公开(公告)号：US20240356059A1

公开(公告)日：2024-10-24

申请号：US18396497

申请日：2023-12-26

申请人： Tesla, Inc.

发明人： Hieu Minh Duong ,  Porter Mitchell ,  Mohammed-Yazid Saidi ,  Joon Ho Shin ,  Haim Feigenbaum

IPC分类号： H01M10/0525 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62

CPC分类号： H01M10/0525 ,  H01M4/043 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/382 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M4/628

摘要： An energy storage device can include a first electrode, a second electrode and a separator between the first electrode and the second electrode wherein the first electrode includes an electrochemically active material and a porous carbon material, and the second electrode includes elemental lithium metal and carbon particles. A method for fabricating an energy storage device can include forming a first electrode and a second electrode, and inserting a separator between the first electrode and the second electrode, where forming the first electrode includes combining an electrochemically active material and a porous carbon material, and forming the second electrode includes combining elemental lithium metal and a plurality of carbon particles.

公开(公告)号：US20240354472A1

公开(公告)日：2024-10-24

申请号：US18294801

申请日：2022-06-20

申请人： Siemens Aktiengesellschaft

发明人： Manfred Baldauf ,  Jonas Witt ,  Thomas Runkler ,  Marc Christian Weber ,  Clemens Otte ,  Frank Steinbacher ,  Arno Arzberger ,  Gunnar Stoelben

IPC分类号： G06F30/27 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/1395

CPC分类号： G06F30/27 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/0419 ,  H01M4/0435

摘要： Various embodiments of the teachings herein include a method for producing an electrode layer of a battery store by a system using an electrode layer paste. An example method includes: acquiring system parameters associated with the production of the electrode layer; acquiring a measured value of a variable of the electrode layer; calculating a correction value from a comparison of the acquired measured value of the electrode layer with a defined target value range; and setting the system parameters as a function of the calculated correction value.

公开(公告)号：US20240339612A1

公开(公告)日：2024-10-10

申请号：US18664902

申请日：2024-05-15

申请人： Ningde Amperex Technology Limited

发明人： Mingju LIU ,  Yajie LI ,  Qingwen ZHANG

IPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/62 ,  H01M4/66

CPC分类号： H01M4/583 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1393 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M2004/021 ,  H01M2004/027

摘要： An electrochemical apparatus includes an electrode, the electrode includes a current collector and an active material layer disposed on at least one surface of the current collector, where when the active material layer is subjected to thermogravimetric analysis at a temperature rise rate of 10° C./min in an inert atmosphere, a result of the thermogravimetric analysis shows that a mass change of the active material layer at 200° C. to 350° C. is 0% to 0.2%.

公开(公告)号：US20240339611A1

公开(公告)日：2024-10-10

申请号：US18540898

申请日：2023-12-15

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Xinghui WANG ,  Huihui LIU ,  Wenmeng ZHANG ,  Shuhua CHEN

IPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/62

CPC分类号： H01M4/583 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/1393 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/027

摘要： The present application provides a negative electrode plate, comprising a current collector and a negative electrode film layer, wherein the negative electrode film layer comprises a negative electrode active material, a copolymer formed by acrylonitrile and acrylic acid components, and a polyol. Optionally, the negative electrode film layer further comprises a polyether. The cross-linked polymer and polyether described in the present application can reduce the rebound rate of the negative electrode plate during cycling, thereby improving the capacity retention rate of the battery.

公开(公告)号：US20240339589A1

公开(公告)日：2024-10-10

申请号：US18293606

申请日：2022-06-24

申请人： Panasonic Energy Co., Ltd.

发明人： Shouichiro Sawa

IPC分类号： H01M4/133 ,  H01M4/02 ,  H01M4/1393 ,  H01M10/0525

CPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M10/0525 ,  H01M2004/028

摘要： A non-aqueous electrolyte secondary battery according to one aspect of the present disclosure comprises a positive electrode, a negative electrode, a separator separating the positive electrode and the negative electrode from each other, and a non-aqueous electrolyte. The positive electrode comprises a positive electrode current collector and a positive electrode mixture layer formed on a surface of the positive electrode current collector. The positive electrode mixture layer includes a first positive electrode mixture layer opposing the positive electrode current collector, and a second positive electrode mixture layer laminated on the surface of the first positive electrode mixture layer, and at least, the first positive electrode mixture layer contains fibrous carbon, and the second positive electrode mixture layer does not contain fibrous carbon having an average fiber length equal to or greater than the thickness of the second positive electrode mixture layer.

公开(公告)号：US12110456B2

公开(公告)日：2024-10-08

申请号：US17410989

申请日：2021-08-24

申请人： florrent, Inc.

发明人： Jose LaSalle ,  Alexander Stuart Nichols

IPC分类号： C10B53/02 ,  H01G11/34 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/58

CPC分类号： C10B53/02 ,  H01G11/34 ,  H01M4/0471 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/5825

摘要： Methods and compositions suitable for forming electrodes and other components of energy storage devices are disclosed.

公开(公告)号：US12107276B2

公开(公告)日：2024-10-01

申请号：US17612026

申请日：2020-09-16

申请人： LG ENERGY SOLUTION, LTD.

发明人： Bong Soo Kim ,  Gi Su Park ,  Seong Ho Lee

IPC分类号： H01M4/80 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/36 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/80 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

摘要： A positive electrode for a lithium-sulfur secondary battery includes a positive electrode active material layer having an intaglio pattern formed therein. A method for manufacturing the same, and a lithium-sulfur secondary battery including the same are also provided. The positive electrode active material layer has a porosity of 50 to 65%. The intaglio pattern has a width of 1 to 100 μm and a depth of 30 to 99% based on the thickness of the positive electrode active material layer. The volumetric ratio of the positive electrode active material layer and the intaglio pattern is 4:1 to 40:1. When the positive electrode is applied to a lithium-sulfur secondary battery, the energy density per unit volume can be remarkably improved.

公开(公告)号：US12107256B2

公开(公告)日：2024-10-01

申请号：US18093215

申请日：2023-01-04

申请人： SK ON CO., LTD.

发明人： Sang Min Park ,  Tae Kyoung Lee ,  Sang Bok Kim ,  Jik Soo Kim ,  Sang Hye Shin ,  Yu Na Shim ,  Jeong Bae Yoon

IPC分类号： H01M4/131 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/525 ,  H01M10/0525

CPC分类号： H01M4/131 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/525 ,  H01M10/0525

摘要： The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

公开(公告)号：US20240282921A1

公开(公告)日：2024-08-22

申请号：US18646860

申请日：2024-04-26

申请人： Mitsubishi Chemical Corporation

发明人： Yuuki ENATSU ,  Naoto MARU ,  Tooru FUSE

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/583

CPC分类号： H01M4/364 ,  H01M4/0404 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/583 ,  H01M2004/021 ,  H01M2004/027

摘要： Particles may have a chromaticity b* of 2.0 or less. Such particles may include graphite (A) and particles (B) containing a silicon element. The chromaticity b* of the particles is preferably 0.2 or more and 1.1 or less, and the chromaticity a* of the particles is preferably 0.2 or more and 1.2 or less. A method can manufacture a secondary battery including a positive electrode, a negative electrode, and an electrolyte, wherein the negative electrode includes a current collector and a negative electrode active material layer disposed on the current collector, and the negative electrode active material layer contains such graphite.

公开(公告)号：US20240243266A1

公开(公告)日：2024-07-18

申请号：US18622285

申请日：2024-03-29

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Congsu NIU ,  Zhenxing PEI ,  Xiaowei LI ,  Xiaomei LIU

IPC分类号： H01M4/36 ,  C01B25/45 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/58 ,  H01M4/587

CPC分类号： H01M4/366 ,  C01B25/45 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/5825 ,  H01M4/587 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/11 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

摘要： A positive electrode material composition includes a positive electrode active material and optionally, an optional positive electrode conductive agent, the positive electrode active material includes a core and a shell on at least a portion of a surface of the core, the core includes lithium phosphate, the shell includes a carbon material, a graphitization degree of the positive electrode active material is denoted as g1, a mass percentage of the positive electrode conductive agent in the positive electrode material composition is denoted as w1, 10%≤g1≤50%, and 0%≤w1≤1%.