公开(公告)号：US12095051B2

公开(公告)日：2024-09-17

申请号：US18384675

申请日：2023-10-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Miaomiao Dong ,  Shaocong Ouyang ,  Huan Ni ,  Hongyu Liu ,  Changfeng Bie ,  Xin Sun ,  Chenghua Fu

IPC: H01M10/44 ,  H01M4/02 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M4/60 ,  H01M10/0525 ,  H01M10/42 ,  H01M50/249

CPC classification number: H01M10/443 ,  H01M4/136 ,  H01M4/364 ,  H01M4/5825 ,  H01M4/60 ,  H01M10/0525 ,  H01M10/4235 ,  H01M10/441 ,  H01M50/249 ,  H01M2004/028

Abstract: A battery pack includes a first battery cell, a second battery cell, and a third battery cell. A positive electrode active substance of each battery cell is composed of lithium iron phosphate and a low-temperature additive. The low-temperature additive is selected from compounds containing at least two carbonyl groups, which are conjugated with an unsaturated structure or an atom having lone-pair electrons connected with the carbonyl groups, and a discharging cut-off voltage of the battery pack at a low temperature has the following rules: discharging cut-off voltages V1, V2, and V3 of the first battery cell, second battery cell, and third battery cell range from 1.95V to 2.1V, from 1.8 V to 2.0V, from 1.6V to 1.9V, respectively, and V1, V2, and V3 satisfy a relationship of V1>V2>V3.

公开(公告)号：US12002960B2

公开(公告)日：2024-06-04

申请号：US18383542

申请日：2023-10-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chang Zhu ,  Shaocong Ouyang ,  Baoyun Xu ,  Tingzhen Xie

IPC: H01M4/62 ,  H01M50/204 ,  H01M50/267 ,  H01M4/02

CPC classification number: H01M4/62 ,  H01M50/204 ,  H01M50/267 ,  H01M2004/028

Abstract: A battery pack and an electric device including the battery pack. The battery pack includes a battery pack container and first, second and third battery cells accommodated in different regions of the battery pack container, the first, second and third battery cells each has a first and a second discharge voltage plateau, an average discharge voltage of the first discharge voltage plateau is higher than an average discharge voltage of the second discharge voltage plateau, and the first, second and third battery cells have different proportions of the discharge capacity corresponding to the second discharge voltage plateau.

公开(公告)号：US20230420785A1

公开(公告)日：2023-12-28

申请号：US18465172

申请日：2023-09-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tingzhen Xie ,  Shaocong Ouyang ,  Chenghua Fu ,  Baoyun Xu ,  Yunmei Lin

IPC: H01M50/267 ,  H01M50/209 ,  H01M50/233 ,  H01M4/134 ,  H01M4/131

CPC classification number: H01M50/267 ,  H01M50/209 ,  H01M50/233 ,  H01M4/134 ,  H01M4/131 ,  H01M2220/20 ,  H01M2200/105 ,  H01M2004/028

Abstract: Provided are a battery pack and a power consuming device. The battery pack includes a battery pack case and a plurality of battery cells accommodated in the battery pack case. An inner space of the battery pack case may be divided into a first region located at the center and a second region enclosing the first region. The plurality of battery cells include: at least one first battery cell disposed in the first region; and at least one second battery cell disposed in the second region. An internal resistance of the first battery cell and an internal resistance of the second battery cell increase with the decrease of a temperature.

公开(公告)号：US11811054B2

公开(公告)日：2023-11-07

申请号：US17969120

申请日：2022-10-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baoyun Xu ,  Shaocong Ouyang ,  Chenghua Fu

IPC: H01M4/36 ,  H01M50/204 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/42 ,  H01M4/58 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/4264 ,  H01M50/204 ,  H01M2004/028 ,  H01M2220/20

Abstract: A battery pack may include a battery pack case and battery cells accommodated in the battery pack case, where an inner space of the battery pack case may include a first area and a second area, a first battery cell may be provided in the first area, second battery cells may be provided in the second area, and the second battery cells may be arranged around the first battery cell; the first battery cell and the second battery cells each may have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau may be higher than an average discharge voltage in the second discharge voltage plateau.

公开(公告)号：US11769922B2

公开(公告)日：2023-09-26

申请号：US17985941

申请日：2022-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baoyun Xu ,  Shaocong Ouyang ,  Chenghua Fu

IPC: H01M50/204 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/42 ,  H01M4/58 ,  H01M16/00 ,  H01M50/267 ,  H01M4/02

CPC classification number: H01M50/204 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/4264 ,  H01M16/00 ,  H01M50/267 ,  H01M2004/028 ,  H01M2220/20

Abstract: The battery pack may include a battery pack case and battery cells accommodated in the battery pack case. In each of the first battery cell, the second battery cells, and the third battery cells, when the sum of a discharge capacity corresponding to the first discharge voltage plateau and a discharge capacity corresponding to the second discharge voltage plateau is 100%, a percentage of the discharge capacity corresponding to the second discharge voltage plateau of the third battery cells may be larger than a percentage of the discharge capacity corresponding to the second discharge voltage plateau of the second battery cells, which may be larger than a percentage of the discharge capacity corresponding to the second discharge voltage plateau of the first battery cell.