公开(公告)号：US20250070271A1

公开(公告)日：2025-02-27

申请号：US18813060

申请日：2024-08-23

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Yusong CHOI ,  Tae Young AHN ,  SangHyeon HA ,  Jae Seong YEO ,  EunJi YOO ,  Jae In LEE

IPC: H01M10/26 ,  H01M4/02 ,  H01M4/04 ,  H01M4/38 ,  H01M4/80 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0569 ,  H01M50/609

Abstract: Provided is an anode including a metal porous body having a foam structure, a lithium-philic film formed on a surface of the metal porous body, and lithium impregnated into pores of the metal porous body.

公开(公告)号：US20250070169A1

公开(公告)日：2025-02-27

申请号：US18941795

申请日：2024-11-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Kai WU ,  Yuan LI ,  Xiaobin DONG ,  Jiazheng WANG ,  Liangbin LIU ,  Zijian LV ,  Yuwei QIN

IPC: H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/38 ,  H01M10/052

Abstract: A silicon-carbon composite material and a preparation method thereof, a negative electrode plate, and a secondary battery are disclosed. The silicon-carbon composite material includes a porous carbon matrix and silicon-based particles. The porous carbon matrix internally includes a plurality of pore channels with a width of 5 nm-50 nm. The silicon-based particles are distributed in the pore channels, and the porous carbon matrix meets: 1.0×10−7≤Vtotal/Stotal≤10.0×10−7, where Stotal is the total surface area occupied by the pore channels with the width of 5 nm-50 nm, and the measurement unit is: ×104 cm2/g; and Vtotal is the total pore volume occupied by the pore channels with the width of 5 nm-50 nm. The silicon-carbon composite material has high electrical conductivity. When being applied to a negative electrode of the secondary battery, the silicon-carbon composite material can effectively increase the volume capacity and energy density of the secondary battery.

公开(公告)号：US20250062395A1

公开(公告)日：2025-02-20

申请号：US18474540

申请日：2023-09-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Haijing Liu ,  Yong Lu ,  Xiayin Yao ,  Dingcheng Guo

IPC: H01M10/0562 ,  H01M4/38 ,  H01M4/62

Abstract: An electrolyte for use in an electrochemical cell. The electrolyte includes a first layer having a thickness of about 1 μm to about 40 μm and a second layer having a thickness of about 5 μm to about 60 μm. The first layer includes, based on a total weight of the first layer, about 10 wt. % to about 40 wt. % of first solid-state electrolyte particles, about 1 wt. % to about 15 wt. % of lithium, and about 1 wt. % to about 65 wt. % of fibrils including carbon and fluorine, The second layer includes second solid-state electrolyte particles.

公开(公告)号：US20250062362A1

公开(公告)日：2025-02-20

申请号：US18450617

申请日：2023-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed Nagy ,  Caleb Reese ,  Anil K. Sachdev ,  Anita Li ,  Xiaosong Huang

IPC: H01M4/66 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0585

Abstract: Lithium-ion cells and methods for producing such cells are provided. The lithium-ion cells include a lithium metal anode (LMA), a cathode, and an electrolyte between the LMA and the cathode. The LMA includes a current collector and a deformable layer on a surface of the current collector. The deformable layer is lithium-ion conductive and includes a polymeric material. The cathode has a lithium intercalation material. In some examples, lithium metal is plated on the deformable layer during charge of the lithium-ion cell to define a plated lithium layer between the deformable layer and the electrolyte, and a solid electrolyte interphase (SEI) layer forms on the plated lithium layer separating the plated lithium layer from the electrolyte.

公开(公告)号：US20250062317A1

公开(公告)日：2025-02-20

申请号：US18496685

申请日：2023-10-27

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyungsub Lim ,  Inhyuk Son ,  Sungnim Jo ,  Kyueun Shim ,  Taehyun Park ,  Jieun Lee

IPC: H01M4/136 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

Abstract: A solid secondary battery and a method of manufacturing the same are provided. The solid secondary battery includes a cathode layer, an anode layer, a solid electrolyte layer provided between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer provided on one surface or two surfaces of the cathode current collector. The cathode active material layer includes a composite cathode active material, and the composite cathode active material includes a composite of M2S, an alkali metal salt, and an inorganic electronic-conductive structure, wherein M is an alkali metal, and the alkali metal is Li or Na. The inorganic electronic-conductive structure has an electronic conductivity of 11×10−3 S/cm or more, and the composite includes a solid solution of the M2S and the alkali metal salt.

公开(公告)号：US12230808B2

公开(公告)日：2025-02-18

申请号：US17187217

申请日：2021-02-26

Applicant: DREXEL UNIVERSITY

Inventor： Caitlin Nicole Dillard ,  Vibha Kalra

IPC: H01M4/88 ,  H01M4/02 ,  H01M4/13 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M4/80 ,  H01M10/052 ,  H01M10/0525

Abstract: A free-standing electrically conductive porous structure suitable to be used as a cathode of a battery, including an electrically conductive porous substrate with sulfur diffused into the electrically conductive porous substrate to create a substantially uniform layer of sulfur on a surface of the electrically conductive porous substrate. The free-standing electrically conductive porous structure has a high performance when used in a rechargeable battery. A method of manufacturing the electrically conductive porous structure is also provided.

公开(公告)号：US12230763B2

公开(公告)日：2025-02-18

申请号：US17510696

申请日：2021-10-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Zeli Wu ,  Changlong Han

IPC: H01M10/0569 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0567 ,  H01M4/02

Abstract: The application provides a secondary battery and a device including the same. The secondary battery includes a negative electrode plate that includes a negative electrode film, where the negative electrode film includes a negative electrode active material; electrolyte that includes an electrolyte salt, an organic solvent and an additive, where the negative electrode active material includes a silicon-based material; the organic solvent includes dimethyl carbonate (DMC); and the additive includes one or more of compound shown in Formula 1 as discloses in the application, where, R1 is selected from one of C2˜C4 alkylene or halogenated alkylene, C2˜C4 alkenylene or halogenated alkenylene, C6˜C18 arylene and derivatives thereof. Under the premise of having a high energy density, the secondary battery and the device including the same according to the application can also have good high-temperature cycle performance and high-temperature storage performance.

公开(公告)号：US20250055028A1

公开(公告)日：2025-02-13

申请号：US18447385

申请日：2023-08-10

Applicant: Battelle Memorial Institute

Inventor： Matthew COLACHIS ,  Steven M. RISSER ,  Katherine PALMER

IPC: H01M10/0565 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/583 ,  H01M50/107

Abstract: A solid-state battery includes a cathode; an anode; and a solid-state electrolyte layer disposed between the cathode and the anode, where the cathode, the anode, and the solid-state electrolyte layer are comprised of flexible materials to form a thread.

公开(公告)号：US12224444B2

公开(公告)日：2025-02-11

申请号：US17681149

申请日：2022-02-25

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jooyong Song ,  In Chul Kim ,  Juri Kim ,  Hyun Min Kim

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0585

Abstract: Disclosed are an electrode assembly, and a secondary lithium battery including the same. The electrode assembly is configured by alternately stacking two or more positive electrodes and one or more negative electrodes using a separator as a boundary therebetween, outermost positive electrodes are positioned on outermost opposite surfaces of the electrode assembly, respectively, each of the outermost positive electrodes includes a positive electrode current collector, a positive active material layer formed on one surface of the positive electrode current collector, and a non-reversible material coating layer formed on the other surface of the positive electrode current collector and including lithium oxide, and the non-reversible material coating layer is positioned on an outermost surface of the electrode assembly.

公开(公告)号：US12224429B2

公开(公告)日：2025-02-11

申请号：US17460723

申请日：2021-08-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Yuqun Zeng ,  Chengdu Liang ,  Chuanmiao Yan ,  Jinhua Liu

IPC: H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode plate, a secondary battery and an apparatus thereof are provided in the present application. The negative electrode plate includes a negative electrode current collector and a negative membrane disposed on the negative electrode current collector, and the negative membrane includes a first coating layer and a second coating layer. The first coating layer is located on an outermost layer of the negative membrane and includes a first negative active material including a silicon-based material and a carbon material, and in the first coating layer, a mass percentage of the silicon-based material is 0.5% to 10%. The second coating layer is disposed between the first coating layer and the negative electrode current collector and includes a second negative active material including a silicon-based material and a carbon material, and in the second coating layer, a mass percentage of the silicon-based material is 5%-50%.