Square-shaped sealed secondary battery and method of manufacturing same
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United States of America Patent
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Nov 13, 2018
Grant Date -
Oct 16, 2014
app pub date -
Sep 3, 2012
filing date -
Sep 9, 2011
priority date (Note) -
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Abstract
In a prismatic sealed secondary battery provided with an outer can made of a metal, the ability of inserting the electrode assembly into the outer can is improved to restrain the displacement and damages of the insulation member when inserting the electrode assembly into the outer can. The prismatic sealed secondary battery of the present invention includes an insulation member having a bottomed box shape which is a shape obtained by eliminating the upper surface from the surfaces of a hexahedron having a cuboid form, wherein each width of at least a pair of side surfaces facing each other in the insulation member is smaller than the width of the electrode assembly facing the pair of side surfaces.
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