Porous nickel foil for negative electrode of alkaline battery, production method therefor and production device therefor
US7998329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2003 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Feb 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A porous nickel foil for a negative electrode of an alkaline battery formed by an electrolytic deposition method, wherein the porous nickel foil is flexible and has a thickness of 10-35 μm and a Vickers hardness of 70-130. An electrodeposition drum for producing porous metal foil by an electrolytic deposition method including a drum having a surface onto which metal foil is deposited, a plurality of holes formed in the surface and an insulating resin filled in the holes, wherein the ratio of depth L and diameter D (L/D) of the hole is at least 1 and no clearance, into which deposited metal otherwise cuts in a wedge shape, exists at the boundary between the insulating resin filled in the hole and an opening edge of the hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.