H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/45
H01M 2/12 (2006.01) H01M 10/00 (2006.01)
Patent
CA 1173898
REDUCED MAINTENANCE EXPLOSION DAMAGE RESISTANT STORAGE BATTERY ABSTRACT OF THE DISCLOSURE A reduced maintenance, explosion damage resistant storage battery (10), having internal means for both recombining evolved gases and for protecting the bat- tery against damage due to evolved gas ignition whether from external or internal sources is disclosed. In a first embodiment of the invention, a honeycomb-like member (60) of electrolyte-resistant material substan- tially fills the space within the battery above the battery electrodes, dividing this volume into a plural- ity of small volumes (76), surrounded by cooling sur- faces, so that ignition of one small volume (76) by an external spark or by failure of an internal battery component will not cause damage. A small space (20) is left above the honeycomb member (60), and a planar catalytic recombination element (78) is provided, substantially filling this space. In a second embodi- ment, the honeycomb member (60) itself is the catalytic recombination element, being formed of a hydrophobic material such as polytetrafluoroethylene impregnated with platinum or palladium, or of an inert material plated with platinum or palladium.
411626
Allied Corporation
Macrae & Co.
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