Battery having porous inherently sealable separator
First Claim
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1. An improved battery comprising in combinationa. at least one cell, each cell comprising the combination ofa positive electrode,a negative electrode, andan electrolyte permeable separator between the electrodes, the separator extending beyond the periphery of the electrodes;
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wherein the improvement comprises having each electrolyte permeable separator consisting essentially of nonconductive, porous, inherently sealable polymeric film material and sealing the separator around its perimeter to the intercell connector, without applying an adhesive material to the surface of the separator periphery, to form a liquid and electrolyte impervious seal.
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Abstract
An improved battery having an electrolyte permeable porous inherently sealable separator and intercell connector both extending beyond the periphery of the cell electrodes. A polymeric film material separator seals the intercell connector. The separators may extend beyond the intercell connectors and are sealed to adjacent separators.
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Citations
6 Claims
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1. An improved battery comprising in combination
a. at least one cell, each cell comprising the combination ofa positive electrode, a negative electrode, andan electrolyte permeable separator between the electrodes, the separator extending beyond the periphery of the electrodes;- and
b. an intercell connector between each adjacent pair of cells, the connector extending outwardly beyond the periphery of the cell electrodes; wherein the improvement comprises having each electrolyte permeable separator consisting essentially of nonconductive, porous, inherently sealable polymeric film material and sealing the separator around its perimeter to the intercell connector, without applying an adhesive material to the surface of the separator periphery, to form a liquid and electrolyte impervious seal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Current AssigneeRayovac Corp (Spectrum Brands Holdings, Inc.)
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Original AssigneeESB, Inc. (Caixa de Previdência Dos Funcionários Do Banco Do Brasil)
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InventorsBergum, Bernard C., Fong, Walter Lee
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Primary Examiner(s)LeFevour, Charles F.
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Application NumberUS05/572,968Time in Patent Office1,000 DaysField of Search136/111, 136/6 B, 136/6 S, 429/152-155, 429/129, 429/133, 429/162, 429/158, 429/185US Class Current429/152CPC Class CodesH01M 6/48 with bipolar electrodes
