Lithium secondary battery
US6537702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Oct 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery having a higher energy density and a longer cycle life than conventional batteries is disclosed, which comprises a positive electrode capable of absorbing and desorbing lithium, a non-aqueous electrolyte and a negative electrode capable of absorbing and desorbing lithium, wherein the negative electrode comprises a nitride represented by the general formula: LixAyMezN, where A is boron, silicon or aluminum, Me is at least one element selected from the group consisting of transition metal elements and metal elements of Group IIIB, IVB and VB, and x, y and z satisfy 0<x<3, 0<y≦1, 0<z≦1 and 0<x+y+z≦3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.