Method of manufacturing positive electrode for nonaqueous cell
US4216247A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1978 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Sep 6, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method of manufacturing positive electrodes for nonaqueous cells in which manganese dioxide is used as positive active material and light metals such as lithium, sodium or aluminium are used as negative active material, said method comprising the steps of adding to manganese dioxide active material powder, a binder and a viscous agent solution decomposable at temperatures lower than the melting point of the binder, thereby to form paste, applying such paste to the supporting member, and heat-treating this paste-applied supporting member firstly at the decomposition temperature of the viscous agent in an oxidization atmosphere, and secondly at the melting point of the binder under vacuum or in an inert atmosphere, whereby a decrease in the discharge capacity during the manufacture is restrained, to improve the cell performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.