公开(公告)号：US20230369590A1

公开(公告)日：2023-11-16

申请号：US18348729

申请日：2023-07-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/583 ,  H01M4/66 ,  H01M4/04

CPC classification number: H01M4/583 ,  H01M4/661 ,  H01M4/0404 ,  H01M2220/20 ,  H01M2004/021

Abstract: A secondary battery includes a negative electrode plate. A negative electrode active material layer of the negative electrode plate includes a porous carbon material. The negative electrode active material layer has a pore. The pore runs through or not through the negative electrode active material layer. Lithium metal is present in the pore.

公开(公告)号：US20240194889A1

公开(公告)日：2024-06-13

申请号：US18411968

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/48 ,  H01M4/52 ,  H01M4/587

CPC classification number: H01M4/628 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/48 ,  H01M4/52 ,  H01M4/587 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode plate for a secondary battery and a preparation method therefor, and a secondary battery comprising the negative electrode plate, a battery module, a battery pack, and a power consuming device are described. The composite lithium metal negative electrode plate of the present application comprises a current collector and an active substance layer coated on at least one surface of the current collector, wherein the active substance layer comprises an active substance and a lithiophilic material having a core-shell structure, and the core of the lithiophilic material contains a lithiophilic substance and the shell thereof is a carbon material.

公开(公告)号：US20240250268A1

公开(公告)日：2024-07-25

申请号：US18625656

申请日：2024-04-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/13

CPC classification number: H01M4/628 ,  H01M4/13 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode plate, an electrode assembly, a battery cell, a battery, and an electrical device are disclosed. The negative electrode plate includes: a negative current collector and a negative active material layer disposed on the negative current collector. A plurality of pore channels are disposed in the negative active material layer. The technical solution of this application reduces lithium plating on a surface of the negative electrode plate, and reduces the possibility of lithium dendrites growing and piercing the separator, thereby enhancing reliability of the battery.

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.