Bipolar battery electrode
AssigneeGeneral Motors Corporation
InventorsClarence A. Meadows, James R. Bish, Robert E. Adams
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Abstract
A bipolar electrode for a Pb-acid battery comprising a lead septum plate and a porous coating on at least one face of the septum plate for anchoring at least the positive active material paste to the septum. The porous coating comprises multiple layers of lead particles fused together and to the septum face so as to define a plurality of interconnected, interstitial pores therebetween. The particles are fused droplets of lead arc-sprayed into the surface of the septum. A particular bipolar and battery construction useful with the bipolar electrode is disclosed.
Claims8
A pasted bi-polar electrode for a Pb-acid storage battery comprising:
- an electrolyte-impervious, lead septum;
- a highly porous coating comprising multiple layers of lead particles fused to each other and to at least one face of said septum so as to define a plurality of interconnecting, interstitial pores therebetween, said pores being of sufficient size to receive and retain leady active material paste pressed thereinto;
- a first leady active material paste overlaying said coating and impregnating at least a portion of said pores;
- and
- a second leady active material overlaying and adhering to a second face of said septum opposite said one face.
Dependencies are inferred from the claim text.