公开(公告)号：US12128466B2

公开(公告)日：2024-10-29

申请号：US17289212

申请日：2019-10-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumihiro Terasawa ,  Yoshihiro Miyoshi ,  Naoyuki Koide

IPC: B21B37/38 ,  B21B29/00 ,  B21B38/04 ,  B21C51/00 ,  B30B3/00 ,  H01M4/04 ,  H01M4/139

CPC classification number: B21B37/38 ,  B21B29/00 ,  B21B38/04 ,  B21C51/00 ,  B30B3/00 ,  H01M4/0435 ,  H01M4/139 ,  B21B2269/04

Abstract: In a roll press device, a thickness meter is provided on the exit side of first and second pressure rollers and detects the thickness of an electrode plate of a secondary battery at three or more points in the width direction of the electrode plate. From thickness measurement values at the three or more points and a thickness target value, a calculation unit calculates three feature amounts: the deviation between a thickness measurement value at the central point among the three or more points and the thickness target value, the quadratic component of the thickness profile of the electrode plate, and the linear component of the thickness profile of the electrode plate, and adaptively changes the respective pressure setting values of the first press mechanism, the second press mechanism, the first bend mechanism, and the second bend mechanism based on the three feature amounts.

公开(公告)号：US12125984B2

公开(公告)日：2024-10-22

申请号：US17498996

申请日：2021-10-12

Applicant: 24M Technologies, Inc.

Inventor： Raymond Zagars ,  Matthew R. Tyler ,  Neil Axelsen ,  Nathan Costa ,  Madeleine Finkenaur ,  Gregory Mehos ,  Hasan Siddiqui ,  Glenn Jordan

IPC: H01M10/0585 ,  H01M4/04 ,  H01M4/139 ,  H01M50/105 ,  H01M50/406

CPC classification number: H01M10/0585 ,  H01M4/043 ,  H01M4/139 ,  H01M50/105 ,  H01M50/406

Abstract: Embodiments described herein relate generally to systems and methods for continuously and/or semi-continuously manufacturing electrochemical cells with semi-solid electrodes. In some embodiments, a method can include mixing an active material, a conductive material, and an electrolyte to form a semi-solid electrode material. The method further includes drawing a vacuum on the semi-solid electrode material, compressing the semi-solid electrode material to form an electrode brick, and dispensing a portion of the electrode brick onto a current collector via a dispensation device to form an electrode. In some embodiments, the current collector is disposed on a pouch material. In some embodiments, the dispensation device includes a top blade for top edge control and two side plates for side edge control. In some embodiments, the method can further include conveying the electrode through the top blade and the two side plates to shape the electrode.

公开(公告)号：US20240347733A1

公开(公告)日：2024-10-17

申请号：US18627374

申请日：2024-04-04

Applicant: Solid Power Operating, Inc.

Inventor： Jason E. ROBERTS ,  James BERGMAN ,  Morgan MORRONI ,  Alexander DELLUVA ,  Collin R. BECKER

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/139 ,  H01M50/46

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/625 ,  H01M50/46 ,  H01M2004/028 ,  H01M2300/0065

Abstract: The present invention provides solid-state primary and secondary electrochemical cells, cathode slurries in an electrochemical cell, and electrode materials, and the corresponding methods of making and using the same.

公开(公告)号：US20240332633A1

公开(公告)日：2024-10-03

申请号：US18737839

申请日：2024-06-07

Applicant: Sakuu Corporation

Inventor： Steven Zhichao SHI ,  Philip Eugene ROGREN

IPC: H01M10/0585 ,  B29C64/106 ,  B33Y80/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/64 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0562 ,  H01M50/112 ,  H01M50/117 ,  H01M50/183 ,  H01M50/30

CPC classification number: H01M10/0585 ,  B29C64/106 ,  B33Y80/00 ,  H01M4/0402 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/624 ,  H01M4/625 ,  H01M4/626 ,  H01M4/64 ,  H01M4/661 ,  H01M4/663 ,  H01M4/664 ,  H01M4/666 ,  H01M10/052 ,  H01M10/0562 ,  H01M50/117 ,  H01M50/183 ,  H01M50/30 ,  H01M50/394 ,  H01M2004/021 ,  H01M2004/024 ,  H01M4/043 ,  H01M50/112 ,  H01M2300/0068

Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.

公开(公告)号：US20240290980A1

公开(公告)日：2024-08-29

申请号：US18569117

申请日：2022-06-06

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Julio A. Abusleme ,  Ségolène Brusseau ,  Andrea Vittorio Oriani ,  Michele Fiore ,  Roberto Biancardi

IPC: H01M4/62 ,  C08F214/22 ,  C09D127/16 ,  H01M4/04 ,  H01M4/139 ,  H01M10/0525

CPC classification number: H01M4/623 ,  C08F214/225 ,  C09D127/16 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/139 ,  H01M10/0525

Abstract: The present invention pertains to vinylidene fluoride copolymers comprising recurring units derived from hydrophilic monomers and to their use as binder for electrodes in Li-ion batteries.

公开(公告)号：US12074312B2

公开(公告)日：2024-08-27

申请号：US18338348

申请日：2023-06-21

Applicant: SK On Co., Ltd.

Inventor： Eun Jun Park ,  Gwi Ok Park ,  Hyo Shik Kil ,  In Ae Lee

IPC: H01M4/134 ,  H01M4/139 ,  H01M10/052 ,  B82Y30/00 ,  H01M4/02

CPC classification number: H01M4/134 ,  H01M4/139 ,  H01M10/052 ,  B82Y30/00 ,  H01M2004/027

Abstract: Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode for a lithium secondary battery according to an embodiment of the present invention includes a silicon-based negative electrode active material including iron and aluminum, wherein in ICP analysis of a negative electrode active material layer including the silicon-based negative electrode active material, contents of elements in the negative electrode active material layer satisfy the following Relations (1) to (3):

A/(B2+C2)≤4,500  (1)

5≤B≤1,500  (2)

3≤C≤1,000  (3)



wherein A is a Li content in ppm, B is an Fe content in ppm, and C is an Al content in ppm, based on the total weight of the ICP-analyzed negative electrode active material layer.

公开(公告)号：US20240274801A1

公开(公告)日：2024-08-15

申请号：US18436115

申请日：2024-02-08

Applicant: Ningde Amperex Technology Limited

Inventor： Bing JIANG ,  Tao LIU ,  Feng ZHOU ,  Qingwen ZHANG

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/139 ,  H01M10/0525 ,  H01M50/536

CPC classification number: H01M4/366 ,  H01M4/139 ,  H01M10/0525 ,  H01M50/536 ,  H01M2004/021

Abstract: An electrochemical device includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate. The first electrode plate includes a current collector, a tab, and an active layer. The tab is electrically connected to and extends out of the current collector. The active layer is disposed on a surface of the current collector. The active layer includes a first active layer and a second active layer. In a first direction, the first active layer is located on a side of the second active layer facing the tab, and is adjacent to or partially overlaps the second active layer. In a second direction, the first active layer and the second active layer extend in a strip shape. The cohesive force of the first active layer is greater than the cohesive force of the second active layer.

公开(公告)号：US20240274781A1

公开(公告)日：2024-08-15

申请号：US18567745

申请日：2022-12-08

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Hyejin KWON ,  Sohee KIM ,  Jeonggil KIM ,  Taegon KIM ,  Ki Tae KIM ,  Choonghyeon LEE ,  Myeongsoo KIM

IPC: H01M4/04 ,  H01M4/02 ,  H01M4/139 ,  H01M4/62

CPC classification number: H01M4/0416 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/139 ,  H01M4/62 ,  H01M2004/021 ,  H01M2300/0065

Abstract: A method for manufacturing an electrode for an all-solid-state battery is provided. The method comprises steps of applying granules containing an active material on a current collector, aligning and fixing the granules, applying a solid electrolyte solution on the granules, and moving the solid electrolyte solution into pores between the granules by reducing the pressure by vacuum at 20° C. to 40° C.

公开(公告)号：US20240266542A1

公开(公告)日：2024-08-08

申请号：US18690925

申请日：2023-04-20

Applicant: LG Energy Solution, Ltd.

Inventor： Seong-Wook Kang ,  Jae-Sung Han ,  Sang-Min Kwak ,  Kyung-Hwan Yoon ,  Dong-Oh Shin ,  Ki-Seok Lee ,  Kwang-Ho Yoo ,  Nam-Jeong Lee

IPC: H01M4/62 ,  C08J3/22 ,  C08K3/04 ,  C08L27/16 ,  H01M4/02 ,  H01M4/04 ,  H01M4/139

CPC classification number: H01M4/623 ,  C08J3/226 ,  C08K3/041 ,  C08L27/16 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/625 ,  C08J2327/16 ,  C08J2427/18 ,  C08K2201/001 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  C08L2205/025 ,  C08L2310/00 ,  H01M2004/021

Abstract: The present disclosure relates to a conductive material master batch for use in an electrode and an electrode obtained by using the same. The electrode obtained by using the conductive material master batch has an electrode resistance of 55 ohm·cm or less.

公开(公告)号：US20240250238A1

公开(公告)日：2024-07-25

申请号：US18099568

申请日：2023-01-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chuanlong WANG ,  Xiaosong Huang ,  Mark W. Verbrugge

IPC: H01M4/139 ,  H01M4/62 ,  H01M4/86

CPC classification number: H01M4/139 ,  H01M4/623 ,  H01M4/8652

Abstract: A composite electrode for an electrochemical cell that cycles lithium ions is manufactured by introducing a solvent, a binder, electroactive material particles, and an electrically conductive agent into a screw extruder to form an electrode precursor mixture. The electrode precursor mixture is discharged from the screw extruder and deposited on a metal substrate to form an electrode precursor layer. The electrode precursor layer is calendared by passing the electrode precursor layer between rollers to adhere the electrode precursor layer to and uniformly distribute the electrode precursor layer over the metal substrate. Then, the electrode precursor layer is dried to remove the solvent therefrom and form a solid electrode layer including the electroactive material particles, the electrically conductive agent, and the binder on the surface of the metal substrate.