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1.发明申请公开(公告)号：US20190229325A1
公开(公告)日：2019-07-25
申请号：US16312972
申请日：2017-07-10
发明人： Ji Woo AHN , Dongwoo KIM , Jaehou NAH , Bumjin CHANG , Yurim CHA , Yeonjoo CHOI , Ilyoung CHOI
摘要： A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed, and the negative active material includes a primary particle of a crystalline carbon-based material and secondary particle that is an assembly of the primary particles, wherein a ratio of an average particle diameter (D50) of the secondary particle relative to an average particle diameter (D50) of the primary particle (average particle diameter (D50) of the secondary particle/average particle diameter (D50) of the primary particle) ranges from about 1.5 to about 5 and an aspect ratio of the primary particle ranges from about 1 to about 7.
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2.发明公开公开(公告)号：US20230307607A1
公开(公告)日：2023-09-28
申请号：US18326895
申请日：2023-05-31
发明人： Ji Woo AHN , Dongwoo KIM , Jaehou NAH , Bumjin CHANG , Yurim CHA , Yeonjoo CHOI , Ilyoung CHOI
摘要： A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed, and the negative active material includes a primary particle of a crystalline carbon-based material and secondary particle that is an assembly of the primary particles, wherein a ratio of an average particle diameter (D50) of the secondary particle relative to an average particle diameter (D50) of the primary particle (average particle diameter (D50) of the secondary particle/average particle diameter (D50) of the primary particle) ranges from about 1.5 to about 5 and an aspect ratio of the primary particle ranges from about 1 to about 7.
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