited by
146References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2007 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Nov 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium-ion battery includes a plurality of generally planar positive and negative electrodes arranged in alternating fashion to form an electrode stack. Each of the electrodes includes a current collector having two opposed surfaces and an active material provided on at least one of the two opposed surfaces. The active material of the negative electrodes has a potential that is greater than 0.2 volts versus a reference electrode. The area of the current collectors of the negative electrodes covered by active material is not larger than the area of the current collectors of the positive electrodes covered by active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.