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公开(公告)号:US20210328254A1
公开(公告)日:2021-10-21
申请号:US17260687
申请日:2020-04-29
申请人: LG Chem, Ltd.
发明人: Hyunjun Choi , Youngdeok Kim , Daesoo Kim , Suwon Jee
IPC分类号: H01M10/058 , H01M10/052 , H01M10/44 , H01M10/52 , H01M50/609
摘要: The present disclosure relates to a method for manufacturing a lithium secondary battery comprising the steps of: a) preparing an electrode assembly including a positive electrode, a negative electrode, and a separator interposed therebetween; b) housing the electrode assembly in a battery case, injecting a non-aqueous electrolyte thereto and sealing the battery case to produce a preliminary battery; c) activating the preliminary battery; d) charging the activated preliminary battery to a SOC in a range of 25 to 35 to produce a secondary battery; and e) subjecting the secondary battery to a high-temperature aging for 1 hour to 6 hours at a temperature range of 60° C. to 100° C., and a lithium secondary battery manufactured by the above manufacturing method.
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公开(公告)号:US20220158260A1
公开(公告)日:2022-05-19
申请号:US17274974
申请日:2020-06-25
申请人: LG Chem, Ltd.
发明人: Hyunjun Choi , Youngdeok Kim , Daesoo Kim
IPC分类号: H01M10/42 , H01M10/0525
摘要: The present disclosure relates to a method of recovering a degenerated lithium battery cell, with the lithium battery cell being configured so that an electrode assembly including a positive electrode, a negative electrode and a separator interposed therebetween is impregnated with a non-aqueous electrolyte and embedded in a battery case, the method including: subjecting a lithium battery cell degenerated by 5% or more to a high temperature treatment for 1 to 6 hours at a temperature ranging from 60° C. to 100° C. in a fully discharged state.
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