Power storage device and method for manufacturing the same
US9196906B2 · kind B2 · utility
5Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Feb 5, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power storage device is reduced in weight. A metal sheet serving as a negative electrode current collector is separated and another negative electrode current collector is formed. For example, through the step of forming silicon serving as a negative electrode active material layer over a titanium sheet and then performing heating, the titanium sheet can be separated. Then, another negative electrode current collector with a thickness of more than or equal to 10 nm and less than or equal to 1 μm is formed. Thus, light weight of the power storage device can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.