公开(公告)号：US20200295315A1

公开(公告)日：2020-09-17

申请号：US16479010

申请日：2018-10-19

Applicant: LG Chem, Ltd.

Inventor： Na Yoon Kim ,  Yong Su Choi ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Soo Ji Hwang ,  Min Hyeong Kang ,  Yong Kim

IPC: H01M2/02 ,  H01M2/08 ,  H01M2/34 ,  H01M2/26 ,  H01M2/12 ,  H01M10/0525 ,  B32B15/088 ,  B32B15/20 ,  B32B37/18 ,  B32B38/00

Abstract: To solve the above problems, a pouch for a battery according to an embodiment of the present invention includes: a cup part that accommodates an electrode assembly and is formed by laminating a surface protection layer, a gas barrier layer including a metal, and a sealant layer; and a degassing part in which a degassing aperture is punched when a degassing process is performed and in which no gas barrier layer is formed.

公开(公告)号：US20200259146A1

公开(公告)日：2020-08-13

申请号：US16637538

申请日：2019-01-23

Applicant: LG Chem, Ltd.

Inventor： Na Yoon Kim ,  Yong Su Choi ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Soo Ji Hwang

IPC: H01M2/12 ,  F16K17/04

Abstract: To solve the above problem, a venting device inserted into a sealing part of a pouch of a secondary battery according to the present invention includes: a housing inserted between confronting surfaces of the sealing part and sealed together with the sealing part; an element made of a metal and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a ball disposed at an outlet-side of the passage, the ball configured to open and close the passage, wherein, in the element, an edge of an inner circumference of a surface of the outlet-side of the passage is chamfered or filleted so as to face the ball, and the element includes: a surface treatment layer formed on the chamfered or filleted surface; and a layer made of a polymer and fused to the surface treatment layer.

公开(公告)号：US10084162B2

公开(公告)日：2018-09-25

申请号：US14923488

申请日：2015-10-27

Applicant: LG CHEM, LTD.

Inventor： Soo Ji Hwang ,  Sang Hun Kim ,  Won Pill Hwang ,  Sang Sok Jung ,  Hyung Kyun Yu

IPC: H01M2/02 ,  H01M10/0525 ,  B32B5/20 ,  B32B7/12 ,  B32B15/04 ,  B32B15/082 ,  B32B15/085 ,  B32B15/18 ,  B32B15/20 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36

CPC classification number: H01M2/0292 ,  B32B5/20 ,  B32B7/12 ,  B32B15/046 ,  B32B15/082 ,  B32B15/085 ,  B32B15/18 ,  B32B15/20 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B2262/10 ,  B32B2264/00 ,  B32B2264/12 ,  B32B2266/0214 ,  B32B2266/0264 ,  B32B2266/0278 ,  B32B2270/00 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/558 ,  B32B2307/581 ,  B32B2307/714 ,  B32B2307/7265 ,  B32B2307/732 ,  B32B2439/46 ,  B32B2457/10 ,  B32B2571/00 ,  H01M2/0275 ,  H01M10/0525

Abstract: A pouch case of the present disclosure includes an inner resin layer, a metallic layer, and an outer resin layer, wherein the resin layer(s) include(s) a foaming activator containing an isocyanate-based compound and a polyol compound. Accordingly, since the pouch case includes the inner resin layer and/or the outer resin layer including the foaming activator, when moisture or the like is permeated thereto due to an external factor, a protective layer including urethane-based foam is formed in the outer resin layer or between the inner resin layer and an electrode assembly in a short time, so that the pouch case and the electrode assembly may be protected, moisture which is permeable into the electrode assembly may be blocked, and separator cracking also may be prevented. Accordingly, explosion which may be caused by moisture permeation, separator cracking, or a short circuit by contact between the pouch case and the electrode assembly, or the like, may be prevented, and stability of a pouch type secondary battery may thus be ensured.

公开(公告)号：US20160293934A1

公开(公告)日：2016-10-06

申请号：US15035293

申请日：2015-07-08

Applicant: LG CHEM, LTD.

Inventor： Ju Ho Chung ,  Gyu Ok Hwang ,  Soo Ji Hwang ,  Hong Kyu Park

IPC: H01M4/131 ,  H01M4/62 ,  H01M4/48 ,  H01M4/525 ,  H01M4/52 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/131 ,  C01G53/50 ,  C01P2006/40 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/58 ,  H01M4/5825 ,  H01M10/052

Abstract: The present disclosure provides a positive electrode material comprising: a positive electrode active material mixture comprising a positive electrode active material prepared with an active material precursor and a lithium compound, a conductive agent and a binder; and an active material precursor as an additive, in which the active material precursor as the additive is a same substance as the active material precursor as a material of the positive electrode active material.

Abstract translation: 本发明提供一种正极材料，其包括：正极活性物质混合物，其包含由活性物质前体和锂化合物，导电剂和粘合剂制备的正极活性物质; 作为添加剂的活性物质前体，作为添加剂的活性物质前体与作为正极活性物质的材料的活性物质前体是相同的物质。

公开(公告)号：US12002974B2

公开(公告)日：2024-06-04

申请号：US16621814

申请日：2018-11-06

Applicant: LG Chem, Ltd.

Inventor： Yong Su Choi ,  Sang Hun Kim ,  Min Hyeong Kang ,  Hyung Kyun Yu ,  Soo Ji Hwang ,  Na Yoon Kim ,  Yong Kim

IPC: B60T8/18 ,  B65G65/23 ,  G07F7/06 ,  H01M50/105 ,  H01M50/178 ,  H01M50/553 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/534 ,  H01M50/536 ,  H01M50/55 ,  H01M50/557

CPC classification number: H01M50/178 ,  H01M50/105 ,  H01M50/553 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/534 ,  H01M50/536 ,  H01M50/55 ,  H01M50/557

Abstract: A pouch type secondary battery according to the present invention includes: an electrode assembly; a battery case accommodating the electrode assembly in an inside thereof; an electrode tab protruding from the electrode assembly; a first electrode lead having an inner end connected to the electrode tab; a second electrode lead having an inner end coupled to an outer end of the first electrode lead and an outer end extending outside of the battery case; a connection part coupling the first and second electrode leads to each other; an insulation part fused around a portion of each of the first and second electrode leads, the insulation part bonding the first and second electrode leads to the battery case; and a fusion prevention part located at a position at one surface of the first electrode lead, the fusion prevention part preventing the first electrode lead from being fused to the insulation part.

公开(公告)号：US11539098B2

公开(公告)日：2022-12-27

申请号：US16637538

申请日：2019-01-23

Applicant: LG Chem, Ltd.

Inventor： Na Yoon Kim ,  Yong Su Choi ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Soo Ji Hwang

IPC: H01M50/333 ,  H01M50/317 ,  F16K17/04

Abstract: To solve the above problem, a venting device inserted into a sealing part of a pouch of a secondary battery according to the present invention includes: a housing inserted between confronting surfaces of the sealing part and sealed together with the sealing part; an element made of a metal and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a ball disposed at an outlet-side of the passage, the ball configured to open and close the passage, wherein, in the element, an edge of an inner circumference of a surface of the outlet-side of the passage is chamfered or filleted so as to face the ball, and the element includes: a surface treatment layer formed on the chamfered or filleted surface; and a layer made of a polymer and fused to the surface treatment layer.

公开(公告)号：US20200044203A1

公开(公告)日：2020-02-06

申请号：US16499557

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Soo Ji Hwang ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Yong Su Choi ,  Na Yoon Kim ,  Min Hyeong Kang ,  Yong Kim

IPC: H01M2/02

Abstract: A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.

公开(公告)号：US10319956B2

公开(公告)日：2019-06-11

申请号：US15524056

申请日：2015-11-19

Applicant: LG CHEM, LTD.

Inventor： Hyung Kyun Yu ,  Sang Hun Kim ,  Won Pill Hwang ,  Soo Ji Hwang ,  Sang Suk Jung

IPC: H01M2/02 ,  H01M2/08 ,  H01M10/052

Abstract: The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.

公开(公告)号：US12107279B2

公开(公告)日：2024-10-01

申请号：US16499557

申请日：2018-11-16

Applicant: LG Chem, Ltd.

Inventor： Soo Ji Hwang ,  Sang Hun Kim ,  Hyung Kyun Yu ,  Yong Su Choi ,  Na Yoon Kim ,  Min Hyeong Kang ,  Yong Kim

IPC: H01M50/124 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131 ,  H01M50/55 ,  H01M50/557

CPC classification number: H01M50/124 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129 ,  H01M50/131 ,  H01M50/55 ,  H01M50/557

Abstract: A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.

公开(公告)号：US20210351429A1

公开(公告)日：2021-11-11

申请号：US17383013

申请日：2021-07-22

Applicant: LG Chem, Ltd.

Inventor： Sang Hun Kim ,  Yong Su Choi ,  Hyung Kyun Yu ,  Soo Ji Hwang ,  Na Yoon Kim ,  Yong Kim

IPC: H01M10/04 ,  H01M50/10 ,  H01M50/172 ,  H01M50/183 ,  H01M50/531

Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to the present invention, since an external protrusion protruding from the outside of an exterior constituting a body of the secondary battery as a component through which a secondary battery according to a related art is electrically connected to external electric equipment is removed, the secondary battery may be reduced in volume under the same capacity.