Nickle positive electrode for an alkaline storage cell
US6210833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Feb 26, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pasted nickel electrode for a storage cell having an alkaline electrolyte, the electrode comprising a current collector and an active mass based on nickel hydroxide in powder form together with a carbon-based conductor, the electrode being characterized by the fact that said carbon-based conductor is made up of particles of carbon that withstand electrochemical oxidation and that satisfy the following relationship: PA1 W>0.025 in units of 10.sup.9 g/m, where PA1 W=TC002/S.times.G, where PA2 TC002 is the size of the [002] crystallite on the X-ray diffraction pattern expressed in nanometers; PA2 S is the specific surface area of the particles expressed in m.sup.2 /g; PA2 G is the graphitization coefficient of the carbon defined as follows: EQU G=(d002-0.3354)/(0.3450-0.3354) PA2 d002 is the lattice constant in the 002 direction in nanometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.