公开(公告)号：US20240145794A1

公开(公告)日：2024-05-02

申请号：US18409803

申请日：2024-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingbu CHEN ,  Yonghuang YE ,  Xin SUN ,  Lili WU ,  Rundie LIU ,  Xuan LI ,  Miaomiao DONG ,  Liang YUN ,  Peidong SONG

IPC: H01M10/42

CPC classification number: H01M10/4242 ,  H01M2220/20

Abstract: Lithium replenishing spaces are disposed on a current collection structure, such that the lithium replenishing spaces communicate with an active layer on one side; and the battery is replenished with lithium by using lithium replenishing agents in the lithium replenishing spaces to offset an irreversible lithium consumption in a cycle process, so as to increase the total capacity and the energy density of the battery. According to the present application, due to average weights MA of corresponding active materials in different distribution regions on the active layer, a sum V0 of internal volumes of lithium replenishing spaces corresponding to each of the distribution regions is controlled in a positively correlated manner based on a change in the average weights of the active materials in the different distribution regions.

公开(公告)号：US20240014435A1

公开(公告)日：2024-01-11

申请号：US18466819

申请日：2023-09-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingbu CHEN ,  Xin SUN ,  Lili WU ,  Miaomiao DONG ,  Xuan LI ,  Liang YUN ,  Rundie LIU ,  Peidong SONG

IPC: H01M10/04 ,  H01M50/536 ,  H01M4/38 ,  H01M50/538 ,  H01M4/134 ,  H01M10/0525

CPC classification number: H01M10/0431 ,  H01M50/536 ,  H01M4/382 ,  H01M50/538 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/027

Abstract: A compound electrode sheet includes two single electrode sheets, and each single electrode sheet includes a current collector and an active material layer. The current collector is provided with a main body and a protrusion portion, and the protrusion portion is arranged protruding out of the main body in an extension direction of the current collector. The active material layer is arranged on a surface of the main body. The protrusion portions of the two current collectors of the two single electrode sheets are fixedly connected. The active material layers of the two single electrode sheets are arranged opposite to each other.