公开(公告)号：US20150017500A1

公开(公告)日：2015-01-15

申请号：US14477305

申请日：2014-09-04

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Hye-Ran Jung ,  Eun-Kyung Kim ,  Je-Young Kim ,  Hyo-Mi Kim

IPC: H01M10/04 ,  H01M4/587 ,  H01M4/42 ,  H01M4/46 ,  H01M4/04 ,  H01M4/58 ,  H01M4/485 ,  H01M4/525 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/44

CPC classification number: H01M10/0422 ,  H01M2/162 ,  H01M2/1653 ,  H01M4/02 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/043 ,  H01M4/13 ,  H01M4/139 ,  H01M4/381 ,  H01M4/382 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M4/44 ,  H01M4/466 ,  H01M4/485 ,  H01M4/525 ,  H01M4/581 ,  H01M4/587 ,  H01M4/621 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M4/64 ,  H01M4/661 ,  H01M4/662 ,  H01M4/663 ,  H01M4/667 ,  H01M4/668 ,  H01M4/669 ,  H01M4/70 ,  H01M4/74 ,  H01M4/75 ,  H01M4/78 ,  H01M10/04 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0085 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.

Abstract translation: 本公开内容提供了一种用于二次电池的片状电极，包括集电器; 形成在集电体的一个面上的电极活性物质层; 形成在所述电极活性物质层上并且包含导电材料和粘合剂的导电层; 以及形成在导电层上的第一多孔支撑层。 根据本公开的用于二次电池的片状电极在其至少一个表面上具有支撑层，以显示出令人惊奇的改善的柔性，并且防止电极活性材料层从集电体释放，即使施加强烈的外力 电极，从而防止电池容量的降低和电池的循环寿命特性的提高。

公开(公告)号：US20140272506A1

公开(公告)日：2014-09-18

申请号：US14285761

申请日：2014-05-23

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Sang-Wook Woo ,  Hyo-Mi Kim ,  Je-Young Kim

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/30 ,  H01M4/75 ,  H01M10/0436 ,  H01R24/58 ,  H01R31/06 ,  H01R2101/00 ,  H01R2103/00

Abstract: Disclosed is a cable-type secondary battery comprising at least one inner electrode layer including an inner electrode active material formed on a surface of an inner current collector having a horizontal cross section of a predetermined shape and extending in a lengthwise direction, a separation layer formed to surround the inner electrode layer, and an outer electrode layer formed to surround the separation layer and including an outer electrode active material formed on a surface of an outer current collector, and the cable-type secondary battery further comprises a first connection terminal that is electrically connected to the outer current collector and formed at one end of the cable-type secondary battery, and a second connection terminal that is electrically connected to the inner current collector and formed at the other end of the cable-type secondary battery.

Abstract translation: 公开了一种电缆型二次电池，其包括至少一个内部电极层，所述内部电极层包括形成在具有预定形状的水平横截面并在长度方向上延伸的内部集电体的表面上的内部电极活性材料，形成的分离层 围绕所述内部电极层的外部电极层和形成为包围所述分离层并且包括形成在所述外部集电体的表面上的外部电极活性物质的外部电极层，所述电缆型二次电池还包括：第一连接端子， 电连接到外部集电器并形成在电缆型二次电池的一端，以及第二连接端子，其电连接到内部集电器并形成在电缆型二次电池的另一端。

公开(公告)号：US20140234672A1

公开(公告)日：2014-08-21

申请号：US14263007

申请日：2014-04-28

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Sang-Wook Woo ,  Hye-Ran Jung ,  Je-Young Kim

IPC: H01M10/46 ,  H01M10/052 ,  H01M10/04

CPC classification number: H01M10/46 ,  H01M2/02 ,  H01M2/0267 ,  H01M2/0277 ,  H01M4/661 ,  H01M4/662 ,  H01M4/74 ,  H01M4/75 ,  H01M10/0422 ,  H01M10/052 ,  H01M10/058 ,  Y02T10/7011

Abstract: The present invention provides a cable-type secondary battery capable of wireless charge. The cable-type secondary battery according to the present invention can be applied in a wireless charging method, thereby being conveniently charged as compared with conventional batteries which are charged with wires, and has a charging coil configured in a wound form, which can overcome the problem of local charge caused by the shape of conventional cable-type batteries. Also, the charging coil is formed in a packaging to act as a reinforcement material, thereby enhancing the mechanical property of the cable-type secondary battery.

Abstract translation: 本发明提供能够进行无线充电的电缆式二次电池。 根据本发明的电缆型二次电池可以以无线充电方式应用，从而与带有电线的常规电池相比方便地充电，并且具有以缠绕形式配置的充电线圈，其可以克服 常规电缆型电池形状引起的局部电荷问题。 此外，充电线圈形成在包装中以用作增强材料，从而增强电缆型二次电池的机械性能。

公开(公告)号：US20140186672A1

公开(公告)日：2014-07-03

申请号：US14199228

申请日：2014-03-06

Applicant: LG CHEM, LTD.

Inventor： Yo-Han Kwon ,  Sang-Wook Woo ,  Hye-Ran Jung ,  Je-Young Kim

IPC: H01M10/04

CPC classification number: H01M10/0422 ,  H01M2/1653 ,  H01M4/66 ,  H01M4/70 ,  H01M4/75 ,  H01M6/44 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/058 ,  H01M2004/025 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core, and an inner electrode active material layer formed on the surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector.The core disposed in the inner electrode having an open structure, from which the electrolyte of the core for supplying lithium ions can be easily penetrated into an electrode active material, thereby facilitating the supply and exchange of lithium ions.

Abstract translation: 本发明涉及具有预定形状的水平横截面并且纵向延伸的电缆型二次电池，其包括：用于提供锂离子的芯，其包括电解质; 内部电极，其包括围绕所述芯的外表面的开放式内部集电体和形成在所述内部集电体的表面上的内部电极活性物质层; 围绕所述内部电极的外表面的分离层，以防止电极之间的短路; 以及围绕分离层的外表面并包括外电极活性材料层和外部集电器的外电极。 设置在内部电极中的芯体具有开放结构，用于提供锂离子的芯的电解质可以从该核心容易地穿透到电极活性材料中，从而便于锂离子的供应和交换。

公开(公告)号：US08758939B2

公开(公告)日：2014-06-24

申请号：US13845916

申请日：2013-03-18

Applicant: LG Chem, Ltd.

Inventor： Ki Tae Kim ,  Je-Young Kim ,  Dong-Sub Jung ,  Seung Tae Hong ,  Young Sun Choi

IPC: H01M4/134

CPC classification number: H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M10/052

Abstract: Disclosed is an anode active material including: a crystalline phase comprising Si and a Si-metal alloy; and an amorphous phase comprising Si and a Si-metal alloy, wherein the metal of the Si-metal alloy of the crystalline phase is the same as or different from the metal of the Si-metal alloy of the amorphous phase.

Abstract translation: 公开了一种负极活性材料，其包括：包含Si和Si-金属合金的结晶相; 以及包含Si和Si-金属合金的非晶相，其中所述结晶相的所述Si金属合金的金属与所述非晶相的Si金属合金的金属相同或不同。

公开(公告)号：US20140038015A1

公开(公告)日：2014-02-06

申请号：US14047308

申请日：2013-10-07

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Je-Young Kim

IPC: H01M10/04 ,  H01M2/10

CPC classification number: H01M10/0422 ,  H01M2/0237 ,  H01M2/043 ,  H01M2/046 ,  H01M2/1055 ,  H01M2/1066 ,  H01M2/1072 ,  H01M2/1083 ,  H01M2/26 ,  H01M2/30 ,  H01M4/70 ,  H01M4/75 ,  H01M10/0413 ,  H01M10/0436

Abstract: A cable-type secondary battery, includes an electrode assembly including first and second polarity electrodes with a thin and long shape, each having a current collector whose cross-section perpendicular to its longitudinal direction is a circular, asymmetrical oval or polygonal shape, an electrode active material applied onto the surface of the current collector, and a separator or an electrolyte layer interposed between the electrodes; and a cover member surrounding the electrode assembly, wherein the cable-type secondary battery is provided with a first polarity terminal and a second polarity terminal connected to the first polarity electrode and the second polarity electrode, respectively, at the first end of the cable-type secondary battery; a housing cap configured to fix the first and second polarity terminals and cover the first end of the cable-type secondary battery; and a length-adjustable coupling unit at a second end of the cable-type secondary battery.

Abstract translation: 一种电缆式二次电池，包括：电极组件，包括具有薄且长形状的第一和第二极性电极，每个具有集电器，其集成电路的横截面垂直于其纵向方向为圆形，不对称的椭圆形或多边形，电极 施加到集电体的表面上的活性物质和插在电极之间的隔膜或电解质层; 以及围绕所述电极组件的盖构件，其中所述电缆型二次电池设置有分别在所述电缆连接器的所述第一端处连接到所述第一极性电极和所述第二极性电极的第一极性端子和第二极性端子， 型二次电池; 壳体盖，其构造成固定所述第一极性端子和所述第二极性端子并且覆盖所述电缆型二次电池的所述第一端; 以及在所述电缆型二次电池的第二端处的长度可调耦合单元。

公开(公告)号：US12249703B2

公开(公告)日：2025-03-11

申请号：US17042514

申请日：2019-06-12

Applicant: LG CHEM, LTD.

Inventor： Su-Min Lee ,  Je-Young Kim ,  Sun-Young Shin ,  Yong-Ju Lee

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode active material for a lithium secondary battery, including silicon oxide particles, wherein the silicon oxide has a full width at half maximum peak ranging between 2 and 6 in a particle size distribution and the silicon oxide particles have an average particle size (D50) of 1 μm to 20 μm, and a negative electrode and a lithium secondary battery comprising the same. The negative electrode active material according to the disclosure has outstanding life performance and output performance.

公开(公告)号：US12080889B2

公开(公告)日：2024-09-03

申请号：US17256451

申请日：2020-01-31

Applicant: LG CHEM, LTD.

Inventor： Lilin Piao ,  Je-Young Kim ,  Sang-Wook Woo ,  Hee-Won Choi

IPC: H01M4/587 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/587 ,  H01M4/0404 ,  H01M4/043 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20

Abstract: A negative electrode for a lithium secondary battery including a negative electrode active material layer. The negative electrode active material layer is formed by steps of coating a negative electrode mixture slurry including spheroidized natural graphite particles as a negative electrode active material on at least one surface of a negative electrode current collector, followed by drying and pressing the negative electrode mixture slurry on the at least one surface of the negative electrode current collector. The spheroidized natural graphite particles include a plurality of pores. The negative electrode active material layer has a Brunauer-Emmett-Teller (BET) specific surface area of the negative electrode active material layer after the pressing is larger than a BET specific surface area of the negative electrode active material layer before pressing. A difference in the BET specific surface area before and after pressing ranges from 0.9 m2/g to 1.2 m2/g.

公开(公告)号：US11575123B2

公开(公告)日：2023-02-07

申请号：US16836554

申请日：2020-03-31

Applicant: LG CHEM, LTD.

Inventor： Sun-Young Shin ,  Dong-Hyuk Kim ,  Yong-Ju Lee ,  Je-Young Kim ,  Su-Min Lee

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/02

Abstract: A negative electrode which satisfies a need for high energy density while allowing high-speed charging of a battery. A lithium secondary battery including the negative electrode is also provided. The negative electrode includes: a first negative electrode active material having a first core including a silicon oxide-based composite and a carbon coating layer covering the first core including a silicon oxide-based composite; and a second negative electrode active material having a second core including an artificial graphite and a carbon coating layer covering the second core.

公开(公告)号：US10593930B2

公开(公告)日：2020-03-17

申请号：US14439524

申请日：2014-06-20

Applicant: LG Chem, Ltd.

Inventor： Yong-Ju Lee ,  Je-Young Kim ,  Mi-Rim Lee ,  Byung-Hun Oh ,  Seung-Youn Choi

IPC: H01M4/133 ,  H01M4/36 ,  H01M4/62 ,  H01M10/052 ,  H01M4/38 ,  H01M4/46 ,  H01M4/134 ,  H01M10/42 ,  H01M4/02 ,  H01M4/587

Abstract: Disclosed is an electrode active material for a lithium secondary battery including a first material including a carbon material, a second material of a nanostructure formed on the first material, the second material including at least one selected from a metal and a metalloid capable of reversibly alloying with lithium, and a third material present on a surface of at least one of the first material and the second material to control a side reaction with an electrolyte solution, an electrode including the electrode active material, and a lithium secondary battery having the electrode.