NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Nov 12, 2020
app pub date -
Feb 1, 2019
filing date -
Feb 2, 2018
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Abstract
The nonaqueous electrolyte secondary battery includes a power generation element in which a positive electrode and a negative electrode exchange ions via an electrolyte, two terminals connected to the positive electrode and the negative electrode, respectively, and an exterior body which is formed by extending one terminal of each of the outer sides to cover the power generation element and the two terminals, and the outer circumference of which is sealed. A seal strength of the outer periphery of the exterior body is the weakest at a terminal sealing portion sandwiching the two terminals; and at least one surface of the terminal seal portion has a seal strength of 4.5 N/mm or less.
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