公开(公告)号：US20200295410A1

公开(公告)日：2020-09-17

申请号：US16497235

申请日：2018-07-10

Applicant: LG Chem, Ltd.

Inventor： Chul Gi Hong ,  Jae Hyun Lee ,  Seok Koo Kim ,  Dong Kyu Kim ,  Dae Soo Kim

IPC: H01M10/42 ,  H01M10/052 ,  H01M4/38 ,  G01R31/392 ,  G01R31/389

Abstract: A method for regenerating a lithium secondary battery including a lithium resupply step in which a lithium resupply electrode is provided in the secondary battery, and the positive electrode is set as a counter electrode, and the lithium resupply electrode is set as a working electrode to charge lithium ions to the positive electrode through the lithium resupply electrode and a negative electrode discharging step in which, after the lithium ions are resupplied to the positive electrode through the lithium resupply step, the lithium resupply electrode is set as the counter electrode, and the negative electrode is set as the working electrode to completely discharge the negative electrode up to a discharge limit.

公开(公告)号：US10122011B2

公开(公告)日：2018-11-06

申请号：US14485976

申请日：2014-09-15

Applicant: LG Chem, Ltd.

Inventor： Iljoon Lee ,  Jae Hyun Lee ,  Jihyun Kim

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M10/052 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/02

Abstract: Disclosed are an electrode for secondary batteries including an electrode mixture coated on one surface or opposite surface of an electrode current collector, and a method of manufacturing the same. The electrode mixture includes an electrode mixture layer A, which is a portion close to a current collector, and an electrode mixture layer, which is a portion distant from a current collector. The electrode mixture layer A includes a mixture of two active materials, average diameters of which are different, and the electrode mixture layer B includes active materials, average diameters of which are the same.

公开(公告)号：US09761864B2

公开(公告)日：2017-09-12

申请号：US14495015

申请日：2014-09-24

Applicant: LG Chem, Ltd.

Inventor： Hyeokmoo Lee ,  Jae Hyun Lee ,  Su Rim Lee ,  Song Taek Oh ,  JungSeok Choi ,  Ji Hye Park

IPC: H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/1315 ,  H01M4/02

CPC classification number: H01M4/131 ,  H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M2004/028

Abstract: Disclosed are a cathode active material for high voltage lithium secondary batteries and a lithium secondary battery including the same and, more particularly, the present invention relates to a cathode active material for lithium secondary batteries that includes a lithium transition metal oxide having a lithium molar fraction of greater than 1, containing a relative excess of nickel, and having a composition represented by Formula 1 below, wherein the lithium transition metal oxide has a Li2MnO3-like structure phase: Li1+aNibCocMn1−(a+b+c+d)MdO2-tAt  (1) wherein 0.05≦a≦0.2, 0.4≦b≦0.7, 0.1≦c≦0.4, 0≦d≦0.1, and 0≦t

公开(公告)号：US09214705B2

公开(公告)日：2015-12-15

申请号：US14540799

申请日：2014-11-13

Applicant: LG CHEM, LTD.

Inventor： Jae Hyun Lee ,  Seunghyun Chung ,  Geun Chang Chung

IPC: H01M10/6554 ,  H01M2/02 ,  H01M10/625 ,  H01M10/04 ,  B60L3/00 ,  B60L11/18 ,  H01M10/654 ,  H01M10/6556 ,  H01M10/613 ,  H01M10/65 ,  H01M10/6555 ,  H01M10/647 ,  H01M10/60 ,  H01M10/61 ,  H01M10/653

CPC classification number: H01M10/613 ,  B60L3/0046 ,  B60L3/0069 ,  B60L11/1868 ,  B60L11/187 ,  B60L11/1874 ,  B60L11/1879 ,  B60L11/1892 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  H01M2/024 ,  H01M10/0431 ,  H01M10/60 ,  H01M10/61 ,  H01M10/625 ,  H01M10/647 ,  H01M10/65 ,  H01M10/653 ,  H01M10/654 ,  H01M10/6554 ,  H01M10/6555 ,  H01M10/6556 ,  H01M10/6567 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7066 ,  Y02T90/34 ,  Y10S903/907

Abstract: Disclosed herein is a battery cell configured such that at least one electrode assembly of a structure having a cathode, an anode, and a separator interposed between the cathode and the anode is mounted in a battery case, at least one heat dissipation member to dissipate heat generated in the electrode assembly during charge and discharge of the battery cell or upon occurrence of a short circuit is disposed in the electrode assembly and/or is in contact with an outer surface of the electrode assembly, and a portion of the heat dissipation member is exposed outward from the electrode assembly.

Abstract translation: 本文公开了一种电池单元，其被配置为使得具有阴极，阳极和置于阴极和阳极之间的隔膜的结构的至少一个电极组件安装在电池壳体中，至少一个散热构件以散热 在电池组件的充电和放电期间或者在出现短路时在电极组件中产生的电极组件和/或与电极组件的外表面接触并且部分散热部件是 从电极组件向外露出。

公开(公告)号：US20140349170A1

公开(公告)日：2014-11-27

申请号：US14453778

申请日：2014-08-07

Applicant: LG Chem, Ltd.

Inventor： Daehong Kim ,  Jae Hyun Lee ,  Jihyun Kim

IPC: H01M4/131 ,  H01M4/48 ,  H01M4/139 ,  H01M4/70

CPC classification number: H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/48 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/661 ,  H01M4/70 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49117

Abstract: Disclosed are a method of manufacturing an electrode for secondary batteries that includes surface-treating a current collector so as to have a morphology wherein a surface roughness Ra of 0.001 μm to 10 μm is formed over the entire surface thereof to enhance adhesion between an electrode active material and the current collector and an electrode for secondary batteries that is manufactured using the method.

Abstract translation: 公开了一种二次电池用电极的制造方法，其特征在于，对集电体进行表面处理，使其具有在其整个表面上形成表面粗糙度Ra为0.001μm〜10μm的形态，以增强电极活性物质 材料和集电体以及使用该方法制造的二次电池用电极。

公开(公告)号：US11081765B2

公开(公告)日：2021-08-03

申请号：US16470026

申请日：2018-01-23

Applicant: LG CHEM, LTD.

Inventor： Chul Gi Hong ,  Jae Hyun Lee ,  Dong Kyu Kim ,  Dae Soo Kim

IPC: H01M50/609 ,  H01M50/618 ,  H01M50/627 ,  H01M50/673 ,  H01M50/682 ,  H01M50/60 ,  H01M50/691 ,  H01M10/42

Abstract: The present invention relates to a battery cell refillable with an electrolyte, an electrolyte refilling system for a battery pack configured to include a plurality of battery cells, and an electrolyte refilling method for a battery pack of an electric vehicle.

公开(公告)号：US11024845B2

公开(公告)日：2021-06-01

申请号：US13863623

申请日：2013-04-16

Applicant: LG CHEM, LTD.

Inventor： YounKyoung Lee ,  SeongMin Lee ,  Jihyun Kim ,  SooHyun Lim ,  Jae Hyun Lee ,  Jong Ho Jeon

IPC: H01M4/485 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/62 ,  H01M10/0565 ,  H01M4/1391 ,  H01M10/052 ,  H01M4/131 ,  H01M4/02

Abstract: Disclosed are an electrode active material containing moisture in an amount less than 2,000 ppm per 1 g of lithium metal oxide or moisture in an amount less than 7,000 ppm per 1 cm3 of the lithium metal oxide, and an electrode containing moisture in an amount less than 2,000 ppm per 1 cm3 of an electrode mix.

公开(公告)号：US09899663B2

公开(公告)日：2018-02-20

申请号：US14482266

申请日：2014-09-10

Applicant: LG Chem, Ltd.

Inventor： Soo Hyun Lim ,  Jae Hyun Lee ,  Jihyun Kim

IPC: H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/50 ,  H01M4/52 ,  H01M4/02 ,  H01M10/42

CPC classification number: H01M4/131 ,  H01M4/483 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292 ,  H01M2200/20 ,  H01M2220/20 ,  Y02T10/7011

Abstract: Disclosed is a lithium secondary battery including: an electrode assembly including a cathode including a cathode mixture layer formed on a cathode current collector, an anode including an anode mixture layer formed on an anode current collector, and a separator disposed between the cathode and the anode; and an electrolyte, wherein the anode includes lithium titanium oxide (LTO) as an anode active material, and four planes of the cathode mixture layer have the same or greater length than four planes of the anode mixture layer and thus the cathode mixture layer has the same or greater area than the anode mixture layer.

公开(公告)号：US09825293B2

公开(公告)日：2017-11-21

申请号：US14478695

申请日：2014-09-05

Applicant: LG CHEM, LTD.

Inventor： Soo Hyun Lim ,  Jae Hyun Lee ,  Jihyun Kim

IPC: H01M4/485 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/58 ,  H01M10/052 ,  H01M4/525 ,  H01M10/42

CPC classification number: H01M4/485 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M2010/4292 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the anode includes a lithium titanium oxide (LTO) as an anode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V.

公开(公告)号：US09673444B2

公开(公告)日：2017-06-06

申请号：US14483569

申请日：2014-09-11

Applicant: LG Chem, Ltd.

Inventor： Daehong Kim ,  Jae Hyun Lee ,  Tae Jin Park

IPC: H01M4/131 ,  H01M4/525 ,  H01M4/52 ,  H01M4/04 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/66 ,  C25D7/06 ,  H01M4/485 ,  H01M4/50 ,  H01M4/1391 ,  H01M10/052

CPC classification number: H01M4/131 ,  C25D7/0692 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/661 ,  H01M4/667 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: Disclosed is a method of manufacturing an electrode for a secondary battery including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector. Provided are a method including surface-treating the current collector such that an aluminum oxide (Al2O3) layer of 40 nm or less is formed on the current collector so as to enhance adhesion between the electrode mixture and the current collector, and an electrode for a secondary battery manufactured using the same.