Accumulator device
US9030804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2010 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is an accumulator device that can prevent aluminum forming an outer container from forming an alloy with lithium even when fine lithium metal powder is isolated from a lithium ion supply source to adhere to the outer container.The accumulator device has an outer container at least a part of which is formed of aluminum or an aluminum alloy, a positive electrode and a negative electrode that are arranged in the outer container, and an electrolytic solution injected into the outer container and containing a lithium salt, wherein the negative electrode and/or the positive electrode is doped with a lithium ion by electrochemical contact of a lithium ion supply source arranged in the outer container with the negative electrode and/or the positive electrode, and the portion formed of aluminum or the aluminum alloy in the outer container is set to a positive potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.