公开(公告)号：US20250070414A1

公开(公告)日：2025-02-27

申请号：US18726783

申请日：2023-02-28

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ji Hoon RYU ,  Dong Kyu KIM ,  Yeo Min YOON ,  Tae Seob LIM ,  Jung Pil LEE

IPC: H01M50/534 ,  H01M10/0565

Abstract: A battery cell with improved battery durability and battery lifetime, a method of preparing the battery cell, and a battery module including the battery cell are provided. The battery cell includes a cell case having an accommodation space; an electrode assembly which is accommodated in the accommodation space and includes a plurality of electrodes, an electrode tab formed on at least one side of each of the plurality of electrodes, and a separator disposed between the plurality of electrodes; a gel electrolyte which contains a first molarity of a first lithium salt and is accommodated in the accommodation space while surrounding the electrode tab; and a liquid electrolyte which contains a second molarity, which is lower than the first molarity, of a second lithium salt and is accommodated between the plurality of electrodes.

公开(公告)号：US20250062502A1

公开(公告)日：2025-02-20

申请号：US18235125

申请日：2023-08-17

Applicant: Energizer Brands, LLC

Inventor： Weiwei Huang ,  Jingdong Guo

IPC: H01M50/534 ,  H01M10/04 ,  H01M50/109 ,  H01M50/167 ,  H01M50/533

Abstract: Described are safer coin cells and materials having improved cold formability for making a contact for the coin cell. A titanium-based material can be used that has ≥95 wt. % titanium, ≤0.5 wt. % iron, ≤0.5 wt. % oxygen, ≤0.5 wt. % carbon, ≤0.5 wt. % nitrogen, and ≤0.5 wt. % hydrogen. A contact made from such material is resistant to reactions that form hydroxides in contact with bodily fluids, such as after ingestion. The titanium-based material has improved cold formability at room temperature, which reduces or eliminates microcracking during formation of the contact. Reduced or eliminated microcracking reduced or eliminated alkalizing reactions that would otherwise occur with conventional coin cells when in contact with bodily fluids.

公开(公告)号：US20250038368A1

公开(公告)日：2025-01-30

申请号：US18531628

申请日：2023-12-06

Applicant: AESC Japan Ltd.

Inventor： Qiu Huang ,  Zhijie Gong ,  Jia Qian ,  Peipei Che

IPC: H01M50/533 ,  H01M50/107 ,  H01M50/152 ,  H01M50/213 ,  H01M50/342 ,  H01M50/534 ,  H01M50/536 ,  H01M50/636

Abstract: A cylindrical battery cell including a housing, an electrode assembly, a cap and a current collecting component is provided. The housing includes an end wall and a side wall surrounding the end wall. An opening is formed on one side of the side wall facing away from the end wall. The electrode assembly is disposed in the housing, and a first tab is provided on one side of the electrode assembly facing the opening. The cap is disposed on a side where the opening located, and is welded and connected to the side wall to seal the opening. The current collecting component is disposed on one side of the electrode assembly facing the opening, and the current collecting component is welded and connected to the first tab. The current collecting component includes a current collecting body and a thickened portion welded and connected to the cap.

公开(公告)号：US20250030134A1

公开(公告)日：2025-01-23

申请号：US18355713

申请日：2023-07-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jing Gao ,  Brian J. Koch ,  Zhe Li ,  Huaxin Li ,  Anne Zhang

IPC: H01M50/54 ,  B60L50/64 ,  H01M50/249 ,  H01M50/46 ,  H01M50/533 ,  H01M50/534 ,  H01M50/536

Abstract: Presented are electrochemical devices with in-stack reference electrodes, methods for making/using such devices, and battery cells with stacked electrodes segregated by electrode separator assemblies having built-in reference electrodes. An electrochemical device includes a protective outer housing that contains an ion-conducting electrolyte. A stack of working electrodes is packaged inside the device housing in electrochemical contact with the electrolyte. At least one electrode separator assembly is located inside the housing, interposed between a neighboring pair of these working electrodes. The electrode separator assembly includes an electrically insulating separator sheet with a reference electrode. A tab pocket, which projects from an end of the separator sheet, includes a tab chamber with a chamber opening. An electrode tab is formed with an electrically conductive material and attached to the tab pocket. One end of the electrode tab is disposed in the tab chamber and the other end projects out from the chamber opening.

公开(公告)号：US12199315B2

公开(公告)日：2025-01-14

申请号：US17554412

申请日：2021-12-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Huasheng Su ,  Chengyou Xing ,  Quankun Li ,  Peng Wang ,  Wenzhong Liu ,  Yanyun Qin

IPC: H01M50/559 ,  H01M10/42 ,  H01M10/48 ,  H01M50/152 ,  H01M50/179 ,  H01M50/528 ,  H01M50/534 ,  H01M50/538 ,  H01M50/545 ,  H01M50/548 ,  H01M50/566 ,  H01M50/567

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which belong to the field of battery technologies. The battery cell includes an adapting member, the adapting member includes a first connection portion for connecting an electrode terminal and a second connection portion for connecting an electrode assembly, the first connection portion and the second connection portion are dividedly set and connected to each other, and the first connection portion is in a multilayer structure and includes multiple layers of conductive sheets provided in a stacking manner, the second connection portion is in a single-layer structure, and a minimum thickness of the first connection portion is greater than a maximum thickness of the second connection portion.

公开(公告)号：US12183875B2

公开(公告)日：2024-12-31

申请号：US18398445

申请日：2023-12-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsuyoshi Ehara ,  Yoshinori Shibata

IPC: H01M10/0525 ,  H01M50/209 ,  H01M50/503 ,  H01M50/522 ,  H01M50/534 ,  H01M50/536 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562

Abstract: The present disclosure provides a joining technique capable of improving strength and reducing electrical resistance of a connecting portion that performs heterometal interjunction in a sealed battery. A mode of the sealed battery disclosed herein includes an electrode body, a battery case, a positive electrode internal terminal, a positive electrode external terminal, a negative electrode internal terminal, and a negative electrode external terminal. In the sealed battery, in a connecting portion between the negative electrode internal terminal and the negative electrode external terminal, an upper end of the negative electrode internal terminal and the negative electrode external terminal are stacked with a plated layer interposed therebetween and, at the same time, the negative electrode internal terminal and the negative electrode external terminal are joined to each other via the plated layer. In addition, a rough surface having a plurality of recessed portions is formed on the upper surface of the negative electrode external terminal having been stacked with the plated layer interposed therebetween, and a part of the plated layer penetrates into the recessed portions. Accordingly, a connecting portion having high strength and low resistance can be formed between the negative electrode internal terminal and the negative electrode external terminal.

公开(公告)号：US12166213B2

公开(公告)日：2024-12-10

申请号：US16365449

申请日：2019-03-26

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qiang Zheng ,  Qi Dang ,  Zhanzhao Fang ,  Qiang Tao

IPC: H01M4/66 ,  H01M10/0587 ,  H01M50/449 ,  H01M50/534 ,  H01M50/536

Abstract: The present application relates to an electrode sheet, a battery cell and a battery. The electrode sheet includes a current collector and a protective layer. The current collector includes a coated region provided with an active material layer and an uncoated region without being provided with the active material layer. The protective layer is provided on at least a part of a surface of the uncoated region, and has a porosity of 0% to 95%. For the electrode sheet according to the present application, by providing the current collector with the protective layer, the contact resistance may be increased when the electrode sheet is short-circuited, and the discharge power and the thermal runaway probability of the battery cell may be reduced when the battery cell is internally short-circuited, thereby improving the safety performance of the battery cell.

公开(公告)号：US20240356171A1

公开(公告)日：2024-10-24

申请号：US18758677

申请日：2024-06-28

Applicant: Ningde Amperex Technology Limited

Inventor： Fang Lv ,  Yi Zhao ,  Hua Wu

IPC: H01M50/533 ,  H01M4/66 ,  H01M4/70 ,  H01M50/534 ,  H01M50/536

CPC classification number: H01M50/533 ,  H01M4/667 ,  H01M4/70 ,  H01M50/534 ,  H01M50/536 ,  H01M2220/30

Abstract: A battery includes an electrode plate assembly. An electrode plate assembly includes an electrode plate and a conduction element. The electrode plate includes a current collector. The current collector includes a first conductive material layer, an insulating material layer, and a second conductive material layer. The current collector is provided with a through opening. The conduction element includes a first conduction part, a second conduction part, and a third conduction part. The first conduction part is disposed on a first side of the current collector and electrically connected to the first conductive material layer. The second conduction part is disposed on a second side of the current collector and electrically connected to the second conductive material layer. The third conduction part is disposed at the through opening and electrically connected to both the first conduction part and the second conduction part.

公开(公告)号：US20240258659A1

公开(公告)日：2024-08-01

申请号：US18437224

申请日：2024-02-08

Applicant: Millibatt, Inc.

Inventor： Guangyi Sun ,  Janet Hur ,  Cheolwoong Lim ,  Leland Smith

IPC: H01M50/54 ,  H01M4/02 ,  H01M4/04 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0583 ,  H01M50/109 ,  H01M50/403 ,  H01M50/411 ,  H01M50/417 ,  H01M50/463 ,  H01M50/534

CPC classification number: H01M50/54 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0583 ,  H01M50/109 ,  H01M50/403 ,  H01M50/411 ,  H01M50/417 ,  H01M50/463 ,  H01M50/534 ,  H01M2004/027

Abstract: A method includes, by a folding station: receiving an anode assembly including anode collectors connected by anode interconnects and coated with a separator; receiving a cathode assembly including cathode collectors connected by cathode interconnects; locating a first anode collector over a folding stage; locating a first cathode collector over the first anode collector to form a first battery cell between the first anode collector and the first cathode collector; folding a first anode interconnect to locate a second anode collector over the first cathode collector to form a second battery cell between the first cathode collector and the second anode collector; folding a first cathode interconnect to locate a second cathode collector over the second anode collector to form a third battery cell between the second anode collector and the second cathode collector; wetting the separator with solvated ions; and loading the anode and cathode assemblies into a battery housing.

公开(公告)号：US20240234975A1

公开(公告)日：2024-07-11

申请号：US18559148

申请日：2022-05-03

Applicant: LEYDENJAR TECHNOLOGIES B.V.

Inventor： Thijs Willem DUBBELINK ,  Arjen Peter DIDDEN ,  Thomas HOMEWOOD ,  Monique LAMHUT ,  Zhaolong LI ,  Dan LUO ,  Yiseop AHN

IPC: H01M50/536 ,  H01M4/38 ,  H01M50/534

CPC classification number: H01M50/536 ,  H01M4/386 ,  H01M50/534

Abstract: The present application discloses an electrode assembly, compositions and batteries comprising the electrode assembly, uses of the electrode assembly and a method for producing the electrode assembly comprising the steps of: a. providing at least a first composite electrode material comprising at least one silicon layer on a current collector material; and b. providing an electrode tab material in contact with the current collector material, to form an aligned electrode assembly stack; c. optionally, providing a composite electrode material comprising at least one silicon layer on a current collector material in contact with the current collector material of another composite electrode, to form an aligned electrode assembly stack; d. optionally, repeating step c at least one time; and e. applying ultrasonic energy to a portion of the aligned electrode assembly stack to form: i. a weld material; ii. a penetration weld through the electrode tab and optionally through the composite material; and/or iii. at least an attachment weld between the weld material and the composite material; thereby forming the electrode assembly.