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公开(公告)号：US20230275228A1
公开(公告)日：2023-08-31
申请号：US18129360
申请日：2023-03-31
CPC分类号： H01M4/587 , H01M4/133 , H01M2004/021
摘要： An electrochemical device includes a positive electrode plate which includes a positive active material layer and a negative electrode plate which includes a negative current collector, a first negative active material layer, and a second negative active material layer. In a length direction, the first negative active material layer includes a first edge and a second edge opposite to the first edge. In the length direction, the second negative active material layer includes a third edge and a fourth edge opposite to the third edge. In the length direction, the positive active material layer includes a fifth edge and a sixth edge opposite to the fifth edge. The third edge protrudes beyond the first edge and the fifth edge in the length direction. A distance between the first edge and the fifth edge in the length direction of the negative electrode plate is less than 2 mm.
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公开(公告)号：US20220320510A1
公开(公告)日：2022-10-06
申请号：US17703591
申请日：2022-03-24
发明人： Wei Tao
摘要： A negative electrode comprises a negative electrode current collector, a first active material layer, and a second active material layer; wherein the second active material layer is located between the negative electrode current collector and the first active material layer; the first active material layer comprises a first active material and a target compound, the target compound comprises AxBy, where 0
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公开(公告)号：US20230275216A1
公开(公告)日：2023-08-31
申请号：US18129491
申请日：2023-03-31
发明人： Wei Tao , Zhaohan Lin , Fei Wu
CPC分类号： H01M4/366 , H01M4/587 , H01M4/386 , H01M4/133 , H01M4/134 , H01M10/0525 , H01M2004/027
摘要： An electrochemical apparatus includes a positive electrode plate including a positive electrode active material layer, and a negative electrode plate includes a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer, and the first negative electrode active material layer is provided between the negative electrode current collector and the second negative electrode active material layer. In a length direction, the first negative electrode active material layer has a first edge and a second edge, the second negative electrode active material layer has a third edge and a fourth edge, and the positive electrode active material layer has a fifth edge and a sixth edge. The first edge exceeds the third edge and the fifth edge in the length direction. A distance between the third edge and the fifth edge in the length direction is less than 2 mm.
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