Carbonaceous electrode material for secondary battery
US5741472A · kind A · utility
7Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a specific microtexture. The carbonaceous material is characterized by an average (002)-plane spacing of at least 0.365 nm according to X-ray diffraction method, and also a ratio .rho..sub.H /.rho..sub.B of at least 1.15 wherein .rho..sub.H denotes a density measured by using helium gas as a substitution medium and .rho..sub.B denotes a density measured by using butanol as a substitution medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.