公开(公告)号：US12107227B2

公开(公告)日：2024-10-01

申请号：US17196797

申请日：2021-03-09

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Chenghua Fu ,  Peipei Chen ,  Junmin Feng

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/42 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2004/028 ,  H01M4/505 ,  H01M4/525 ,  H01M2300/0037 ,  H01M2300/004

Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the additive is a fluorinated cyclic carbonate. The carbonate solvent is a linear carbonate, or a mixture of linear carbonate and cyclic carbonate, the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the fluorinated cyclic carbonate is selected from compounds represented by formula III. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.

公开(公告)号：US12104267B2

公开(公告)日：2024-10-01

申请号：US17965158

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yi Lu ,  Xiaosong Liu ,  Keqiang Li

IPC: C25D21/06

CPC classification number: C25D21/06

Abstract: This application relates to a filtering mechanism and a device for producing a conductive material, where the filtering mechanism includes a filtering body, a cover, and a supporting member. The filtering body includes an accommodating cavity for accommodating an electroplating material and an opening provided on the filtering body; the cover is configured to cover the opening and connect to the filtering body to enclose the electroplating material in the filtering body; and the supporting member is provided on the cover to enhance connection strength between the cover and the filtering body.

公开(公告)号：US20240324253A1

公开(公告)日：2024-09-26

申请号：US18734442

申请日：2024-06-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changsong CHEN ,  Yongsheng GUO ,  Guodong CHEN ,  Chuying OUYANG

IPC: H10K30/40 ,  H10K85/50 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K30/40 ,  H10K85/50 ,  H10K2101/30 ,  H10K2101/40

Abstract: A perovskite solar cell includes a perovskite layer comprising a first surface and a second surface that are opposite each other in the thickness direction thereof; a hole transport layer provided on the first surface; and an electron transport layer provided on the second surface. The electron transport layer comprises at least two sub-layers and a doping material, and each of the sub-layers has a conduction band bottom energy level lower than that of the hole transport layer and a valence band top energy level lower than that of the hole transport layer.

公开(公告)号：US20240322405A1

公开(公告)日：2024-09-26

申请号：US18737510

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Nangui LV ,  Yan ZHAO ,  Caixia HUANG ,  Minghao TANG

IPC: H01M50/586 ,  H01M10/04 ,  H01M50/107 ,  H01M50/591

CPC classification number: H01M50/586 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/591

Abstract: A battery cell includes an electrode assembly and an insulating film, where the electrode assembly is of a winding structure, and includes a first electrode plate, a second electrode plate, and a separator, and the separator is used to isolate the first electrode plate from the second electrode plate; and the insulating film is wound around the outside of the electrode assembly by wrapping, and a winding starting section of the insulating film is connected to a winding ending section of the separator.

公开(公告)号：US20240322375A1

公开(公告)日：2024-09-26

申请号：US18678494

申请日：2024-05-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Ningsheng WU ,  Quankun LI ,  Peng WANG

IPC: H01M50/477 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474

CPC classification number: H01M50/477 ,  H01M10/0404 ,  H01M10/049 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474

Abstract: A battery cell includes a shell; an electrode assembly; and an end cap assembly, including an end cap, a first insulating member and a second insulating member, where the first insulating member is arranged between the electrode assembly and the end cap, so as to insulate and isolate the electrode assembly from the end cap, the second insulating member includes a main body portion and a first flanging portion, the first flanging portion is connected to one end of the main body portion, the main body portion is arranged between the shell and the electrode assembly, so as to insulate and isolate the shell from the electrode assembly, and the first flanging portion is connected to a side of the first insulating member facing the end cap or a side of the first insulating member away from the end cap.

公开(公告)号：US20240322142A1

公开(公告)日：2024-09-26

申请号：US18736563

申请日：2024-06-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Limei Zhang ,  Peipei Chen ,  Yao Jiang ,  Jiao Liu

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2300/0037

Abstract: Provided are a secondary battery, a battery module, a battery pack and an electrical apparatus. The secondary battery includes a positive electrode plate and a non-aqueous electrolyte solution. A positive electrode active material includes an inner core and a shell cladding the inner core. The inner core includes Li1+xMn1−yAyP1−zRzO4. The shell includes a first cladding layer cladding the inner core and a second cladding layer cladding the first cladding layer. The first cladding layer includes pyrophosphate MP2O7 and phosphate XPO4. The second cladding layer includes carbon. The non-aqueous electrolyte solution includes a first additive. The first additive includes one or more compounds in a group consisting of a compound shown in Formula 1, a compound shown in Formula 2 and a compound shown in Formula 3. The rate performance, cycling performance and high temperature stability of a lithium manganese phosphate secondary battery are increased.

公开(公告)号：US20240322108A1

公开(公告)日：2024-09-26

申请号：US18677881

申请日：2024-05-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jingdong Zhang ,  Zhihui Zhen ,  Qiangjun Wang ,  Weigang Chen ,  Bingyang Zhan

IPC: H01M4/04 ,  G01N9/36

CPC classification number: H01M4/0404 ,  G01N9/36

Abstract: This application provides an electrode plate mass detection method, coating method, apparatus, device, system, and medium, pertaining to the field of battery technologies. The method includes: controlling a surface density gauge to create radiation surfaces of different shapes on an electrode plate; obtaining surface density information corresponding to the radiation surfaces; and determining mass information of the electrode plate based on the surface density information.

公开(公告)号：US20240320857A1

公开(公告)日：2024-09-26

申请号：US18733897

申请日：2024-06-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Canbin Chen ,  Jun Hu ,  Shiping Feng ,  Qiuhui Zheng ,  Wen Chang ,  Qing Wu ,  Haoran Lu

IPC: G06T7/73 ,  G06T1/00 ,  H01M10/04

CPC classification number: G06T7/74 ,  G06T1/0007 ,  H01M10/0404 ,  G06T2207/10004 ,  G06T2207/30164

Abstract: The present application discloses a method and device for controlling misalignment of electrode plates, electrode plates, an electrochemical cell, and a battery. The method includes: acquiring cut hole position information of an anode electrode plate, and calculating a first width deviation value corresponding to the anode electrode plate according to the cut hole position information and a calibration width of the anode electrode plate; acquiring tab position information of a cathode electrode plate, and calculating a second width deviation value corresponding to the cathode electrode plate according to the tab position information and a calibration width of the cathode electrode plate; and when the anode electrode plate and the cathode electrode plate are stacked, adjusting a feed position of the cathode electrode plate according to the first width deviation value, and compensating for a cut width of the cathode electrode plate according to the second width deviation value.

公开(公告)号：US12101052B2

公开(公告)日：2024-09-24

申请号：US17880690

申请日：2022-08-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinwei Chen ,  Yuanmiao Zhao ,  Da Xie ,  Yiqi Liang ,  Yizhen Hou ,  Zhimin Dan

IPC: H02P6/21 ,  B60L50/60 ,  H02P1/02 ,  H02P21/22

CPC classification number: H02P6/21 ,  B60L50/60 ,  H02P1/029 ,  H02P21/22

Abstract: An electric vehicle control system and a control method, an electric vehicle power-on method, an electric vehicle power-off method, and an electric vehicle charging method are disclosed in this application. The control system includes a domain control unit controlling an electric vehicle, a current sampling unit sampling the current of a power battery and a motor of the electric vehicle and sending sampling signals to the domain control unit, and electrical device, driven by the power battery, sampling the current flowing through it and sending the sampling signals to the domain control unit. The domain control unit, according to the sampling signals sent by the electrical device and the current sampling unit, manages the power battery and controls a motor driver module and the electrical device. The structure of the control system and the control policy are simplified and the power-on and power-off time is shortened.

公开(公告)号：US12100867B2

公开(公告)日：2024-09-24

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.