| 摘要 |
1471307 Catalyst device for storage battery ROBERT BOSCH GmbH 22 May 1974 [23 May 1973] 22853/74 Heading H1B A catalyst device floats on the surface of the electrolyte in a lead-acid battery and comprises a number of bodies, preferably spherical, each having a light-weight core, e.g. of carbon, ceramic, expanded polystyrene or a hollow glass ball, the core containing or supporting the catalyst. The catalyst may be palladium or platinum and each body is surrounded by a gas permeable hydrophobic layer or layers of PTFE. In one example there is an inner layer of unsintered PTFE and an outer layer of sintered PTFE. |
