Non-aqueous electrolyte secondary battery
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United States of America Patent
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Feb 21, 2023
Grant Date -
May 27, 2021
app pub date -
Nov 12, 2020
filing date -
Nov 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A non-aqueous electrolyte secondary battery including an electrode body having a positive electrode and a negative electrode, a non-aqueous electrolyte, and a battery case is provided. The battery case includes a case body having an opening and configured to house the electrode body and the non-aqueous electrolyte, and a lid configured to close the opening. The lid includes a plate-shaped lid body, a valve portion configured to open when the internal pressure of the battery case is higher than a valve opening pressure determined in advance, and a degassing portion configured to set to be an opening pressure higher than the valve opening pressure of the valve portion.
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