公开(公告)号：US20240154091A1

公开(公告)日：2024-05-09

申请号：US18418290

申请日：2024-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAKI HIRASE ,  HIROKI YABE

IPC: H01M4/134 ,  H01M4/02 ,  H01M4/1395 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/134 ,  H01M4/1395 ,  H01M4/625 ,  H01M2004/021 ,  H01M2004/027 ,  H01M10/0562 ,  H01M2300/0068

Abstract: A negative electrode material according to the present disclosure includes a plurality of composite particles including an active material containing silicon, a first solid electrolyte, and a first conductive material and a second solid electrolyte, wherein the second solid electrolyte is present between the composite particle and the composite particle.

公开(公告)号：US20240128432A1

公开(公告)日：2024-04-18

申请号：US18532918

申请日：2023-12-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuxi ZHANG ,  Shaohua AI ,  Xin ZHOU ,  Yu CHEN ,  Qi ZENG

IPC: H01M4/04 ,  C23C14/16 ,  C23C14/24 ,  C23C14/58 ,  H01M4/1395 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/0423 ,  C23C14/16 ,  C23C14/24 ,  C23C14/5806 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1395 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present application provides a method for preparing a prelithiated positive electrode current collector, the method comprising the following steps: gasifying a lithium source in an evaporation chamber filled with a protective gas; enabling an aluminum foil layer to pass through the evaporation chamber and depositing the metal lithium on a surface of the aluminum foil layer by means of vapor deposition; and transferring the aluminum foil layer deposited with the metal lithium to an annealing chamber filled with a protective gas and performing high-temperature annealing to form a lithium-aluminum alloy layer on the surface of the aluminum foil layer.

公开(公告)号：US20240113320A1

公开(公告)日：2024-04-04

申请号：US18345551

申请日：2023-06-30

Applicant: Sion Power Corporation

Inventor： Chariclea Scordilis-Kelley ,  John D. Affinito ,  Lowell D. Jones ,  Yuriy V. Mikhaylik ,  Igor P. Kovalev ,  William F. Wilkening ,  Christopher T.S. Campbell ,  John A. Martens

IPC: H01M10/052 ,  H01M4/133 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/58 ,  H01M4/587 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/058

CPC classification number: H01M10/052 ,  H01M4/133 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/581 ,  H01M4/587 ,  H01M10/0468 ,  H01M10/0481 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/40

Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance. The application of force to the electrochemical cell has been found, in accordance with the invention, to reduce such behavior and to improve the cycling lifetime and/or performance of the cell.

公开(公告)号：US20240113302A1

公开(公告)日：2024-04-04

申请号：US18480090

申请日：2023-10-03

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Inhyuk SON ,  Mijong KIM ,  Jumyeung LEE ,  Minwoo LIM ,  Junghyun CHOI ,  Sungsoo HAN

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M4/625 ,  H01M4/02 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/364 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2004/027

Abstract: A porous silicon composite includes: a porous core including a porous silicon composite secondary particle; and a shell disposed on a surface of the porous core and surrounding the porous core, wherein the porous silicon composite secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a first graphene on a surface of the silicon suboxide, wherein the shell include a second graphene, and at least one of the first graphene and the second graphene includes at least one element selected from nitrogen, phosphorus, and sulfur.

公开(公告)号：US20240097103A1

公开(公告)日：2024-03-21

申请号：US18317572

申请日：2023-05-15

Applicant: Zhejiang University

Inventor： Huilin Pan ,  Ning Dong ,  Ziyang Cai

IPC: H01M4/134 ,  H01M4/1395 ,  H01M4/62 ,  H01M10/38

CPC classification number: H01M4/134 ,  H01M4/1395 ,  H01M4/623 ,  H01M4/626 ,  H01M10/38 ,  H01M2004/027

Abstract: A surface-modified composite zinc-based negative electrode, a preparation method thereof, and a battery are provided. The composite zinc-based negative electrode includes a zinc matrix material, a nano inorganic metal/alloy modified layer, and an organic polymer protective layer. The nano inorganic metal/alloy modified layer can increase hydrogen evolution overpotential of the composite zinc-based negative electrode, inhibit the generation of hydrogen on the negative electrode surface and occurrence of side reactions. The organic polymer protective layer can enhance the zinc ion concentration and deposition uniformity at the electrode interface, and improve the dendrite problem caused by uneven zinc deposition-dissolution during the charging and discharging process. The application of the modified composite zinc-based negative electrode in aqueous zinc-based batteries can improve their cycling stability under high current and high utilization conditions and show good rate performance and cycling life. The method has simple preparation process, low cost, and is suitable for large-scale production.

公开(公告)号：US11929497B2

公开(公告)日：2024-03-12

申请号：US16671487

申请日：2019-11-01

Applicant: LG CHEM, LTD.

Inventor： Dong Hyuk Kim ,  Eun Kyung Kim ,  Yong Ju Lee ,  Rae Hwan Jo ,  Jung Hyun Choi

IPC: H01M4/583 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/386 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/485 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/027 ,  H01M2004/028

Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5

公开(公告)号：US11923532B2

公开(公告)日：2024-03-05

申请号：US16605720

申请日：2017-04-17

Applicant: Robert Bosch GmbH ,  Rongrong Jiang

Inventor： Rongrong Jiang ,  Jingjun Zhang ,  Yuqian Dou ,  Lei Wang ,  Chuanling Li ,  Yunhua Chen ,  Xiaogang Hao ,  Qiang Lu

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M4/366 ,  H01M4/0421 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/386 ,  H01M4/628 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2300/0068

Abstract: A pre-lithiated silicon-based anode includes a silicon-based anode, lithium disposed on a surface or in an interior of the silicon-based anode, and a protective coating on the surface of the silicon-based anode. The pre-lithiated silicon-based anode allows subsequent processing to be performed safely in the atmosphere.

公开(公告)号：US11916217B2

公开(公告)日：2024-02-27

申请号：US17313541

申请日：2021-05-06

Applicant: Nanoscale Components, Inc.

Inventor： Robert W. Grant ,  Matthew Sweetland ,  Asela Maha Acharige

IPC: H01M4/04 ,  H01M4/1393 ,  H01M4/1395 ,  C25D5/02 ,  C25D5/18 ,  C25D5/00 ,  C25D7/06 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/0452 ,  C25D5/022 ,  C25D5/18 ,  C25D5/611 ,  C25D7/0642 ,  C25D7/0657 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/052 ,  H01M2004/021

Abstract: The present invention relates to processes that may be used singly or in combination to prevent lithium (or alkali metal) plating or dendrite buildup on bare substrate areas or edges of electrode rolls during alkaliation of a battery or electrochemical cell anode composed of a conductive substrate and coatings, in which the electrode rolls may be coated on one or both sides and may have exposed substrate on edges, or on continuous or discontinuous portions of either or both substrate surfaces.

公开(公告)号：US20240063363A1

公开(公告)日：2024-02-22

申请号：US18498797

申请日：2023-10-31

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ohbyong CHAE ,  Yoonah KANG ,  Junhyuk SONG ,  Eun Kyung KIM ,  Sangwook WOO

IPC: H01M4/04 ,  B05D1/32 ,  C23C14/04 ,  C23C16/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/66 ,  H01M10/04 ,  H01M10/052 ,  H01M10/058

CPC classification number: H01M4/0421 ,  B05D1/32 ,  C23C14/04 ,  C23C16/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/661 ,  H01M10/04 ,  H01M10/052 ,  H01M10/058 ,  H01M2004/021

Abstract: A method for manufacturing a negative electrode for a lithium secondary battery including a patterned lithium metal that homogenizes the electron distribution in the lithium electrode and prevents the growth of the lithium dendrites when driving the lithium secondary battery.

公开(公告)号：US20240047640A1

公开(公告)日：2024-02-08

申请号：US18217695

申请日：2023-07-03

Applicant: ENEVATE CORPORATION

Inventor： Benjamin Yong Park ,  Ian R. Browne ,  Stephen W. Schank ,  Steve Pierce

IPC: H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/62 ,  H01M4/66

CPC classification number: H01M4/0435 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/625 ,  H01M4/661 ,  H01M4/667 ,  H01M4/622 ,  H01M4/0471 ,  H01M4/621 ,  Y10T156/10 ,  H01M10/0525

Abstract: Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.