Prismatic storage battery or cell with flexible recessed portion
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United States of America Patent
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Oct 20, 2015
Grant Date -
Oct 29, 2009
app pub date -
Apr 15, 2009
filing date -
Apr 24, 2008
priority date (Note) -
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Abstract
A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at ridge portions on at least three sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.
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