公开(公告)号：US12119457B2

公开(公告)日：2024-10-15

申请号：US18525335

申请日：2023-11-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haotian Xie ,  Xin Sun ,  Yongshou Lin

IPC: H01M10/42 ,  H01M4/13 ,  H01M4/131 ,  H01M4/58 ,  H01M10/05 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M10/4235 ,  H01M4/131 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: A secondary battery includes a positive electrode plate and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film provided on at least one surface of the positive current collector. The positive electrode film includes a positive electrode active material and a lithium supplement. The lithium supplement includes at least one of substances represented by formula (I) below, and the positive electrode film and/or electrolyte solution comprises one or more nitrone derivatives, a molecule of each of which includes a structure represented by formula (II) below:

公开(公告)号：US20240339709A1

公开(公告)日：2024-10-10

申请号：US18745144

申请日：2024-06-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingpeng KE

IPC: H01M50/242 ,  H01M10/04 ,  H01M50/218 ,  H01M50/249

CPC classification number: H01M50/242 ,  H01M10/0404 ,  H01M50/218 ,  H01M50/249

Abstract: A battery protective structure, a battery, a power consuming device, and a method for manufacturing a battery are described. The battery protective structure includes a base plate including a first surface and a second surface. The first surface is used for the arrangement of a plurality of battery cells, the battery cells each include a plurality of side walls, and the side walls are configured to be perpendicular to the base plate; and a force transferring member disposed on the base plate, one end of the force transferring member being joined to the second surface and the other end of the force transferring member extending in a direction away from the second surface; wherein a joint between the force transferring member and the second surface is configured to correspond to at least part of the side walls in an arrangement direction of the first surface and the second surface.

公开(公告)号：US20240339706A1

公开(公告)日：2024-10-10

申请号：US18749655

申请日：2024-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng Chai ,  Qingkui Chi

IPC: H01M50/213 ,  H01M10/625 ,  H01M10/6555 ,  H01M10/658 ,  H01M50/249

CPC classification number: H01M50/213 ,  H01M10/625 ,  H01M10/6555 ,  H01M10/658 ,  H01M50/249 ,  H01M2220/20

Abstract: A battery and an electric device are provided. The battery includes: a plurality of battery cells, and each battery cell being cylindrical; and a box body, provided with an accommodation cavity configured for accommodating the plurality of battery cells. The area of the accommodation cavity on a plane perpendicular to the central axis of the battery cell is S, the diameter of a single battery cell is A, satisfying A/S≤25×10−6.

公开(公告)号：US20240339681A1

公开(公告)日：2024-10-10

申请号：US18749859

申请日：2024-06-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaoji WU ,  Xiaobo CHEN ,  Shilong CHEN

IPC: H01M10/42 ,  H01M10/48 ,  H01M50/209

CPC classification number: H01M10/425 ,  H01M10/486 ,  H01M50/209 ,  H01M2010/4271 ,  H01M2200/20

Abstract: A battery pack, a safety control method therefor, and an electric apparatus are provided. The battery pack includes: a box assembly; a plurality of battery cells disposed in the box assembly, the battery cell having a housing; and a safety protection mechanism disposed in the box assembly and having a first state and a second state. When the safety protection mechanism is in the first state, the plurality of battery cells are insulated from the box assembly. The safety protection mechanism is in the second state when a preset trigger condition is met, and when the safety protection mechanism is in the second state, the housings of at least some of the battery cells are electrically connected to the box assembly.

公开(公告)号：US20240339611A1

公开(公告)日：2024-10-10

申请号：US18540898

申请日：2023-12-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinghui WANG ,  Huihui LIU ,  Wenmeng ZHANG ,  Shuhua CHEN

IPC: H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/62

CPC classification number: H01M4/583 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/1393 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/027

Abstract: The present application provides a negative electrode plate, comprising a current collector and a negative electrode film layer, wherein the negative electrode film layer comprises a negative electrode active material, a copolymer formed by acrylonitrile and acrylic acid components, and a polyol. Optionally, the negative electrode film layer further comprises a polyether. The cross-linked polymer and polyether described in the present application can reduce the rebound rate of the negative electrode plate during cycling, thereby improving the capacity retention rate of the battery.

公开(公告)号：US20240332982A1

公开(公告)日：2024-10-03

申请号：US18737425

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Miaomiao ZHANG ,  Weilong FENG ,  Shuyun XIONG

IPC: H02J3/46

CPC classification number: H02J3/46 ,  H02J2300/24

Abstract: A circuit includes: a DC-AC module, a DC-DC module, and a control module. The control module is configured to calculate, according to an actual output power of a plurality of photovoltaic systems and an output power demand value of the DC-AC module, AC voltages and DC voltages under a plurality of different bus voltage setting values; determine, according to the different bus voltage setting values and the AC voltages and the DC voltages under the different bus voltage setting values, a target bus voltage value, a target AC voltage value, and a target DC voltage value when the energy storage module reaches maximum charging power; and control the plurality of photovoltaic systems, the DC-AC module, and the DC-DC module to perform output correspondingly according to the target bus voltage value, the target AC voltage value, and the target DC voltage value.

公开(公告)号：US20240332721A1

公开(公告)日：2024-10-03

申请号：US18741799

申请日：2024-06-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuan Li ,  Yuyong Lei ,  Zhijun Guo ,  Shengyun Shi ,  Yingjun Song

IPC: H01M50/342 ,  H01M50/367

CPC classification number: H01M50/3425 ,  H01M50/367 ,  H01M2200/20

Abstract: Provided are a battery cell, a battery and an electrical device. The battery cell comprises an electrode assembly, a shell, a pressure relief mechanism and a support plate; the pressure relief mechanism is arranged on the first side plate and is configured to be actuated when the internal pressure of the battery cell reaches a first threshold, so as to release the internal pressure; the support plate is arranged between the first side plate and the electrode assembly; the support plate is provided with a weak portion which is opposite to the pressure relief mechanism in the thickness direction of the first side plate; the shape of the weak portion is the same as that of the outline of the pressure relief mechanism, and the external dimension of the weak portion is not greater than the dimension of the outline of the pressure relief mechanism.

公开(公告)号：US20240332691A1

公开(公告)日：2024-10-03

申请号：US18672035

申请日：2024-05-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenhui Zhang ,  Chao Long ,  Xingdi Chen ,  Peng Wang

IPC: H01M50/209 ,  H01M50/244 ,  H01M50/249

CPC classification number: H01M50/209 ,  H01M50/244 ,  H01M50/249

Abstract: This application relates to a box, a battery, and an electric apparatus. The box includes a main body and a lateral beam. The main body forms an accommodating cavity. The top of the main body forms at least a portion of the top of the box. The battery is mounted to an external apparatus via the top of the box. The main body has a circumferential sidewall disposed around its top outer edge, the lateral beam being disposed on the circumferential sidewall.

公开(公告)号：US20240332527A1

公开(公告)日：2024-10-03

申请号：US18740540

申请日：2024-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tianci Yuan ,  Yao Jiang ,  Xinxin Zhang ,  Chuying Ouyang ,  Lingjing Wu ,  Shangdong Chen ,  Weibin Kang ,  Zhiqiang Wang ,  Shaojun Liu ,  Bin Deng

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/583 ,  H01M10/052

CPC classification number: H01M4/5825 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/583 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: Provided are a positive electrode active material, a method for the preparation thereof and a positive electrode plate, a secondary battery and an electrical device. The positive electrode active material having a core-shell structure, including a core and a shell cladding the core, the core has a chemical formula of LimAxMn1-yByP1-zCzO4-nDn, the shell includes a first cladding layer cladding the core, a second cladding layer cladding the first cladding layer and a third cladding layer cladding the second cladding layer, the first cladding layer includes crystalline pyrophosphates LiaMP2O7 and/or Mb(P2O7)c, the second cladding layer includes crystalline phosphate XPO4, and the third cladding layer is carbon. The positive electrode active material of the present application enables the secondary battery and electrical device to have a relatively high energy density, and good cycling performance, rate performance and safety performance.

公开(公告)号：US20240326066A1

公开(公告)日：2024-10-03

申请号：US18501046

申请日：2023-11-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haohua YU ,  Haohao YAN ,  Jiancheng CAI ,  Ganyu XU ,  Guangsheng CHEN

IPC: B02C23/08 ,  B02C15/00 ,  B02C23/20

CPC classification number: B02C23/08 ,  B02C15/001 ,  B02C23/20

Abstract: Embodiments of the present application provide a crushing and drying device, including: a classification unit, a first box body, and a second box body connected in sequence along the direction of gravity, the first box body being configured to accommodate and crush materials, the second box body being configured to convey airflow to the first box body to dry the materials, and the classification unit being configured to screen out and discharge crushed and dried target materials, the target materials being materials with particle sizes less than a preset threshold.