公开(公告)号：US20240372135A1

公开(公告)日：2024-11-07

申请号：US18310676

申请日：2023-05-02

Applicant: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.

Inventor： Shingo OTA ,  Nikhilendra SINGH

IPC: H01M10/0562 ,  H01M4/1315 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/056

Abstract: A metal ion conductive composition containing an intimate mixture of particles of Fe(1-a)MaO(1-z)YzX and a metal ion salt is provided. In the formula M is a cation, Y is an anion selected from the group consisting of N, S and Se, X is at least one halide selected from the group consisting of F, Cl, Br and I, a is a number from 0 to 0.75 and z is a number from 0 to 0.75 The particle size of the Fe(1-a)MaO(1-z)YzX particles is 500 nm or less and the metal ion salt contains a metal ion selected from alkali metals, alkaline earth metals, Zinc ion and Aluminum ion. A solid-state metal ion battery containing the metal ion conductive composition is described and in one embodiment, a solid-state lithium-ion battery containing the metal ion conductive composition is disclosed.

公开(公告)号：US20240355997A1

公开(公告)日：2024-10-24

申请号：US18647040

申请日：2024-04-26

Applicant: UT-BATTELLE, LLC

Inventor： ZHIJIA DU ,  CHRISTOPHER JAMES JANKE ,  JIANLIN LI ,  DAVID L. WOOD, III ,  CLAUS DANIEL

IPC: H01M4/04 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/0419 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/621 ,  H01M2004/028

Abstract: A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.

公开(公告)号：US12074315B2

公开(公告)日：2024-08-27

申请号：US17057062

申请日：2019-09-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun Zeng ,  Chengdu Liang ,  Changliang Sheng ,  Huafeng Huang ,  Qisen Huang

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01G53/50 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: This application discloses a positive-electrode plate, a lithium-ion battery equipped with the positive-electrode plate, 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 an electrolyte. The positive-electrode plate includes a positive-electrode current collector and a positive-electrode active substance layer that is disposed on a surface of the positive-electrode current collector and that includes a positive-electrode active substance. An inorganic dielectric layer containing no binder is disposed on a surface of the positive-electrode active substance layer, and a resistance of the positive-electrode plate is not higher than 8 ohms.

公开(公告)号：US20240266516A1

公开(公告)日：2024-08-08

申请号：US18616052

申请日：2024-03-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingyan Ma ,  Yingjie Guan ,  Yuzhen Zhao ,  Yan Wen ,  Qisen Huang

IPC: H01M4/36 ,  C01B25/45 ,  C01B33/32 ,  H01M4/02 ,  H01M4/1315 ,  H01M4/137 ,  H01M4/505 ,  H01M4/60

CPC classification number: H01M4/366 ,  C01B25/45 ,  C01B33/32 ,  H01M4/1315 ,  H01M4/137 ,  H01M4/505 ,  H01M4/604 ,  H01M4/608 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2006/40 ,  H01M2004/028

Abstract: A positive electrode active material, a method for preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same are provided. The positive electrode active material has a core-shell structure, comprising a core, a first cladding layer covering the core, a second cladding layer covering the first cladding layer, wherein the core has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, the first cladding layer comprises a first polymer containing an electron withdrawing group, the second cladding layer comprises a second polymer, and wherein the second polymer comprises one or more of plant polysaccharides, marine polysaccharides and the derivatives thereof. The positive electrode active material of the present application enables a secondary battery to have a relatively high energy density, while further having a significantly improved rate performance, cycling performance and/or high-temperature stability.

公开(公告)号：US11961958B2

公开(公告)日：2024-04-16

申请号：US16440961

申请日：2019-06-13

Applicant: International Business Machines Corporation

Inventor： John Collins ,  Bucknell C. Webb ,  Paul S. Andry ,  Teodor Krassimirov Todorov ,  Devendra K. Sadana

IPC: H01M10/0525 ,  C08K3/04 ,  C08K5/315 ,  C08L67/04 ,  C09J179/02 ,  H01M4/02 ,  H01M4/1315 ,  H01M4/505 ,  H01M10/0565

CPC classification number: H01M10/0525 ,  C08K3/04 ,  C08K5/315 ,  C08L67/04 ,  C09J179/02 ,  H01M4/1315 ,  H01M4/505 ,  H01M10/0565 ,  C08K2201/001 ,  C08K2201/005 ,  C08L2203/20 ,  H01M2004/021 ,  H01M2300/0082

Abstract: A composition includes an electrode made of Lithium Manganese Oxyfluoride (LMOF). A single layer separator adheres to a surface of the electrode, is a dielectric that is conductive for Lithium ions but not electrons, and has top and bottom sides. A solid polymer electrolyte (SPE) saturates the electrode so that the LMOF is between 55 percent and 85 percent by mass of a composition of the LMOF electrode and the SPE is between 7.5 percent and 20 percent by mass of the composition of the LMOF electrode. The SPE saturates the separator so that the SPE resides both on the separator top and bottom sides so that the SPE residing on the separator top side contacts the surface. The LMOF exhibits X-Ray Diffraction spectrum peaks between twenty-two and twenty-four 2-theta degrees, between forty-eight and fifty 2-theta degrees, between fifty-four and fifty-six 2-theta degrees, and between fifty-six and fifty-eight 2-theta degrees.

公开(公告)号：US20240088439A1

公开(公告)日：2024-03-14

申请号：US18233773

申请日：2023-08-14

Applicant: Samsung SDI Co., Ltd.

Inventor： Jinhyeok Lim ,  Yunhee Kim ,  Wonseok Cho ,  Sujeong Koh ,  Jinah Seo ,  Erang Cho

IPC: H01M10/0567 ,  H01M4/1315 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M4/1315 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the electrolyte are disclosed. The electrolyte may include a lithium salt, an organic solvent, and a compound represented by Formula 1:




where, in Formula 1, A is oxygen or sulfur.

公开(公告)号：US11884552B2

公开(公告)日：2024-01-30

申请号：US17502491

申请日：2021-10-15

Applicant: The Regents of The University of California

Inventor： Juhyeon Ahn ,  Dongchang Chen ,  Guoying Chen

IPC: H01M4/04 ,  H01M4/1315 ,  H01M4/13915 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  C01D15/04 ,  C01G33/00 ,  C01G45/00 ,  C01G23/00 ,  H01M10/0525 ,  H01M4/02

CPC classification number: C01D15/04 ,  C01G23/002 ,  C01G33/006 ,  C01G45/006 ,  H01M4/0471 ,  H01M4/1315 ,  H01M4/13915 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  C01P2002/77 ,  C01P2006/40 ,  H01M2004/028

Abstract: This disclosure provides systems, methods, and apparatus related to lithium metal oxyfluorides. In one aspect, a method for manufacturing a lithium metal oxyfluoride having a general formula Li1+x(MM′)zO2-yFy, with 0.6≤z≤0.95, 0

公开(公告)号：US11870056B2

公开(公告)日：2024-01-09

申请号：US16996515

申请日：2020-08-18

Applicant: WILDCAT DISCOVERY TECHNOLOGIES, INC

Inventor： Tanghong Yi ,  Bin Li

IPC: H01M4/13915 ,  C01G45/00 ,  H01M4/04 ,  H01M4/1315 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/02

CPC classification number: H01M4/13915 ,  C01G45/006 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1315 ,  H01M4/485 ,  H01M10/058 ,  H01M10/0525 ,  C01P2004/02 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

Abstract: A method for forming a cathode includes milling a suspension of precursors via a micromedia mill to form a mixture of primary particles in the suspension. The precursors include one or more metal compounds. The method includes spray drying the suspension after the milling to form secondary particles. The secondary particles are agglomerations of the primary particles. The method also includes annealing the secondary particles to form a disordered rocksalt powder.

公开(公告)号：US20230369577A1

公开(公告)日：2023-11-16

申请号：US18029137

申请日：2021-12-24

Applicant: LG Energy Solution, Ltd.

Inventor： Kuniko Chihara ,  Keiko Matsubara

IPC: H01M4/38 ,  H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/1315 ,  H01M10/0525 ,  C01G53/00

CPC classification number: H01M4/388 ,  H01M4/525 ,  H01M4/505 ,  H01M4/366 ,  H01M4/1315 ,  H01M10/0525 ,  C01G53/50 ,  H01M2004/028

Abstract: A positive electrode active material, a method of making the same, and a lithium-ion secondary battery including the same are disclosed herein. A lithium-ion secondary battery including the positive electrode active material can have excellent cycle characteristics at high temperature. In some embodiments, a positive electrode active material a lithium transition metal oxide, and an iodine-containing material at least partially covering the lithium transition metal oxide, where the iodine-containing material contains iodine having an oxidation number of +3 to +7.

公开(公告)号：US20230343928A1

公开(公告)日：2023-10-26

申请号：US17909508

申请日：2021-03-05

Applicant: Wayne State University

Inventor： Da Deng ,  Venkata Rohit Punyapu

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/50 ,  H01M4/1315 ,  H01M4/13915 ,  H01M10/0585 ,  H01M4/52 ,  H01M4/38

CPC classification number: H01M4/364 ,  H01M4/1315 ,  H01M4/13915 ,  H01M4/366 ,  H01M4/382 ,  H01M4/502 ,  H01M4/523 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/028

Abstract: A lithium-ion battery may include a lithium-free cathode, a lithiated anode, and a separator/electrolyte between the lithium-free cathode and the lithiated anode. The lithium-free cathode may include FeOF and MnO2. The FeOF may be in the form of nanorods, and the MnO2 may be in the form of monolayer nanosheets. The FeOF nanorods may be sandwiched or wrapped by the monolayer MnO2 nanosheets.