公开(公告)号：US20250070179A1

公开(公告)日：2025-02-27

申请号：US18946969

申请日：2024-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Shaohua AI ,  Chengdong SUN ,  Yi ZHENG ,  Yu CHEN ,  Qi ZENG ,  Yuxi ZHANG ,  Xin ZHOU

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/0587

Abstract: The present application discloses an electrode slurry, comprising an electrode active material, a binder composition and a solvent; the binder composition comprises a thermally crosslinked polymer and a thermal crosslinking agent, wherein the thermally crosslinked polymer comprises one or more of an epoxy resin, an acrylic-capped prepolymer and an acrylate-capped prepolymer.

公开(公告)号：US20250062410A1

公开(公告)日：2025-02-20

申请号：US18937394

申请日：2024-11-05

Applicant: Ningde Amperex Technology Limited

Inventor： Kefei WANG ,  Qiao ZENG ,  Liangzhen XIAO ,  Fei WU

IPC: H01M10/0566 ,  H01M4/13 ,  H01M4/64 ,  H01M4/70 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

Abstract: An electrolyte including a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the weight percentage of the dinitrile compound is X, the weight percentage of the trinitrile compound is Y, and the weight percentage of the propyl propionate is Z, wherein, about 3 wt %

公开(公告)号：US20250054938A1

公开(公告)日：2025-02-13

申请号：US18636594

申请日：2024-04-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi UEDA ,  Shinji KOJIMA ,  Tomoko HIGO

IPC: H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/36 ,  H01M4/62

Abstract: A method of fabricating an electrode includes: fabricating a first electrode layer disposed on a current collector; and fabricating a second electrode layer disposed on the first electrode layer. The first electrode layer is formed by electrostatic deposition, wet deposition, or rolled film formation. The second electrode layer is formed by rolled film formation. When the first electrode layer is fabricated by rolled film formation, at least part of a surface of active material particles used in the rolled film formation is coated with a resin that is different from polytetrafluoroethylene.

公开(公告)号：US20250038362A1

公开(公告)日：2025-01-30

申请号：US18917876

申请日：2024-10-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： In Seop BYUN

IPC: H01M50/46 ,  H01M4/13 ,  H01M10/052 ,  H01M10/0587 ,  H01M50/105 ,  H01M50/531

Abstract: An electrode assembly includes: a first electrode plate having a first electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the first electrode uncoated portion; a second electrode plate having a second electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the second electrode uncoated portion; a separator between the first electrode plate and the second electrode plate; a tab cover tape attached to the one surfaces of the first electrode uncoated portion and the second electrode uncoated portion; an uncoated portion cover tape attached to each of the other surfaces of the first electrode uncoated portion and the second electrode uncoated portion; and an insulating tape attached onto the second electrode plate at a position corresponding to the first electrode uncoated portion.

公开(公告)号：US12206088B2

公开(公告)日：2025-01-21

申请号：US17296312

申请日：2019-10-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kouhei Tsuzuki ,  Akihiko Takada ,  Yuki Morikawa ,  Hirokazu Wada ,  Katsunori Yanagida

IPC: H01M4/13 ,  H01M4/02 ,  H01M4/62

Abstract: A negative electrode for a nonaqueous electrolyte secondary battery, said negative electrode comprising a negative-electrode current collector, and a negative-electrode active material layer provided upon the negative-electrode current collector, wherein the negative-electrode active material layer includes a negative-electrode active material and a styrene-butadiene rubber, and the glass transition temperature (Tg) of the styrene-butadiene rubber in an area that extends 10% in the thickness direction from the surface of the reverse side of the negative-electrode active material layer from the negative-electrode current collector is higher than that of the styrene-butadiene rubber in an area that extends 10% in the thickness direction from the surface of the negative-electrode current collector side of the negative-electrode active material layer.

公开(公告)号：US20250023111A1

公开(公告)日：2025-01-16

申请号：US18769254

申请日：2024-07-10

Applicant: Natron Energy, Inc.

Inventor： Colin Deane Wessells ,  Nicole J. Escorcia ,  Daniel Friebel ,  Wentao Song ,  Aniruddh Shrivastava ,  Ashenafi Damtew Mamuye

IPC: H01M10/24 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66 ,  H01M10/054

Abstract: A system and method for implementing and manufacturing a hierarchy system for use with a TMCCC-containing electrically-conductive structure (e.g., an electrode) as well as methods for use and manufacturing of such structures and electrochemical cells including these devices. Structures and methods include a coordination complex having LxMyNzTia1Va2Cra3Mna4Fea5Coa6Nia7Cua8Zna9Caa10Mga11[R(CN)6]b(H2O)c;. The method includes binding electrochemically active material to produce a hierarchical structure, the hierarchical structure having a plurality of primary crystallites having a size D1, the plurality of these primary crystallites agglomerated into a set of agglomerates each agglomerate having a size D2>D1.

公开(公告)号：US20250023036A1

公开(公告)日：2025-01-16

申请号：US18904542

申请日：2024-10-02

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Yan ZHOU ,  Li WANG ,  Yuli LI

IPC: H01M4/48 ,  C01B33/113 ,  H01M4/02 ,  H01M4/13 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

Abstract: A negative electrode material for a lithium battery and a lithium ion secondary battery including same are provided. The negative electrode material for a lithium battery includes a silicon monoxide satisfying, in terms of chromaticity, 30≤L≤50, 3≤a≤10, and 1.5≤b≤10, and preferably 35≤L≤45, 4≤a≤9, and 4≤b≤10, and having a total color difference ΔE of 39≤ΔE≤50 relative to black.

公开(公告)号：US12196651B2

公开(公告)日：2025-01-14

申请号：US16607526

申请日：2018-05-29

Applicant: LG Chem, Ltd.

Inventor： Jung Hoon Han

IPC: G01N15/08 ,  G01N1/30 ,  G01N23/207 ,  G01N23/223 ,  G01N23/2252 ,  H01B1/04 ,  H01M4/13 ,  H01M4/62

Abstract: The present invention provides a method for measuring a distribution of pores in an electrode for a secondary battery, which can easily measure a distribution of pores inside the electrode for a secondary battery.

公开(公告)号：US12191475B2

公开(公告)日：2025-01-07

申请号：US17933855

申请日：2022-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Tao Zhang ,  Jianfu He ,  Qian Liu ,  Xueyang Sun ,  Yonghuang Ye

IPC: H01M4/13 ,  H01M4/02

Abstract: An electrode assembly, secondary battery, battery module, battery pack and electrical device are provided. In some embodiments, the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, the positive electrode plate satisfies 0

公开(公告)号：US12183909B2

公开(公告)日：2024-12-31

申请号：US18107695

申请日：2023-02-09

Applicant: 24M Technologies, Inc.

Inventor： Raymond Zagars ,  Jeffrey Curhan ,  Tristan Doherty ,  Alexander H. Slocum

IPC: H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/36 ,  H01M10/04 ,  H01M10/0585 ,  H01M50/557 ,  H01M4/139

Abstract: Embodiments described herein relate generally to electrochemical cells having semi-solid electrodes that are coated on only one side of a current collector. In some embodiments, an electrochemical cell includes a semi-solid positive electrode coated on only one side of a positive current collector and a semi-solid negative electrode coated on only one side of a negative current collector. A separator is disposed between the semi-solid positive electrode and the semi-solid negative electrode. At least one of the semi-solid positive electrode and the semi-solid negative electrode can have a thickness of at least about 250 μm.