公开(公告)号：US20240162441A1

公开(公告)日：2024-05-16

申请号：US18504478

申请日：2023-11-08

Applicant: The Regents of the University of California

Inventor： Robert JONSON ,  Michael TUCKER

IPC: H01M4/60 ,  H01M4/38 ,  H01M4/62 ,  H01M12/02 ,  H01M4/02

CPC classification number: H01M4/60 ,  H01M4/382 ,  H01M4/625 ,  H01M12/02 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/622 ,  H01M2300/0077

Abstract: This disclosure provides systems, methods, and apparatus related to batteries with an organic cathode and a solid electrolyte. In one aspect, a device includes an anode, a cathode, and a separator disposed between the anode and the cathode. The anode comprises lithium. The cathode comprises a catholyte and an organic active material disposed therein. The separator comprises a solid-state electrolyte.

公开(公告)号：US20240162424A1

公开(公告)日：2024-05-16

申请号：US18535016

申请日：2023-12-11

Applicant: Sila Nanotechnologies, Inc.

Inventor： Gleb YUSHIN ,  Bogdan ZDYRKO ,  Igor LUZINOV ,  Vojtech SVOBODA ,  Alexander Thomas JACOBS ,  Eugene Michael BERDICHEVSKY ,  Hyea KIM

IPC: H01M4/36 ,  H01M4/136 ,  H01M4/38 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/136 ,  H01M4/38 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M4/0421

Abstract: A battery electrode composition is provided comprising core-shell composites. Each of the composites may comprise a core and a multi-functional shell.

公开(公告)号：US20240162422A1

公开(公告)日：2024-05-16

申请号：US18284234

申请日：2022-12-26

Applicant: LG Energy Solution, Ltd.

Inventor： Kuniko Chihara ,  Keiko Matsubara

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/131 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01G53/50 ,  H01M4/131 ,  H01M4/388 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  C01P2004/80 ,  C01P2006/40 ,  H01M2004/028

Abstract: Provided are a positive electrode active material for a lithium-ion secondary battery having excellent capacity characteristics and electrode resistance characteristics, a positive electrode active material slurry, a positive electrode, a lithium-ion secondary battery and a method for preparing a positive electrode active material. The positive electrode active material includes a core containing a lithium transition metal oxide, and a coating portion at least partially covering the surface of the core and containing iodine and boron.

公开(公告)号：US20240158646A1

公开(公告)日：2024-05-16

申请号：US18561503

申请日：2022-05-17

Applicant: KANSAI PAINT CO., LTD.

Inventor： Koji ENDO ,  Masanao HASHIMURA ,  Takashi KITAMURA ,  Yoshiyuki YUKAWA

IPC: C09D5/24 ,  C08K3/04 ,  C09D7/40 ,  C09D7/45 ,  C09D7/61 ,  C09D7/65 ,  C09D7/80 ,  C09D129/04 ,  H01M4/04 ,  H01M4/62

CPC classification number: C09D5/24 ,  C09D7/45 ,  C09D7/61 ,  C09D7/65 ,  C09D7/67 ,  C09D7/80 ,  C09D129/04 ,  H01M4/0404 ,  H01M4/625 ,  C08K3/041 ,  C08K2201/001 ,  C08K2201/011

Abstract: The present invention relates to a solution to provide a conductive pigment paste that exhibits excellent pigment dispersibility and storage stability even as a paste with a high pigment concentration and/or high viscosity, and can be used to form a coating film excelling in conductivity and other properties. The present invention provides a method for manufacturing a conductive pigment paste. The method includes dispersing a paste containing a pigment dispersion resin (A), a conductive pigment (B), and a solvent (C) using at least one type of disperser selected from the group consisting of a bead mill, a homogenizer, an ultrasonic disperser, a kneader, an extruder, and a planetary mixer. The pigment dispersion resin (A) includes at least one polar functional group selected from the group consisting of an amide group, an imide group, an ether group, a hydroxyl group, a carboxyl group, a sulfonate group, a phosphate group, a silanol group, and an amino group, and the concentration of the polar functional group in the pigment dispersion resin (A) is from 9 to 23 mmol/g. The conductive pigment (B) contains carbon nanotubes (B-1) and/or a conductive carbon (B-2) having an average primary particle size from 10 to 80 nm. A solubility parameter δA of the pigment dispersion resin (A) and a solubility parameter δC of the solvent (C) satisfy a relationship of |δA−δC|

公开(公告)号：US20240154127A1

公开(公告)日：2024-05-09

申请号：US18385685

申请日：2023-10-31

Applicant: LG Energy Solution, Ltd.

Inventor： Geum Jae Han ,  O Jong Kwon ,  Kwang Jin Kim ,  Ki Woong Kim ,  In Gu An ,  Jung Hun Choi ,  Da Young Lee ,  Jin Su Sung ,  Jeong Hwa Park

IPC: H01M4/62 ,  H01M4/131 ,  H01M4/36 ,  H01M4/58

CPC classification number: H01M4/623 ,  H01M4/131 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M2004/028

Abstract: A positive electrode including a positive electrode active material layer disposed on at least one surface of a positive electrode current collector, the positive electrode active material layer including a lithium transition metal phosphate, a fluorine-based binder, and a conductive material. The lithium transition metal phosphate includes a carbon coating layer formed on a surface thereof, and a ratio (B/A) of a total weight (B) of the fluorine-based binder to a total weight (A) of carbon of the conductive material and the lithium transition metal phosphate in the positive electrode active material layer is 0.7 to 1.7.

公开(公告)号：US20240154110A1

公开(公告)日：2024-05-09

申请号：US18457074

申请日：2023-08-28

Applicant: SK INNOVATION CO., LTD. ,  SK ON CO., LTD.

Inventor： Yong Seok LEE ,  Jeong Hoon JEUN ,  Jae Ram KIM ,  Jae Yun MIN ,  Ki Joo EOM ,  Myung Ro LEE ,  Hyun Joong JANG ,  Je Nam CHOI

IPC: H01M4/525 ,  H01M4/62 ,  H01M10/052

CPC classification number: H01M4/525 ,  H01M4/625 ,  H01M4/626 ,  H01M10/052 ,  H01M2004/028

Abstract: Cathodes and lithium secondary batteries including the cathodes are disclosed. In some implementations, a cathode may include a cathode current collector and a cathode active material layer disposed on the cathode current collector and including cathode active material particles such that the cathode active material layer satisfies a specific equation. The cathode active material particles may include lithium metal oxide particles that include nickel, and may have a mole fraction of cobalt of 0.02 or less with respect to all elements except for lithium and oxygen.

公开(公告)号：US20240145698A1

公开(公告)日：2024-05-02

申请号：US17978754

申请日：2022-11-01

Applicant: Nissan North America, Inc. ,  Nissan Motor Co., Ltd.

Inventor： Hideyuki Komatsu ,  Shigemasa Kuwata ,  Balachandran Gadaguntla Radhakrishnan ,  Kazuyuki Sakamoto

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M4/525 ,  H01M4/0407 ,  H01M4/382 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021

Abstract: An all-solid-state battery (ASSB) cell has an anode comprising lithium metal, a solid electrolyte, and a cathode composite layer comprising cathode active material particles. Each cathode active material particle has a core of a first lithium transition metal oxide and a surface layer of a second lithium transition metal oxide, the second lithium transition metal oxide being different from the first lithium transition metal oxide. The second lithium transition metal oxide has a composition of LiNixMnyCozO2, wherein 0.40≤x≥0.82, 0.0≤y≥0.50, and 0.0≤z≥0.60 and x+y+z=1.

公开(公告)号：US20240145685A1

公开(公告)日：2024-05-02

申请号：US18399235

申请日：2023-12-28

Applicant: Zhuhai CosMX Battery Co., Ltd.

Inventor： Fan YANG ,  Yanyun ZHAI ,  Jian ZHANG ,  Kongyan XIE ,  Fen LIU ,  Jinshuai YANG ,  Chong PENG

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/136 ,  H01M4/62 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/136 ,  H01M4/623 ,  H01M4/625 ,  H01M10/4235 ,  H01M2004/021

Abstract: This application provides an electrode sheet and an electrochemical device. The electrode sheet includes a current collector and a functional coating located on at least one surface of the current collector. The functional coating includes a first coating, a second coating and an active material layer that are sequentially stacked on a surface of the current collector. The first coating includes a conductive agent, a binder and a first functional filler, and the second coating includes a conductive agent, a binder and a second functional filler. A mass ratio of the binder in the first coating to the first coating is a1, a mass ratio of the binder in the second coating to the second coating is a2, and a mass ratio of the binder in the active material layer to the active material layer is a3, and a1>a2>a3.

公开(公告)号：US11973228B2

公开(公告)日：2024-04-30

申请号：US17529163

申请日：2021-11-17

Applicant: Prime Planet Energy & Solutions, Inc.

Inventor： Akira Kohyama

IPC: H01M4/62 ,  H01M4/38 ,  H01M4/44 ,  H01M4/46 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/02

CPC classification number: H01M4/625 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/44 ,  H01M4/463 ,  H01M10/052 ,  H01M10/0567 ,  H01M2004/027 ,  H01M2300/0025

Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The negative electrode includes a negative electrode composite material layer. The negative electrode composite material layer includes a negative electrode active material and a carbon nanotube. The electrolyte solution includes a solvent, a supporting electrolyte, and a cationic surfactant. The cationic surfactant includes a quaternary ammonium salt.

公开(公告)号：US11973220B2

公开(公告)日：2024-04-30

申请号：US18335675

申请日：2023-06-15

Applicant: Echion Technologies Limited

Inventor： Alexander Groombridge ,  Zhihong Cai ,  Daniel Martin ,  Prince Babbar

IPC: H01M4/485 ,  C01G23/04 ,  C01G33/00 ,  C01G37/14 ,  C01G49/00 ,  H01M4/04 ,  H01M4/131 ,  H01M4/36 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/02

CPC classification number: H01M4/485 ,  C01G23/04 ,  C01G33/00 ,  C01G33/006 ,  C01G37/14 ,  C01G49/0063 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/583 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/054 ,  C01P2002/52 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/027

Abstract: The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM22-aM3bNb34-bO87-c-dQd.