公开(公告)号：US20250070171A1

公开(公告)日：2025-02-27

申请号：US18721746

申请日：2022-12-20

Applicant: TALGA TECHNOLOGIES LIMITED

Inventor： Claudio CAPIGLIA ,  Fengming LIU ,  Sai SHIVAREDDY

IPC: H01M4/587 ,  C01B32/21 ,  H01M4/36

Abstract: An anode material comprising graphite particles of predominantly two distinct sizes. Also described are a method for producing an anode material comprising graphite particles of predominantly two distinct sizes and a battery comprising an anode material as described.

公开(公告)号：US20250070146A1

公开(公告)日：2025-02-27

申请号：US18725882

申请日：2023-06-22

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Su Jin PARK ,  Jaewook LEE

IPC: H01M4/38 ,  H01M4/02 ,  H01M4/36 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525

Abstract: A negative electrode for a lithium secondary battery according to the present invention comprises: a negative electrode current collector layer; a primer coating layer including a primer coating layer composition and provided on one or both sides of the negative electrode current collector layer; and a negative electrode active material layer provided on the opposite side of the primer coating layer from the side in contact with the negative electrode current collector layer. The negative electrode active material layer includes: a silicon-based active material; a negative electrode conductive material; and a negative electrode active material layer composition including a negative electrode binder, wherein the silicon-based active material includes at least one selected from the group consisting of SiOx (x=0) and SiOx (0

公开(公告)号：US20250070137A1

公开(公告)日：2025-02-27

申请号：US18941337

申请日：2024-11-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Manman WANG ,  Xiaoming GE ,  Chuying OUYANG

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/46

Abstract: A conductive film includes: a substrate, where the substrate has a first surface and a second surface facing away from each other, and the substrate has a dense structure; and a first porous layer, where the first porous layer is stacked and bonded to the first surface of the substrate; the first porous layer includes a porous conductive material; and the porous conductive material has pores with first pore size and pores with second pore size; the first pore size being n micrometers, where 0.5≤n≤10; and the second pore size being m nanometers, where 20

公开(公告)号：US20250070136A1

公开(公告)日：2025-02-27

申请号：US18814098

申请日：2024-08-23

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Byungwuk KANG ,  Sungwook DOO ,  Young-Ki KIM ,  Sung Ho CHOO ,  Dowook JUN ,  Gwiwoon KANG ,  Jaeyong JEONG ,  Youngsun KONG ,  Seok Mun KANG ,  Jaesang YOON

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode active material includes a core particle including a layered lithium nickel-manganese-based composite oxide, a first coating layer provided on the surface of the core particle and including Al, and a second coating layer provided on the first coating layer and including Ni. A method for preparing a positive electrode active material includes: mixing a layered nickel-manganese composite hydroxide and a lithium raw material and performing a first heat treatment to obtain a lithium nickel-manganese-based composite oxide, adding an aluminum (Al) raw material to an aqueous solvent, adding the lithium nickel-manganese composite oxide thereto and mixing them, then adding a nickel (Ni) raw material and mixing them, and drying the mixture and performing a second heat treatment.

公开(公告)号：US20250070112A1

公开(公告)日：2025-02-27

申请号：US18943500

申请日：2024-11-11

Applicant: DEMARAY, LLC

Inventor： R. Ernest DEMARAY ,  James KASCHMITTER ,  Pavel KHOKHLOV

IPC: H01M4/04 ,  C01G23/00 ,  H01M4/13 ,  H01M4/139 ,  H01M4/36 ,  H01M4/64 ,  H01M4/66 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585 ,  H01M10/42

Abstract: Embodiments of the present invention are in the field of materials, apparatus, process, methods, and designs for manufacture of a thin film energy storage devices with a capacity greater then 1 mA-hr-cm−2 including thin film Lithium metal and Li+ ion batteries and capacitors having high energy density and high cycle life due to the incorporation of at least one vacuum thin film with respect to protection and electrical conductivity of the electrodes, and at least one vacuum thin film electrolyte for electrical insulation of the electrodes and ion conduction after assembly for low self discharge and high cycle life battery cells.

公开(公告)号：US12237498B2

公开(公告)日：2025-02-25

申请号：US16935671

申请日：2020-07-22

Applicant: UNIVERSITY OF WYOMING

Inventor： Erica Belmont ,  Kurt Stahlfeld

IPC: C01B32/05 ,  C10G1/00 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

Abstract: The disclosure generally relates to a method for fabrication of carbon foam and materials derived from the pyrolization of biomass at supercritical and subcritical conditions for CO2 and N2. The method includes exposing biomass to CO2 and N2 under various parameters for temperature, pressure, heating rate and fluid flow rate. Silicon-carbon composite anodes and anode fabrication methods are also described.

公开(公告)号：US12237496B2

公开(公告)日：2025-02-25

申请号：US17605057

申请日：2020-04-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jinhyon Lee ,  Hongjeong Kim ,  Hyeri Eom ,  Sangjun Lee ,  Daeseop Lim

IPC: H01M4/133 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525

Abstract: The present invention relates a negative electrode for a lithium secondary battery, and a lithium secondary battery comprising same, wherein the negative electrode for a lithium secondary battery comprises a current collector, and a negative electrode active material layer including a first layer formed on the current collector and a second layer formed on the first layer, the first layer containing a first carbon-based negative electrode active material, and the second layer containing a second carbon-based negative electrode active material, wherein the degree of divergence (DD) value of the first layer is 30-90% of the DD value of the negative electrode active material layer, the DD value is defined by formula 1 below. DD (Degree of Divergence)=(Ia/Itotal)*100  [Formula 1] (In formula 1, Ia is the sum of peak intensities of peaks at out-of plane angles as measured by XRD with CuKα, and Itotal is the sum of peak intensities of peaks at all angles as measured by XRD with CuKα).

公开(公告)号：US12234158B2

公开(公告)日：2025-02-25

申请号：US17043610

申请日：2019-05-21

Applicant: Microvast Power Systems Co., LTD.

Inventor： Bryan Yonemoto ,  Xiao Zhang ,  Huijie Guo ,  Jianzhao Liu

IPC: C01G53/00 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M4/02

Abstract: The invention relates to a method for preparing transitional-metal particles (cathode particle precursor) under a co-precipitation reaction. In this method, by feeding different types of anion compositions and/or cation compositions, and adjusting the pH to match with the species, precipitated particles are deposited to form a slurry, colleting the slurry, treating with water, and drying to get a cathode particle precursor. Mixing the cathode particle precursor with a lithium source and calcining to yield core-shell structured cathode active particles. Such cathode active particle can be used to prepare cathode of lithium-ion battery.

公开(公告)号：US20250062358A1

公开(公告)日：2025-02-20

申请号：US18511019

申请日：2023-11-16

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Ju Young Jang ,  Byung Yong Lee

IPC: H01M4/62 ,  H01M4/13 ,  H01M4/36

Abstract: The present invention provides a self-standing film laminate for an anode of a lithium secondary battery, the self-standing film laminate including a first self-standing film including a first anode active material, a first conductive material, and a first binder containing a triblock copolymer, and a second self-standing film including a second anode active material, a second conductive material, and a second binder containing a fluorine-based resin, wherein the triblock copolymer includes a soft block derived from aliphatic or cycloaliphatic diene-based monomers and exhibiting a rubber phase at room temperature, and a first hard block and a second hard block each connected to both ends of the soft block, derived from an aromatic ring-containing ethylenically unsaturated monomer, and exhibiting a glass phase at room temperature, and the first binder is in the form of a non-continuous column connecting between any one of a domain of the first anode active material or a domain of the first conductive material and another one of a domain of the first anode active material or a domain of the first conductive material.

公开(公告)号：US20250062340A1

公开(公告)日：2025-02-20

申请号：US18934497

申请日：2024-11-01

Applicant: ECOPRO BM CO., LTD.

Inventor： Moon Ho CHOI ,  Hyun Jong YU ,  Chang Woo LEE ,  Yu Kyung CHUN

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M10/0525

Abstract: The present invention relates to a lithium composite oxide having improved stability and electrical characteristics as a positive electrode material by inhibiting an interfacial side reaction in the lithium composite oxide and improving the stability of a crystal structure and ion conductivity, and a lithium secondary battery including the same.