Process for preparing cadmium hydroxide, and alkaline secondary battery and method for charging the same
US5071722A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1989 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Nov 15, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a process for easily preparing .gamma.-Cd(OH).sub.2. The present invention facilitates improvement in the charge/discharge performance and energy density of an alkaline secondary battery having a cadmium electrode including .gamma.-Cd(OH).sub.2. The present invention provides superrapid-chargeable batteries, such as a nickel-cadmium alkaline secondary battery having a cadmium electrode including .gamma.-Cd(OH).sub.2 in which the weight of cadmium hydroxide contained in the negative electrode is 0.95 times as much as the weight of nickel hydroxide contained in the positive electrode, a manganese dioxide-cadmium alkaline secondary battery in which the weight of cadmium hydroxide contained in the negative electrode is not more than 0.84 times as much as the weight of manganese dioxide contained in the positive electrode, and a silver oxide-cadmium alkaline secondary battery in which the weight of cadmium hydroxide contained in the negative electrode is not more than 1.36 times as much as the weight of silver contained in the positive electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.