Battery module
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United States of America Patent
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Oct 10, 2023
Grant Date -
Aug 6, 2020
app pub date -
Feb 13, 2018
filing date -
Mar 1, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A battery module includes: a battery stack that includes a plurality of batteries stacked; a pair of end plates that are disposed at both ends, in stack direction X in which the batteries are stacked, of the battery stack, the pair of end plates including at least one end plate that includes a first portion made of a first metal that has a Young's modulus higher than a Young's modulus of a second metal, and a second portion made of the second metal that has a density lower than a density of the first metal; a restraint member that is made of the first metal and sandwiches the battery stack and the pair of end plates in stack direction X; and a welded portion that connects the first portion of the at least one end plate with the restraint member.
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