公开(公告)号：US12132163B2

公开(公告)日：2024-10-29

申请号：US17761746

申请日：2020-09-17

Applicant: LG Energy Solution, Ltd.

Inventor： Soon Ju Choi ,  Eun Ju Lee ,  Seok Koo Kim ,  Ji Eun Lee ,  Ji Hoon Ryu

IPC: H01M10/04 ,  H01M10/0583 ,  H01M10/44 ,  H01M50/317 ,  H01M50/46

CPC classification number: H01M10/049 ,  H01M10/0583 ,  H01M10/446 ,  H01M50/317 ,  H01M50/46

Abstract: The present invention relates to a method for manufacturing a secondary battery and a secondary battery. The method for manufacturing the secondary battery comprises an accommodation step of accommodating an electrode assembly in an accommodation part of a battery case, a vent membrane mounting step of mounting a vent membrane on a discharge hole, which passes between the inside and outside of the battery case, in the battery case, and a case sealing step of sealing the battery case, wherein the vent membrane allows only a gas to pass through the discharge hole of the battery case, but blocks a liquid.

公开(公告)号：US12113203B2

公开(公告)日：2024-10-08

申请号：US17254516

申请日：2019-07-04

Applicant: LG CHEM, LTD.

Inventor： Oh Byong Chae ,  Sang Wook Woo ,  Ye Ri Kim

IPC: H01M4/1395 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/58 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/02

CPC classification number: H01M4/1395 ,  H01M4/0445 ,  H01M4/0469 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/366 ,  H01M4/382 ,  H01M4/485 ,  H01M4/58 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027

Abstract: A negative electrode for a lithium secondary battery, a negative electrode in which the negative electrode is pre-lithiated, a method of manufacturing the negative electrode, and a lithium secondary battery including the negative electrode. The pre-lithiated negative electrode may increase the capacity and improve the electrochemical performance of a lithium secondary battery by securing the initial reversibility of a negative electrode.

公开(公告)号：US12107208B2

公开(公告)日：2024-10-01

申请号：US17517347

申请日：2021-11-02

Applicant: GS Yuasa International Ltd.

Inventor： Kaname Nakajima ,  Heisuke Nishikawa ,  Shuji Hitomi

IPC: H01M10/0568 ,  H01M4/58 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0561 ,  H01M10/0567 ,  H01M10/058 ,  H01M50/46 ,  H01M50/489 ,  H01M4/02 ,  H01M50/417

CPC classification number: H01M10/045 ,  H01M4/58 ,  H01M4/5815 ,  H01M10/049 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0561 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/058 ,  H01M50/46 ,  H01M50/489 ,  H01M2004/028 ,  H01M50/417 ,  H01M2300/0017 ,  H01M2300/0037 ,  Y02E60/10 ,  Y02T10/70

Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
The method includes injecting a lithium polysulfide-containing positive electrode electrolyte between the positive electrode and the cation exchange resin layer, and injecting a negative electrode electrolyte between the negative electrode and the cation exchange resin layer, the negative electrode electrolyte having a lithium polysulfide concentration lower than that of the positive electrode electrolyte.

公开(公告)号：US20240313356A1

公开(公告)日：2024-09-19

申请号：US18669343

申请日：2024-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shengyun SHI ,  Zhijun GUO

IPC: H01M50/477 ,  H01M10/04 ,  H01M50/103 ,  H01M50/474

CPC classification number: H01M50/477 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/103 ,  H01M50/474

Abstract: A battery cell includes: a housing, an electrode assembly, a first insulator, a support assembly, and a second insulator. The housing forms an accommodation cavity. The electrode assembly is accommodated in the accommodation cavity. The electrode assembly 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 and the second electrode plate are stacked along a first direction. The first insulator includes a first insulation portion. The first insulation portion is disposed on one side of the electrode assembly and parallel to the first direction. The first insulation portion includes a first channel that runs through the first insulation portion.

公开(公告)号：US20240304965A1

公开(公告)日：2024-09-12

申请号：US18666661

申请日：2024-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long CHEN ,  Denghua LIN ,  Shoujun HUANG ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/682 ,  B60L50/64 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/342 ,  H01M50/474 ,  H01M50/627

CPC classification number: H01M50/682 ,  B60L50/64 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/3425 ,  H01M50/474 ,  H01M50/627 ,  H01M2220/20

Abstract: Some embodiments of this application provide a battery cell, a battery, an electrical device, and a method and equipment for manufacturing a battery cell. The battery cell includes: a shell, where the shell includes an accommodation cavity and a first wall, and an injection port is created on the first wall; an electrode assembly, accommodated in the accommodation cavity; and a flow guide, disposed between the first wall and the electrode assembly. The flow guide includes a liquid collection tank. An opening of the liquid collection tank is oriented toward the first wall. A through-hole is created on a bottom wall of the liquid collection tank. The liquid collection tank is configured to collect an electrolyte solution injected through the injection port. The electrolyte solution in the liquid collection tank flows to the electrode assembly through the through-hole.

公开(公告)号：US20240243333A1

公开(公告)日：2024-07-18

申请号：US18619832

申请日：2024-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Guangyao WANG ,  Xiang FAN ,  Gang LIN

IPC: H01M10/04

CPC classification number: H01M10/0404 ,  H01M10/0481 ,  H01M10/049

Abstract: Embodiments of the present application provide a feeding device for loading a material into a container, which relates to the technical field of product assembly. The feeding device is configured to load a material into a container having an opening. The feeding device includes a pressing unit. The pressing unit includes a pressing member having a pressing plane, and a driving member configured to drive the pressing member to move cyclically along a closed track. The closed track includes a first planar track segment, and when the pressing member moves along the first planar track segment, the pressing plane forms surface contact with the material and keeps extending in a material loading direction, the material loading direction being a movement direction of the material relative to the container. The feeding device can reduce damage to the material during a feeding process.

公开(公告)号：US20240234705A1

公开(公告)日：2024-07-11

申请号：US18372308

申请日：2023-09-25

Applicant: 24M Technologies, Inc. ,  Kyocera Corporation

Inventor： Naoki OTA ,  Mihai DUDUTA ,  Takaaki FUKUSHIMA ,  Hiuling Zoe YU ,  Taison TAN ,  Hiromitsu MISHIMA

IPC: H01M4/38 ,  H01M4/02 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/058

CPC classification number: H01M4/382 ,  H01M4/049 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/587 ,  H01M4/625 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027 ,  H01M4/0495 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485

Abstract: Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.

公开(公告)号：US20240222749A1

公开(公告)日：2024-07-04

申请号：US18397945

申请日：2023-12-27

Applicant: Youlchon Chemical Co., Ltd.

Inventor： Nok Jung Song ,  Hee Sik Han ,  Jee Eun Jang ,  Huihun Kim

IPC: H01M50/131 ,  H01M10/04 ,  H01M50/105 ,  H01M50/129

CPC classification number: H01M50/131 ,  H01M10/049 ,  H01M50/105 ,  H01M50/129 ,  H01M2220/10 ,  H01M2220/20

Abstract: A pouch film for a secondary battery, wherein at least an outer layer, a barrier layer, and a sealant layer are structured in this order, the sealant layer includes an extrusion (EC) layer and a polypropylene (PP) layer below the extrusion (EC) layer, having excellent sealing strength at ambient and high temperatures, and having excellent sealing strength maintenance properties at ambient and especially high temperatures, a method for preparing the pouch film, a secondary battery using the pouch film, and a method for manufacturing the same are disclosed. The pouch film for the secondary battery has excellent high temperature long-term reliability in battery pack manufacturing, and can be useful for medium to large-sized batteries.

公开(公告)号：US11990580B2

公开(公告)日：2024-05-21

申请号：US17410821

申请日：2021-08-24

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Hokyeong Oh ,  SeHo Kwon

IPC: H01M10/04

CPC classification number: H01M10/049 ,  H01M10/0431

Abstract: An apparatus for manufacturing a battery cell by stacking a negative electrode, a separator, and a positive electrode includes, a loading unit of loading the negative electrode, separator, and positive electrode, a negative electrode stacking unit disposed adjacent to the loading unit, and configured to cut a negative electrode material unwound from a negative electrode roll to a preset length and stack the cut negative electrode material on the loading unit, a separator stacking unit disposed adjacent to the loading unit, and configured to cut a separator material unwound from a separator roll to a preset length and to stack the cut separator material on the loading unit, and a positive electrode stacking unit disposed adjacent to the stacking unit, and configured to cut a positive electrode material unwound from a positive electrode roll to a preset length and stack the cut positive electrode material on the loading unit.

公开(公告)号：US20240136565A1

公开(公告)日：2024-04-25

申请号：US18333919

申请日：2023-06-12

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Kyung Mo KIM

IPC: H01M10/04 ,  H01M50/105

CPC classification number: H01M10/049 ,  H01M50/105

Abstract: The present disclosure relates to an apparatus for manufacturing a battery cell. For example, a battery cell includes a casing having two open sides and an auxiliary portion, and an electrode assembly configured to be inserted into the casing. The electrode assembly is manufactured by stacking a positive electrode with a positive electrode tab, a separator, and a negative electrode with a negative electrode tab. The electrode assembly includes a band element surrounding the electrode assembly and including an extended portion.