公开(公告)号：US20240213454A1

公开(公告)日：2024-06-27

申请号：US18469416

申请日：2023-09-18

申请人： SAMSUNG SDI CO., LTD.

发明人： Taeil LEE ,  Won-Gi AHN ,  Juhye BAE ,  Gwangwon PARK ,  Min-young JEONG

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/587

CPC分类号： H01M4/366 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/587

摘要： An electrode plate includes an electrode current collector; a first active material layer in a pattern at the electrode current collector; and a second active material layer covering first active material layer and a portion of the electrode current collector. The electrode plate for a rechargeable battery may improve an impregnation characteristic of an electrolyte by inducing bending in a width direction of the electrode plate to improve rate capability.

公开(公告)号：US20240213452A1

公开(公告)日：2024-06-27

申请号：US18242945

申请日：2023-09-06

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

发明人： Seon Hwa Kim ,  Hong Suk Choi ,  Hee Soo Kang ,  Jae Min Lim ,  Sang Wan Kim

IPC分类号： H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587

CPC分类号： H01M4/366 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587 ,  H01M2004/021

摘要： Disclosed is an all-solid-state battery, which includes a plurality of intermediate layers including a first layer including a carbon material and a second layer including a metal and disposed on at least one surface of the first layer, and in which a lithium precipitation layer in which lithium is electrodeposited is located at the interface of an anode current collector at 40° C. or less, thereby improving volume expansion of the all-solid-state battery and maximizing battery performance.

公开(公告)号：US12021244B2

公开(公告)日：2024-06-25

申请号：US17110534

申请日：2020-12-03

申请人： Samsung Electronics Co., Ltd.

发明人： Sangbok Ma ,  Mokwon Kim ,  Donghwa Seo

IPC分类号： H01M4/86 ,  H01M4/02 ,  H01M4/38 ,  H01M12/08

CPC分类号： H01M4/8663 ,  H01M4/382 ,  H01M4/8605 ,  H01M12/08 ,  H01M2004/027 ,  H01M2004/8689

摘要： A cathode for an air battery includes a porous conductive material; and a base-resistant compound on a surface of the porous conductive material, the base-resistant compound having a 0 or positive Gibbs free energy at 2 V to 4.5 V vs Li/Li+ at a pH of about 7 to about 14.

公开(公告)号：US12021239B2

公开(公告)日：2024-06-25

申请号：US16889905

申请日：2020-06-02

申请人： SAMSUNG SDI CO., LTD.

发明人： Seyoung Oh ,  Dongwan Seo

IPC分类号： H01M4/62 ,  C08G69/00 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/622 ,  C08G69/00 ,  H01M4/386 ,  H01M4/623 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027

摘要： A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode, the negative electrode including a negative active material layer including a silicon (Si)-containing negative active material and a binder, wherein the binder includes a copolymer including an amide group-containing first repeating unit, a cyano group-containing second repeating unit, and a sulfonate group-containing third repeating unit.

公开(公告)号：US12021227B2

公开(公告)日：2024-06-25

申请号：US17416162

申请日：2019-12-21

申请人： Nexeon Limited

发明人： Charles A. Mason ,  Richard Gregory Taylor ,  Christopher Michael Friend

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

CPC分类号： H01M4/366 ,  H01M4/386 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/025

摘要： The invention relates to a particulate material comprising a plurality of composite particles, wherein the composite particles comprise: (a) a porous carbon framework comprising micropores and mesopores having a total pore volume of at least 0.6 cm3/g, where the volume fraction of micropores is in the range from 0.1 to 0.9 and the volume fraction of pores having a pore diameter no more than 20 nm is at least 0.75, and the porous carbon framework has a D50 particle size of less than 20 μm; (b) silicon located within the micropores and/or mesopores of the porous carbon framework in a defined amount relative to the volume of the micropores and/or mesopores.

公开(公告)号：US12021224B2

公开(公告)日：2024-06-25

申请号：US17265346

申请日：2019-11-18

申请人： LG CHEM, LTD.

发明人： Changhoon Lee ,  Doo Kyung Yang ,  Intae Park

IPC分类号： H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M10/056 ,  H01M4/02

CPC分类号： H01M4/362 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/056 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2300/0037

摘要： A lithium-sulfur secondary battery is disclosed, and in particular, a lithium-sulfur secondary battery in which a positive electrode includes a sulfur-carbon composite including a microporous carbon material and sulfur, or a conductive additive including a carbon material having high specific surface area. By specifying conditions of the positive electrode and an electrolyte liquid, energy density may be enhanced compared to existing lithium-sulfur secondary batteries.

公开(公告)号：US12021202B2

公开(公告)日：2024-06-25

申请号：US17095698

申请日：2020-11-11

申请人： Hulico LLC

发明人： Steven E. Sloop ,  Lauren E. Crandon

IPC分类号： H01M10/42 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/54

CPC分类号： H01M10/4242 ,  H01M4/382 ,  H01M10/0525 ,  H01M10/4235 ,  H01M10/54 ,  Y02W30/84

摘要： Examples are disclosed of methods to deactivate a lithium-containing battery. One example provides a method for discharging a lithium-containing battery, the method comprising adding the lithium-containing battery to a vessel, adding an oxidizing fluid to the vessel, adding carbon dioxide to the vessel, pressurizing the vessel, heating the vessel to form lithium carbonate within the lithium-containing battery, reducing heat and pressure in the vessel, and removing the battery from the vessel.

公开(公告)号：US12021186B2

公开(公告)日：2024-06-25

申请号：US17225356

申请日：2021-04-08

申请人： The Hong Kong University of Science and Technology

发明人： Ping Gao ,  Minhua Shao ,  Jiadong Li ,  Qiao Gu ,  Jin Li

IPC分类号： H01M10/0562 ,  H01M4/38 ,  H01M4/66

CPC分类号： H01M10/0562 ,  H01M4/382 ,  H01M4/662 ,  H01M2300/0082 ,  H01M2300/0088

摘要： An all-solid-state battery system having a solid-state electrolyte composite is provided. The solid-state electrolyte composite includes a porous framework providing support and mechanical strength for the solid-state electrolyte composite and a plurality of ionic conductors filling voids of the porous framework for maximizing ionic conductance of the solid-state electrolyte composite. The porous framework may be made of ultra-high-molecular-weight polyethylene (UHMWPE) polymers and the plurality of ionic conductors may be made of poly(ethylene oxide)-LiN(SO2CF3)2 (PEO-LiTFSI) polymers. The all-solid-state battery system includes battery cells each including a cathode current collector, a cathode disposed beneath and connected to the cathode current collector, the solid-state electrolyte composite disposed beneath and connected to the cathode, an anode disposed beneath and connected to the solid-state electrolyte composite, and an anode current collector disposed beneath and connected to the anode.

公开(公告)号：US12015139B2

公开(公告)日：2024-06-18

申请号：US17430362

申请日：2020-02-21

申请人： SANYO Electric Co., Ltd. ,  Panasonic Corporation

发明人： Syunsuke Natsumeda ,  Takuya Shinomiya ,  Takamitsu Tashita ,  Fumikazu Mizukoshi

IPC分类号： H01M4/133 ,  H01M4/02 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62

CPC分类号： H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/587 ,  H01M2004/021 ,  H01M2004/027 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/625

摘要： The purpose of the present disclosure is to provide a non-aqueous electrolyte secondary battery having excellent low-temperature properties. A non-aqueous electrolyte secondary battery according to an aspect of the present disclosure comprises a negative electrode having: a negative electrode current collector; and a negative electrode active material layer disposed on the negative electrode current collector, wherein the negative electrode active material layer contains graphite particles A and graphite particles B as a negative electrode active material. The internal porosity of graphite particles A is 8-20%, and the internal porosity of graphite particles B is 5% or less. When the negative electrode active material layer is bisected in the thickness direction into a negative electrode current collector-side first half region and an outer surface-side second half region, the amount of graphite particles A in the second half region is greater than in the first half region.

公开(公告)号：US20240194942A1

公开(公告)日：2024-06-13

申请号：US18584413

申请日：2024-02-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Mitsuru TATEISHI ,  Hajime Hasegawa

IPC分类号： H01M10/0562 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525

CPC分类号： H01M10/0562 ,  H01M4/0402 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028

摘要： A lithium ion battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive electrode active material. The negative electrode includes a negative electrode active material and a specific metal. A void is located inside the negative electrode active material. The specific metal adheres to an outside surface and an inside surface of the negative electrode active material. The specific metal includes a dissolution potential and a deposition potential. The dissolution potential is lower than a potential at which the positive electrode active material releases Li ions. The deposition potential is higher than a potential at which the negative electrode active material stores the Li ions.