公开(公告)号：US11201357B2

公开(公告)日：2021-12-14

申请号：US16635409

申请日：2018-12-21

Applicant: LG Chem, Ltd.

Inventor： Jung-Pil Lee ,  In-Sung Uhm ,  Sung-Joong Kang ,  Hyo-Sik Kim

IPC: H01M10/0587 ,  H01M4/36 ,  H01M4/62 ,  H01M4/78 ,  H01M10/0562 ,  H01M10/0565 ,  H01M4/02

Abstract: A flexible secondary battery includes an electrode support; a sheet-type internal electrode wound helically outside of the electrode support; a sheet-type first solid electrolyte layer wound helically outside of the internal electrode; a sheet-type bipolar electrode wound helically outside of the first solid electrolyte layer; a sheet-type second solid electrolyte layer wound helically outside of the bipolar electrode; and a sheet-type external electrode wound helically outside of the second solid electrolyte layer, wherein each of the first and second solid electrolyte layers include an organic solid electrolyte, the internal electrode is provided with insulation coating portions at both longitudinal ends of one surface facing the first solid electrolyte layer, the external electrode is provided with insulation coating portions at both longitudinal ends of one surface facing the second solid electrolyte layer, and the bipolar electrode is provided with insulation coating portions at both longitudinal ends of both surfaces.

公开(公告)号：US20210234217A1

公开(公告)日：2021-07-29

申请号：US15734836

申请日：2019-10-21

Applicant: LG Chem, Ltd.

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

IPC: H01M50/126 ,  H01M50/117 ,  H01M50/131 ,  H01M50/107 ,  H01M50/183

Abstract: A packaging for a flexible secondary battery improves the vapor barrier performance and flexibility of the flexible secondary battery. The packaging is in a shape of a tube that is wrapped around an outer surface of an electrode assembly, and includes a mechanical support layer; a reduced graphene oxide layer disposed on the mechanical support layer and including a plurality of reduced graphene oxide sheets; a heat shrink layer disposed on the reduced graphene oxide layer; and a sealant layer disposed on the heat shrink layer, wherein the plurality of reduced graphene oxide sheets in the reduced graphene oxide layer forms electrostatic interaction between adjacent sheets of the plurality of reduced graphene oxide sheets. A flexible secondary battery including the packaging is also provided.

公开(公告)号：US10964924B2

公开(公告)日：2021-03-30

申请号：US16753024

申请日：2019-03-29

Applicant: LG Chem, Ltd.

Inventor： In-Sung Uhm ,  Ju-Ryoun Kim ,  Yong-Hee Lee ,  Sang-Hun Kim ,  Jae-Hyun Lee ,  Yong-Su Choi ,  Soo-Ji Hwang

IPC: B32B27/28 ,  B32B27/32 ,  H01M2/02

Abstract: Provided is a packaging for a flexible secondary battery, including: a first polymer resin layer; a barrier layer formed on the first polymer resin layer for interrupting moisture and gases; a parylene layer including parylene on at least one surface of the barrier layer; and a second polymer resin layer formed on the barrier layer, wherein the parylene layer has a thickness of 0.1-2.5 μm. A flexible secondary battery including the packaging is also provided.

公开(公告)号：US20210036378A1

公开(公告)日：2021-02-04

申请号：US16635409

申请日：2018-12-21

Applicant: LG Chem, Ltd.

Inventor： Jung-Pil Lee ,  In-Sung Uhm ,  Sung-Joong Kang ,  Hyo-Sik Kim

IPC: H01M10/0587 ,  H01M4/36 ,  H01M10/0565 ,  H01M10/0562 ,  H01M4/62 ,  H01M4/78

Abstract: A flexible secondary battery includes an electrode support; a sheet-type internal electrode wound helically outside of the electrode support; a sheet-type first solid electrolyte layer wound helically outside of the internal electrode; a sheet-type bipolar electrode wound helically outside of the first solid electrolyte layer; a sheet-type second solid electrolyte layer wound helically outside of the bipolar electrode; and a sheet-type external electrode wound helically outside of the second solid electrolyte layer, wherein each of the first and second solid electrolyte layers include an organic solid electrolyte, the internal electrode is provided with insulation coating portions at both longitudinal ends of one surface facing the first solid electrolyte layer, the external electrode is provided with insulation coating portions at both longitudinal ends of one surface facing the second solid electrolyte layer, and the bipolar electrode is provided with insulation coating portions at both longitudinal ends of both surfaces.

公开(公告)号：US20200212495A1

公开(公告)日：2020-07-02

申请号：US16630302

申请日：2018-09-04

Applicant: LG Chem, Ltd.

Inventor： Jung-Pil Lee ,  In-Sung Uhm

IPC: H01M10/0585 ,  H01M10/052 ,  H01M4/74 ,  H01M4/04 ,  H01M2/26

Abstract: A method for manufacturing a flexible battery includes the steps of: preparing an electrode current collector having a current collecting portion provided with at least one through-hole; carrying out electrospinning of electrode slurry including an electrode active material, a binder, a conductive material and a solvent on at least one surface of an edge of the current collecting portion and over the through-hole to form an electrode active material layer on at least one surface of the electrode current collector; and forming a battery provided with the electrode current collector having the electrode active material layer formed thereon as an electrode. A flexible battery obtained from the method is also provided.

公开(公告)号：US10586968B2

公开(公告)日：2020-03-10

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 ,  H01M4/74 ,  H01M4/13 ,  H01M4/62 ,  H01M10/058 ,  H01M10/04 ,  H01M4/78 ,  H01M4/66 ,  H01M10/052

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：US20180309133A1

公开(公告)日：2018-10-25

申请号：US15767024

申请日：2016-10-21

Applicant: LG Chem, Ltd.

Inventor： In-Sung Uhm ,  Je-Young Kim ,  Jong-Hwa Choi ,  Suk-In Noh ,  Young-Ji Yuk

IPC: H01M4/74 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0587 ,  H01M4/66 ,  H01M4/75 ,  H01M4/62 ,  H01M2/18

Abstract: Disclosed is a cable-type secondary battery, including: a winding core; an inner electrode support wound on the outside of the winding core in the form of a spaced spring so that the winding core may be exposed partially; a sheet-type first inner electrode formed on the outside of the exposed winding core by spiral winding; a sheet-type first separation layer formed on the outside of the first inner electrode by spiral winding; a sheet-type second inner electrode formed on the outside of the first separation layer by spiral winding; a second separation layer formed on the outside of the second inner electrode by spiral winding; and an outer electrode formed on the outside of the second separation layer by spiral winding.

公开(公告)号：US20180034108A1

公开(公告)日：2018-02-01

申请号：US15549575

申请日：2016-02-11

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M2/02 ,  H01M4/66 ,  H01M4/74 ,  H01M10/04 ,  H01M4/78

CPC classification number: H01M10/0587 ,  H01M2/0267 ,  H01M4/662 ,  H01M4/663 ,  H01M4/668 ,  H01M4/74 ,  H01M4/75 ,  H01M4/78 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/025 ,  H01M2220/20 ,  H01M2220/30

Abstract: A cable type secondary battery includes an inner electrode support; and a sheet-like inner electrode-separation layer-outer electrode complex which is spirally wound around the outer side of the inner electrode support. The inner electrode-separation layer-outer electrode complex is formed such that an inner electrode, a separation layer, and an outer electrode are compressed integrally. According to one embodiment, an electrode and a separation layer are bonded integrally so that the separation layer in close contact with the electrode absorbs electrolyte so as to induce a uniform supply of the electrolyte to an outer electrode active material layer, thereby increasing the stability and performance of a cable type secondary battery. In addition, the cable type secondary battery has a sheet-like electrode, whereby the resistance of the cable type secondary battery is reduced and the performance of the battery may be improved.

公开(公告)号：US20170250448A1

公开(公告)日：2017-08-31

申请号：US15518611

申请日：2015-11-02

Applicant: LG Chem, Ltd.

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

IPC: H01M10/0587 ,  H01M4/75 ,  H01M10/0525 ,  H01M2/18

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

公开(公告)号：US11646426B2

公开(公告)日：2023-05-09

申请号：US16641057

申请日：2018-11-08

Applicant: LG Chem, Ltd. ,  Ulsan National Institute of Science and Technology

Inventor： In-Sung Uhm ,  Sang-Young Lee ,  Sung-Joong Kang ,  Jeong-A Kim ,  Je-Young Kim ,  Ju-Myung Kim ,  Yong-Hee Lee ,  Jae-Hyun Lee

IPC: H01M4/80 ,  H01G11/28 ,  H01G11/30 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/36 ,  H01M4/66 ,  H01M4/02

CPC classification number: H01M4/806 ,  H01G11/28 ,  H01G11/30 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/366 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/027

Abstract: Disclosed are an electrode having a three-dimensional structure, the electrode including: a porous nonwoven web including a plurality of polymer fibers that form an interconnected porous network; an active material composite positioned among the polymer fibers and including active material particles and a first conductive material; and a second conductive material positioned on an outer surface of the active material composite, wherein the interconnected porous network is filled homogeneously with the active material composite and the second conductive material to form a super lattice structure, and an electrochemical device including the electrode having a three-dimensional structure.