发明名称 |
|
摘要 |
A rechargeable galvanic element with constant-volume positive manganese dioxide electrode. In a rechargeable galvanic element having an alkaline electrolyte and a positive manganese dioxide electrode the volumetric change of the electrode body caused by phase transformation, which entails undesired contact losses, is largely prevented by exertion of a steady pressure upon the electrode surfaces. For a concentric electrode arrangement, this can be done with particular effectiveness. For example, the pre-pressed MnO2 electrode can be forced into a rigid cylindrical metal cage, while the annular slot enclosed by the housing cup, lid and bottom insulation is occupied by the zinc electrode. In other cases, continuous take-off contact is preferable, using pressure springs or tensioned metal mesh which extend over the flat electrodes. |
申请公布号 |
DE3026065(C2) |
申请公布日期 |
1988.08.18 |
申请号 |
DE19803026065 |
申请日期 |
1980.07.10 |
申请人 |
VARTA BATTERIE AG, 3000 HANNOVER, DE |
发明人 |
KORDESCH, KARL, DIPL.-CHEM. PROF. DR.PHIL.;GSELLMANN, JOSEF, DIPL.-ING. DR.TECHN., GRAZ, AT |
分类号 |
H01M4/02;H01M4/24;H01M10/28 |
主分类号 |
H01M4/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|