Gm Global Technolgoy Operations, Inc.

Robert E Adams

Clarence A Meadows

James R Bish

A method of making a bipolar battery comprising a plurality of framed, bipolar electrodes stacked together and embedded in a housing molded in situ thereabout. The housing will preferably comprise a polymeric foam.

Method of making a bipolar battery housing

A bipolar battery comprising a plurality of framed, bipolar electrodes stacked together and embedded in a housing molded in situ thereabout. The housing will preferably comprise a polymeric foam.

Bipolar battery

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.

Bipolar battery electrode

A bipolar battery comprising a plurality of bipolar electrodes stacked together, each bipolar electrode comprising a conductive septum having positive and negative active material on opposite faces thereof. Each electrode has a nonconductive frame formed thereabout, and a mesa-like lattice which is integral with the frame, overlays the faces of the septum and is defined by an annular shoulder formed between the border of the lattice and the frame. Discrete spacer frames interjacent the electrode frames separate the electrodes from each other and define a region thereabout for retaining the battery's electrolyte. The faces of the spacer include an annular recess contiguous an inner rim thereof which receives, in nesting fashion, the mesa-like lattices for interlocking the several frames together.

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Selma, IN, United States of America

Robert E Adams