Method for producing electrode for non-aqueous electrolyte battery
US6300008A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for producing an electrode for a non-aqueous electrolyte battery with improved charge/discharge characteristics such as discharge capacity and charge/discharge cycle life and with improved physical properties of the coating film. A mixture-coating material is prepared by kneading an active material composed of Li.sub.x Ni.sub.y M.sub.z O.sub.2 (0.8<x<1.5, 0.8<y+z<1.2, 0.ltoreq.z<0.35; M is at least one element selected from Co, Mg, Ca, Sr, Al, Mn and Fe), an electrically conductive agent composed of a graphite having a flaky shape, and a binder and/or a solvent in a kneading apparatus under a condition satisfying the formula: EQU Wa.multidot.Sa.gtoreq.0.5.times.Wg.multidot.Sg where a specific surface area of the active material by BET is represented by Sa, a blending weight thereof at the kneading step is represented by Wa, a specific surface area of the graphite by BET is represented by Sg, and a blending weight thereof at the kneading step is represented by Wg. The obtained mixture-coating material is applied onto a collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.