Method of preparing a double layered nickel hydroxide active material
US5840269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of preparing a double layered nickel hydroxide comprising the steps of spraying a first solution of nickel sulfate solution and aqueous ammonia into a first reaction bath, reacting the first solution with sodium hydroxide for a predetermined time to form a core of nickel hydroxide, injecting the core of nickel hydroxide into a second reaction bath, spraying a second solution of nickel sulfate and aqueous ammonia into the second reaction bath, reacting the second solution and sodium hydroxide with the core of nickel hydroxide and growing the core of nickel hydroxide to form an outer layer on the core of nickel hydroxide, the outer layer having a different physical property from the core, is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.