Lithium secondary battery
US6492063B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a lithium secondary battery of this invention, the negative electrode uses, as an active material, an alloy including an A phase of a first intermetallic compound (A), and a B phase of a second intermetallic compound (B) having the same constituent elements as and a different composition from the first intermetallic compound (A) and/or a C phase consisting of one of the constituent elements of the first intermetallic compound (A), and at least one of the A phase, the B phase and the C phase is capable of electrochemically absorbing and discharging lithium ions. Thus, the lithium secondary battery can exhibit good charge-discharge cycle performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.