公开(公告)号：US20210234218A1

公开(公告)日：2021-07-29

申请号：US17051974

申请日：2019-10-18

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Joonwon Lim ,  In-Sung Uhm ,  Jae-Hyun Lee

IPC: H01M50/126 ,  H01M50/105 ,  H01M50/136 ,  H01M50/184 ,  H01M50/117

Abstract: Provided are a film for covering an entire outer surface of a secondary battery electrode assembly and a method for manufacturing the same, wherein the film comprises a mechanical support layer, a reduced graphene oxide layer disposed on an outer surface of the mechanical support layer, and a sealant layer disposed on an outer surface of the reduced graphene oxide layer, wherein reduced graphene oxide sheets of the reduced graphene oxide layer form electrostatic interaction between adjacent ones of the reduced graphene oxide sheets.

公开(公告)号：US10923772B2

公开(公告)日：2021-02-16

申请号：US15766997

申请日：2017-02-06

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  In-Sung Uhm ,  Je-Young Kim ,  Young-Ji Yuk

IPC: H01M10/0587 ,  H01M4/13 ,  H01M4/75 ,  H01M2/02 ,  H01M10/058 ,  H01M4/62 ,  H01M10/056 ,  H01M2/34 ,  H01M10/0565

Abstract: The present disclosure provides a cable-type secondary battery which includes: at least one inner electrode; a separation layer formed to surround the outer surface of the inner electrode and configured to prevent a short of the electrodes; a sheet-type outer electrode surrounding the separation layer or the inner electrode and formed by spiral winding; and a polymer electrolyte coating layer formed to surround the sheet-type outer electrode, wherein the sheet-type outer electrode is formed by spiral winding to avoid an overlap.

公开(公告)号：US10476098B2

公开(公告)日：2019-11-12

申请号：US15518634

申请日：2015-11-02

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  In-Sung Uhm ,  Je-Young Kim

IPC: H01M10/04 ,  H01M2/18 ,  H01M4/75 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2/02 ,  H01M4/66 ,  H01M4/78 ,  H01M10/052 ,  H01M10/0565 ,  H01M4/02

Abstract: Provided is a multilayer cable-type secondary battery including: a first electrode assembly including one or more first inner electrodes, a first separation layer surrounding outer surfaces of the first inner electrodes to prevent short circuit of electrodes and a sheet-type first outer electrode spirally wound to surround the first separation layer; a third separation layer surrounding the first electrode assembly to prevent short circuit of electrodes; and a second electrode assembly including one or more second inner electrodes surrounding an outer surface of the third separation layer, a second separation layer surrounding outer surfaces of the second inner electrodes to prevent short circuit of electrodes and a sheet-type second outer electrode spirally wound to surround the second separation layer.

公开(公告)号：US20180254462A1

公开(公告)日：2018-09-06

申请号：US15756832

申请日：2016-09-05

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Suk-In Noh ,  In-Sung Uhm ,  Je-Young Kim

IPC: H01M2/16 ,  H01M10/056 ,  H01M10/058 ,  H01M4/13 ,  H01M4/62 ,  H01M4/74

CPC classification number: H01M2/1673 ,  H01M4/13 ,  H01M4/62 ,  H01M4/667 ,  H01M4/74 ,  H01M4/78 ,  H01M10/0422 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/056 ,  H01M10/058

Abstract: The present disclosure provides a cable-type secondary battery which includes: a cable-type electrode assembly comprising an inner electrode and a separation layer surrounding the outer surface of the inner electrode to prevent a short-circuit between electrodes; and a sheet-form outer electrode surrounding the outer surface of the cable-type electrode assembly, and satisfies the mathematical formula of C≥W (wherein C is the circumference of the section perpendicular to the longitudinal direction of the cable-type electrode assembly, and W is the width of the sheet-form outer electrode).

公开(公告)号：US09972828B2

公开(公告)日：2018-05-15

申请号：US14041280

申请日：2013-09-30

Applicant: LG Chem, Ltd.

Inventor： Sang-Wook Woo ,  Ki-Tae Kim ,  Yo-Han Kwon

IPC: H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M4/1393 ,  H01M10/0525 ,  H01M10/052 ,  C25D3/30 ,  H01M4/02

CPC classification number: H01M4/0452 ,  C25D3/30 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/38 ,  H01M4/387 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The present invention relates to an anode active material for a lithium secondary battery, comprising a carbon material, and a coating layer formed on the surface of particles of the carbon material and having a plurality of Sn-based domains having an average diameter of 1 μm or less. The inventive anode active material having a Sn-based domains coating layer on the surface of a carbon material can surprisingly prevent stress due to volume expansion which generates by an alloy of Sn and lithium. Also, the inventive method for preparing an anode active material can easily control the thickness of the coating layer.

公开(公告)号：US20170237109A1

公开(公告)日：2017-08-17

申请号：US15518634

申请日：2015-11-02

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  In-Sung Uhm ,  Je-Young Kim

IPC: H01M10/04 ,  H01M2/18 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M10/0422 ,  H01M2/024 ,  H01M2/028 ,  H01M2/18 ,  H01M4/66 ,  H01M4/75 ,  H01M4/78 ,  H01M10/0413 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0587 ,  H01M2004/025 ,  H01M2220/20 ,  H01M2300/0085 ,  Y02E60/122

Abstract: Provided is a multilayer cable-type secondary battery including: a first electrode assembly including one or more first inner electrodes, a first separation layer surrounding outer surfaces of the first inner electrodes to prevent short circuit of electrodes and a sheet-type first outer electrode spirally wound to surround the first separation layer; a third separation layer surrounding the first electrode assembly to prevent short circuit of electrodes; and a second electrode assembly including one or more second inner electrodes surrounding an outer surface of the third separation layer, a second separation layer surrounding outer surfaces of the second inner electrodes to prevent short circuit of electrodes and a sheet-type second outer electrode spirally wound to surround the second separation layer.

公开(公告)号：US09660289B2

公开(公告)日：2017-05-23

申请号：US14484472

申请日：2014-09-12

Applicant: LG Chem, Ltd.

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

IPC: H01M4/00 ,  H01M10/04 ,  H01M2/14 ,  H01M4/02 ,  H01M4/13 ,  H01M4/64 ,  H01M10/052 ,  H01M10/058 ,  H01M4/66 ,  H01M4/78 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/04 ,  H01M4/131 ,  H01M4/36 ,  H01M4/62 ,  H01M4/80 ,  H01M10/0525

CPC classification number: H01M10/0422 ,  H01M2/14 ,  H01M4/02 ,  H01M4/0409 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/13 ,  H01M4/131 ,  H01M4/366 ,  H01M4/622 ,  H01M4/623 ,  H01M4/64 ,  H01M4/661 ,  H01M4/662 ,  H01M4/663 ,  H01M4/664 ,  H01M4/667 ,  H01M4/669 ,  H01M4/78 ,  H01M4/80 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/058 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A sheet-form electrode for a secondary battery includes a current collector, an electrode active material layer formed on one surface of the current collector, a porous polymer layer formed on the electrode active material layer, and a first porous supporting layer formed on the porous polymer layer. The sheet-form electrode can have supporting layers on at least one of the 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.

公开(公告)号：US09413030B2

公开(公告)日：2016-08-09

申请号：US14925188

申请日：2015-10-28

Applicant: LG Chem, Ltd.

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

IPC: H01M10/04 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2/18 ,  H01M4/13 ,  H01M4/76 ,  H01M4/75 ,  H01M2/16 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/66

CPC classification number: H01M10/0431 ,  H01M2/1606 ,  H01M2/18 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/661 ,  H01M4/662 ,  H01M4/663 ,  H01M4/666 ,  H01M4/668 ,  H01M4/669 ,  H01M4/75 ,  H01M4/765 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0025 ,  H01M2300/0085 ,  Y02E60/122

Abstract: Provided is a cable-type secondary battery extending longitudinally including a lithium ion supplying core comprising an electrolyte, an inner electrode support of a hollow structure formed to surround an outer surface of the lithium ion supplying core, an inner electrode formed on a surface of the inner electrode support and including an inner current collector and an inner electrode active material, a separation layer formed to surround an outer surface of the inner electrode to prevent a short circuit between electrodes, and an outer electrode formed to surround an outer surface of the separation layer and including an outer electrode active material layer and an outer current collector.

公开(公告)号：US20160133942A1

公开(公告)日：2016-05-12

申请号：US14897448

申请日：2014-11-27

Applicant: LG CHEM, LTD.

Inventor： Yo-Han Kwon ,  Byung-Hun Oh ,  Je-Young Kim ,  Sang-Wook Woo

IPC: H01M4/75 ,  H01M2/18 ,  H01M10/058 ,  H01M10/0525

CPC classification number: H01M4/75 ,  H01M2/18 ,  H01M4/13 ,  H01M4/78 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  Y02T10/7011

Abstract: Disclosed is a cable-type secondary battery including an inner electrode including an inner current collector and an inner electrode active material layer formed surrounding an outer surface of the inner current collector, a separation layer formed surrounding an outer surface of the inner electrode to insert the inner electrode inside, an outer electrode active material structure formed surrounding an outer surface of the separation layer to insert the separation layer inside, the outer electrode active material structure including a porous polymer support and an outer electrode active material layer formed on at least one of an upper surface and a lower surface of the porous polymer support, and an outer electrode including an outer current collector formed surrounding the outer electrode active material structure to insert the outer electrode active material structure inside.

Abstract translation: 公开了一种电缆型二次电池，其包括内部集电体和围绕内部集电体的外表面形成的内部电极活性物质层的内部电极，形成在内部电极的外表面周围的分离层， 内部电极，形成在所述分离层的外表面周围以将所述分离层插入的外部电极活性物质结构，所述外部电极活性物质结构包括多孔聚合物载体和外部电极活性物质层，所述外部电极活性物质结构形成在至少一个 多孔聚合物载体的上表面和下表面，以及外电极，其包括形成在外电极活性材料结构周围的外部集电体，以将外电极活性材料结构插入内部。

公开(公告)号：US09324978B2

公开(公告)日：2016-04-26

申请号：US14445144

申请日：2014-07-29

Applicant: LG Chem, Ltd.

Inventor： Yo-Han Kwon ,  Byung-Hun Oh ,  Sang-Hun Kim ,  Je-Young Kim ,  Hyo-Mi Kim

IPC: H01M10/04 ,  H01M2/08 ,  H01M2/02 ,  H01M4/75 ,  H01M10/052 ,  H01M4/02 ,  H01M10/058

CPC classification number: H01M2/08 ,  H01M2/022 ,  H01M2/0287 ,  H01M2/1094 ,  H01M4/66 ,  H01M4/74 ,  H01M4/75 ,  H01M10/0422 ,  H01M10/052 ,  H01M10/058 ,  H01M2002/0205 ,  H01M2004/025

Abstract: The present disclosure relates to a packaging for a cable-type secondary battery, surrounding an electrode assembly in the cable-type secondary battery, the packaging having a moisture-blocking layer comprising sealant polymer layers on both outer surfaces of a moisture-blocking film and a moisture-blocking film disposed between the sealant polymer layers, wherein the moisture-blocking layer is a tube form surrounding the electrode assembly, and the sealant polymer layers in both ends of the moisture-blocking layer are overlapped and adhered with each other in a predetermined part. The packaging according to the present disclosure can be used in a cable-type secondary battery to block moisture from being infiltrated into an electrode assembly, thereby improving the life characteristics of the battery and preventing the deterioration of battery performances.

Abstract translation: 本公开涉及一种围绕电缆型二次电池中的电极组件的电缆型二次电池的封装，该封装具有在防潮膜的两个外表面上包含密封剂聚合物层的防潮层，以及 设置在密封剂聚合物层之间的防潮膜，其中防潮层是围绕电极组件的管形式，并且防潮层的两端中的密封剂聚合物层彼此重叠并粘附在一个 预定部分。 根据本公开的包装可以用于电缆型二次电池中以阻止水分渗透到电极组件中，从而改善电池的寿命特性并防止电池性能的劣化。