-
公开(公告)号：US12095118B2
公开(公告)日：2024-09-17
申请号：US17171509
申请日：2021-02-09
发明人： Takaaki Matsui , Kazuki Honda , Rikako Imoto , Hideki Nakai , Takashi Sato
IPC分类号： H01M50/538 , H01M4/02 , H01M4/133 , H01M4/134 , H01M4/38 , H01M4/66 , H01M10/0525
CPC分类号： H01M50/538 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/661 , H01M10/0525 , H01M2004/027 , H01M2004/028 , H01M2220/20
摘要： A secondary battery includes a wound electrode body. The wound electrode body includes a positive electrode, a negative electrode, and a separator. The positive electrode and the negative electrode are stacked on each other with the separator interposed therebetween and are wound about a winding axis. The wound electrode body has a section perpendicular to the winding axis. The section has an elongated shape that includes a flat part and a pair of curved parts. The curved parts oppose each other with the flat part interposed therebetween. The negative electrode includes a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector. A width of the wound electrode body, a wound-layer number of the wound electrode body, and a ratio of a second distance to a first distance satisfy at least one of Condition A and Condition B.
-
公开(公告)号：US10553855B2
公开(公告)日：2020-02-04
申请号：US15638451
申请日：2017-06-30
IPC分类号： H01M4/134 , H01M4/70 , H01M10/0568 , H01M10/0569
摘要： A secondary battery capable of improving the cycle characteristics and the initial charge and discharge characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer on an anode current collector. The anode active material layer contains a crystalline anode active material having silicon as an element, and is linked to the anode current collector.
-
公开(公告)号：US12034108B2
公开(公告)日：2024-07-09
申请号：US17171269
申请日：2021-02-09
发明人： Rikako Imoto , Takaaki Matsui , Hideki Nakai
CPC分类号： H01M10/0431 , B60L50/64 , B60L58/10 , H01M4/133 , H01M4/386 , H01M4/583 , H01M2220/20
摘要： A secondary battery includes a wound electrode body having a positive electrode, a negative electrode, and a separator. The positive electrode and the negative electrode are stacked on each other with the separator interposed therebetween and are wound about a winding axis. The wound electrode body has a section perpendicular to the winding axis. The section has an elongated shape that includes a flat part and a pair of curved parts. The curved parts oppose each other with the flat part interposed therebetween. The negative electrode includes a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector. A ratio of a second distance to a first distance is less than 1.
-
-
搜索结果
3 条记录 (耗时 0.015 秒)
