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US 2020/0052267 A1Published application
Secondary battery
AssigneeLG Chem, Ltd.
InventorsChul Gi HONG, Dong Kyu KIM, Dae Soo KIM
Life of this patent
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Abstract
A secondary battery according to the present invention including a battery case with an accommodation part accommodating an electrode assembly and an electrolyte, a fluid inlet/outlet port provided in the battery case to provide a moving passage through which a fluid is movable so that discharge of an inner gas and reinjection of the electrolyte are enabled, a gas discharge part restricting the discharge of the inner gas passing through the fluid inlet/outlet port, and an electrolyte reinjection part provided to reinject the electrolyte through the fluid inlet/outlet port.
Claims13
A secondary battery comprising:
- a battery case comprising an accommodation part accommodating an electrode assembly and an electrolyte;
- at least one fluid inlet/outlet port provided in the battery case to provide a moving passage through which a fluid is movable so that discharge of an inner gas and reinjection of the electrolyte are enabled;
- at least one gas discharge part restricting the discharge of the inner gas passing through the respective fluid inlet/outlet port;
- and
- at least one electrolyte reinjection part provided to reinject the electrolyte through the respective fluid inlet/outlet port,
- wherein each gas discharge part comprises:
- at least one sealing cover covering and sealing the moving passage;
- and
- an elastic member applying elastic force to the sealing cover to cover the moving passage,
- wherein, when the inner gas has a pressure greater than the elastic force of the respective elastic member, the respective moving passage covered by the respective sealing cover is opened to discharge the inner gas to an outside of the battery case.
7 more elements
Dependencies are inferred from the claim text.