公开(公告)号：US12087957B2

公开(公告)日：2024-09-10

申请号：US17988242

申请日：2022-11-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu Xu ,  Yonghuang Ye ,  Haizu Jin ,  Chengdu Liang ,  Qian Liu ,  Xia Hu

IPC: H01M50/242 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/103 ,  H01M50/209 ,  H01M50/291

CPC classification number: H01M50/242 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/103 ,  H01M50/209 ,  H01M50/291 ,  H01M2220/20

Abstract: A battery includes a plurality of battery cells and a support member configured to support the plurality of battery cells. The support member includes a recess. One battery cell of the battery cells extends into and is supported in the recess.

公开(公告)号：US12068457B2

公开(公告)日：2024-08-20

申请号：US17199256

申请日：2021-03-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/1391 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/1391 ,  H01M10/0568 ,  H01M2220/20 ,  H01M2300/0022 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: This application provides a lithium-ion battery, a battery module, a battery pack, and an apparatus. The lithium-ion battery includes a positive electrode plate, a negative electrode plate, a separator, and a nonaqueous electrolyte. The positive electrode plate includes Li1+xNiaCobMe(1−a−b)O2−cYc, where −0.1≤x≤0.2, 0.8≤a

公开(公告)号：US12034176B2

公开(公告)日：2024-07-09

申请号：US18054375

申请日：2022-11-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Yonghuang Ye ,  Haizu Jin ,  Chengdu Liang ,  Qian Liu

IPC: H01M50/358 ,  H01M10/6555 ,  H01M50/204 ,  H01M10/647 ,  H01M10/6556 ,  H01M10/658 ,  H01M50/209 ,  H01M50/342 ,  H01M50/35 ,  H01M50/375

CPC classification number: H01M50/358 ,  H01M10/6555 ,  H01M50/204 ,  H01M10/647 ,  H01M10/6556 ,  H01M10/658 ,  H01M50/209 ,  H01M50/3425 ,  H01M50/35 ,  H01M50/375 ,  Y02E60/10

Abstract: This application provides a battery, an apparatus, and a manufacturing method and an apparatus of batteries, and relates to the field of energy storage technologies. The battery includes two battery cells and two discharge channels. The two battery cells each include a pressure relief mechanism, and the pressure relief mechanism is configured to be actuated when internal pressure or temperature in the battery cell reaches a threshold, to release the internal pressure. The two discharge channels are configured to collect emissions respectively from the corresponding battery cell when the pressure relief mechanism is actuated.

公开(公告)号：US11990592B2

公开(公告)日：2024-05-21

申请号：US17985851

申请日：2022-11-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu Xu ,  Yonghuang Ye ,  Haizu Jin ,  Chengdu Liang ,  Wenwei Chen ,  Quanguo Li

IPC: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556

CPC classification number: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556 ,  H01M2220/20

Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.

公开(公告)号：US11769883B2

公开(公告)日：2023-09-26

申请号：US15734469

申请日：2019-11-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Jing Li ,  Wei Li ,  Qingrui Xue ,  Zige Zhang ,  Xianwei Yang

IPC: H01M4/66 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/667 ,  H01M4/13 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M4/668 ,  H01M10/0525 ,  H01M2004/021

Abstract: The electrode plate includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, wherein the current collector includes a support layer and a conductive layer, the conductive layer has a single-sided thickness D2 satisfying: 30 nm≤D2≤3 μm; the electrode active material layer is divided into two regions, an inner region and an outer region in a thickness direction of the electrode active material layer, in which the weight percentage of the conductive agent in the inner region of the electrode active material layer is higher than the weight percentage content of the conductive agent in the outer region of the electrode active material layer, and the conductive agent in the inner region of the electrode active material layer includes at least one of a one-dimensional conductive material and a two-dimensional conductive material.

公开(公告)号：US11749808B2

公开(公告)日：2023-09-05

申请号：US17335034

申请日：2021-05-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Jing Li ,  Wei Li ,  Qingrui Xue ,  Zige Zhang ,  Yang Zhang

IPC: H01M4/66 ,  H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/667 ,  H01M4/625 ,  H01M4/662 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/10 ,  H01M2220/20

Abstract: The electrode plate according to the present application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, wherein the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer, the conductive layer has a single-sided thickness D2 satisfying: 30 nmD23 μm; and a conductive primer layer containing a first conductive material and a binder is provided between the current collector and the electrode active material layer, and the first conductive material in the conductive primer layer comprises at least one of a one-dimensional conductive material and a two-dimensional conductive material. The electrode plate of the present application has good workability, and the electrochemical device including the electrode plate has high energy density, good electrical performance and long-term reliability.

公开(公告)号：US11695112B2

公开(公告)日：2023-07-04

申请号：US17553839

申请日：2021-12-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Yuzhen Zhao ,  Yingjie Guan ,  Yan Wen ,  Qisen Huang

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/02

CPC classification number: H01M4/386 ,  H01M4/0416 ,  H01M4/387 ,  H01M2004/027

Abstract: The present application provides a negative electrode active material, a process for preparing the same, and a secondary battery, a battery module, a battery pack and an apparatus related the same. The negative electrode active material comprises a core material and a polymer-modified coating layer on at least a part of a surface of the core material, the core material is one or more of a silicon-based negative electrode material and a tin-based negative electrode material, the polymer-modified coating layer comprises sulfur element and carbon element, the sulfur element has a mass percentage of from 0.2% to 4% in the negative electrode active material, the carbon element has a mass percentage of from 0.5% to 4% in the negative electrode active material, and the polymer-modified coating layer comprises a —S—C— bond.

公开(公告)号：US20230163296A1

公开(公告)日：2023-05-25

申请号：US18149672

申请日：2023-01-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Fajun Huang ,  Xiaofu Xu

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/054

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/054

Abstract: A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔRB/ΔRA≤3.50, and 0.10 mΩ/100 cycles≤ΔRA≤0.40 mΩ/100 cycles, where ΔRA is a discharge resistance growth rate of the first cell, and ΔRB is a discharge resistance growth rate of the second cell; and IMPB

公开(公告)号：US11658329B2

公开(公告)日：2023-05-23

申请号：US17233337

申请日：2021-04-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei Li ,  Zige Zhang ,  Chengdu Liang ,  Qingrui Xue ,  Jing Li ,  Pengxiang Wang

IPC: H01M10/04 ,  H01M4/02 ,  H01M50/538 ,  H01M50/536 ,  H01M50/534

CPC classification number: H01M10/0436 ,  H01M4/02 ,  H01M50/534 ,  H01M50/536 ,  H01M50/538 ,  H01M2004/021

Abstract: The present disclosure provides a secondary battery and an electrode plate thereof. The electrode plate comprises a current collector, an active material layer and a second conducting layer. The current collector comprises an insulating layer and a first conducting layer disposed on at least one surface of the insulating layer; and the active material layer is disposed on a main portion of the first conducting layer. The first conducting layer further includes a protruding portion not coated with the active material layer. The second conducting layer comprises a first portion disposed on a surface of the protruding portion of the first conducting layer opposite to the insulating layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode plate.

公开(公告)号：US11522214B2

公开(公告)日：2022-12-06

申请号：US17320258

申请日：2021-05-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Cuiping Zhang ,  Changlong Han ,  Ming Zhang ,  Peipei Chen ,  Hailin Zou

IPC: H01M10/0525 ,  H01M10/04 ,  H01M10/0585 ,  H01M10/0568 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/02

Abstract: This application relates to lithium-ion batteries and related battery modules, battery packs and devices. Specifically, the lithium-ion battery includes a positive electrode plate, a negative electrode plate, an electrolyte, and a separator, wherein the positive electrode plate includes aluminum foil as a positive electrode current collector, and a content of element copper atom as an impurity per unit area of the aluminum foil is from 0.009 g/m2 to 0.021 g/m2, and the electrolyte contains first lithium salt and additive A, and the first lithium salt is a fluorine-containing sulfonimide lithium salt, and relative to total molar amount of lithium salt in the electrolyte, the fluorine-containing sulfonimide lithium salt has a molar amount of 30 mol % or higher; and the additive A is at least one of a phosphate compound containing an unsaturated bond, a cyclic compound containing a —SO2— bond and a silicon-oxygen compound containing an unsaturated bond.