公开(公告)号：US12113194B2

公开(公告)日：2024-10-08

申请号：US17610096

申请日：2020-05-07

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Oh Byong Chae ,  Ye Ri Kim

IPC: H01M4/04 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/587 ,  H01M10/0525

CPC classification number: H01M4/0459 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/587 ,  H01M10/0525

Abstract: A method of producing a negative electrode, which includes: providing a negative electrode roll on which a negative electrode structure is wound, the negative electrode structure includes a negative electrode current collector and a negative electrode active material layer on at least one surface of the negative electrode current collector; providing a pre-lithiation bath containing a pre-lithiation solution, which is sequentially divided into an impregnation section, a pre-lithiation section, and an aging section; impregnating the negative electrode structure with the pre-lithiation solution while unwinding the negative electrode structure from the negative electrode roll and moving the same through the sections. The pre-lithiation is performed by disposing a lithium metal counter electrode, which is spaced apart from the negative electrode structure and impregnated with the pre-lithiation solution, in the pre-lithiation section and electrochemically charging the negative electrode structure.

公开(公告)号：US20240332494A1

公开(公告)日：2024-10-03

申请号：US18291116

申请日：2023-01-25

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： ILHA LEE ,  Mun Kyu JOO ,  Sarah KIM ,  Seoyoung JEON ,  Yohan KWON ,  Jonghyun CHAE

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

CPC classification number: H01M4/0459 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M10/0525 ,  H01M2004/027

Abstract: Disclosed is a pre-lithiation method of an electrode for a lithium secondary battery, an electrode intermediate, and a lithium secondary battery including an electrode.

公开(公告)号：US20240178443A1

公开(公告)日：2024-05-30

申请号：US18477080

申请日：2023-09-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Inhyuk Son ,  Sungnim Jo ,  Kyueun Shim ,  Taehyun Park ,  Jieun Lee ,  Jinhwan Park ,  Kyusung Park

IPC: H01M10/0562 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/40

CPC classification number: H01M10/0562 ,  H01M4/0459 ,  H01M4/131 ,  H01M4/133 ,  H01M4/405 ,  H01M2004/027

Abstract: An all-solid secondary battery includes an electrode assembly including a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector, the solid electrolyte layer includes a sulfide-based solid electrolyte, the anode layer includes an anode current collector, a first anode active material layer, and a first protecting layer between the anode current collector and the first anode active material layer, the electrode assembly includes a second protecting layer on one surface or both (e.g., opposite) surfaces thereof, the first protecting layer is a conductive coating layer including a carbon-based material, the second protecting layer includes a porous multilayer member, and the porous multilayer member includes a porous cushioning layer and a porous covering layer on one surface or both (e.g., opposite) surfaces of the porous cushioning layer.

公开(公告)号：US20240113274A1

公开(公告)日：2024-04-04

申请号：US17960239

申请日：2022-10-05

Applicant: Livent USA Corp.

Inventor： Jian Xia ,  Kenneth Brian Fitch ,  Marina Yakovleva ,  Rebecca N. Black

IPC: H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/48 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/0459 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/483 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/027

Abstract: A one-step and dry process for forming a high first cycle efficiency anode is provided. The process may include dry mixing an active component having an active anode material, a binder and a conductive material with a prelithiation agent to form a dry anode material mixture. The prelithiating agent may be a printable lithium composition and may include a lithium metal powder, a polymer binder compatible with the lithium metal powder, and a rheology modifier compatible with the lithium metal powder. The prelithiation agent may also be a solvent-free stabilized lithium metal powder. The dry anode material mixture is applied to a substrate as a non self-supporting layer to form the electrode which may be used in a wide variety of batteries including lithium ion batteries, lithium ion capacitors and solid-state batteries.

公开(公告)号：US20240079635A1

公开(公告)日：2024-03-07

申请号：US18193933

申请日：2023-03-31

Applicant: Ningde Amperex Technology Limited

Inventor： Yangyang ZHANG

IPC: H01M10/0525 ,  H01M4/04 ,  H01M4/505

CPC classification number: H01M10/0525 ,  H01M4/0459 ,  H01M4/505 ,  H01M2004/028

Abstract: An electrochemical apparatus, including a positive electrode plate and a negative electrode plate; where the negative electrode plate includes a negative electrode active material layer, and the negative electrode active material layer includes a negative electrode active material; and the positive electrode plate includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a lithium manganese oxide; and when the electrochemical apparatus is at a 15% SOC, a lattice parameter a of the lithium manganese oxide is lower than or equal to 8.2008 Å. The electrochemical apparatus has good high-temperature storage performance and cycling performance.

公开(公告)号：US11855282B2

公开(公告)日：2023-12-26

申请号：US17842033

申请日：2022-06-16

Applicant: CAMX Power LLC

Inventor： David Ofer ,  Jane Rempel ,  Suresh Sriramulu

IPC: H01M4/50 ,  H01M4/13 ,  H01M4/52 ,  H01M10/05 ,  H01M4/505 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/131 ,  H01M10/052 ,  H01M4/485 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/505 ,  H01M4/04 ,  H01M4/0459 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: Provided are compositions, systems, and methods of making and using pre-lithiated cathodes for use in lithium ion secondary cells as the means of supplying extra lithium to the cell. The chemically or electrochemically pre-lithiated cathodes include cathode active material that is pre-lithiated prior to assembly into an electrochemical cell. The process of producing pre-lithiated cathodes includes contacting a cathode active material to an electrolyte, the electrolyte further contacting a counter electrode lithium source and applying an electric potential or current to the cathode active material and the lithium source thereby pre-lithiating the cathode active material with lithium. An electrochemical cell is also provided including the pre-lithiated cathode, an anode, a separator and an electrolyte.

公开(公告)号：US20230318056A1

公开(公告)日：2023-10-05

申请号：US18022935

申请日：2021-12-23

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Chan Soo JUN ,  Jong Hyun CHAE ,  Young Jae KIM

IPC: H01M10/44 ,  H01M10/052 ,  H01M4/38 ,  H01M4/1391 ,  H01M4/04

CPC classification number: H01M10/446 ,  H01M10/052 ,  H01M4/386 ,  H01M4/1391 ,  H01M4/0459 ,  H01M4/0445 ,  H01M2010/4292

Abstract: Methods for charging and discharging a secondary battery are disclosed, which includes: pre-lithiating a negative electrode comprising a silicon-based active material; preparing a secondary battery including the pre-lithiated negative electrode, a positive electrode, a separator, and an electrolyte; and electrochemically charging and discharging the secondary battery with at least one cycle, wherein the electrochemical charging and discharging of the secondary battery is performed so that a difference between a charge SOC and a discharge state of charge (SOC) of the pre-lithiated negative electrode is 18% to 32%.

公开(公告)号：US20230282800A1

公开(公告)日：2023-09-07

申请号：US18176857

申请日：2023-03-01

Applicant: THE UNIVERSITY OF CHICAGO

Inventor： Chong Liu ,  Yu Han

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052

CPC classification number: H01M4/0459 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052

Abstract: Methods for synthesizing layered lithium transition metal oxides from layered sodium transition metal oxides are provided. Also provided are electrodes for lithium-ion batteries that include the layered lithium transition metal oxides. Similarly, methods for the synthesis of layered sodium transition metal oxides from layered lithium transition metal oxides and electrodes for sodium-ion batteries that include the layered sodium transition metal oxides are provided. The methods couple electrochemical intercalation of alkali ions (Li+ or Na+) with ion-exchange to overcome the kinetic limitation of ion-exchange in the layered alkali transition metal oxides at low vacancy concentrations.

公开(公告)号：US20190051930A1

公开(公告)日：2019-02-14

申请号：US15675296

申请日：2017-08-11

Applicant: International Business Machines Corporation

Inventor： Joel P. de Souza ,  Yun Seog Lee ,  Devendra K. Sadana

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/04 ,  H01M4/131 ,  H01M4/525 ,  H01M4/1391 ,  H01M10/0585 ,  H01M4/04

CPC classification number: H01M10/0562 ,  H01M4/0404 ,  H01M4/0407 ,  H01M4/0421 ,  H01M4/0423 ,  H01M4/0459 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585

Abstract: A solid-state lithium-based battery having fast charging and recharging speeds (above 3 C) is provided by including a nitrogen-enriched lithiated cathode material surface layer between the lithiated cathode material layer and the lithium-based solid-state electrolyte layer. The nitrogen-enriched lithiated cathode material surface layer can be formed by introducing nitrogen into a lithiated cathode material. The nitrogen can be introduced during the final stage of a deposition process or by utilizing a different process, such as, for example, thermal nitridation, than a deposition process.

公开(公告)号：US09935310B2

公开(公告)日：2018-04-03

申请号：US14407489

申请日：2013-06-25

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Yoshihiro Nakagaki ,  Nobuhiro Goda ,  Manabu Miyoshi ,  Yushi Kondo ,  Kensuke Yotsumoto

IPC: H01M4/134 ,  C01B33/00 ,  H01M4/485 ,  H01M4/38 ,  H01M4/1395 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/134 ,  C01B33/00 ,  H01M4/0447 ,  H01M4/0459 ,  H01M4/13 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/30

Abstract: Providing a silicon-containing material having a novel structure being distinct from the structure of conventional silicon oxide disproportionated to use.A silicon-containing material according to the present invention includes at least the following: a continuous phase including silicon with Si—Si bond, and possessing a bubble-shaped skeleton being continuous three-dimensionally; and a dispersion phase including silicon with Si—O bond, and involved in an area demarcated by said continuous phase to be in a dispersed state.