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公开(公告)号：US20200067069A1
公开(公告)日：2020-02-27
申请号：US16489273
申请日：2018-06-22
Inventor： Eunkyung PARK , Jang Wook CHOI , Sung Hyeon PARK , Minchul JANG , Suk Il YOUN , Byoungkuk SON , Se Ho PARK
IPC: H01M4/04 , D01D5/00 , D01F9/14 , H01M4/36 , H01M4/485 , H01M4/587 , H01M10/0568 , H01M10/0569
Abstract: A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.
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公开(公告)号：US20190319255A1
公开(公告)日：2019-10-17
申请号：US16467200
申请日：2018-07-04
Applicant: LG CHEM, LTD.
Inventor： Suk Il YOUN , Byoungkuk SON , Junghun CHOI , Minchul JANG
IPC: H01M4/04 , H01M4/1395 , H01M4/66
Abstract: A method for manufacturing a lithium electrode, more particularly, a method for manufacturing a lithium electrode having a thin and uniform thickness by, when manufacturing the lithium electrode, first forming a protective layer capable of protecting lithium metal on the surface treated substrate with a plasma and corona process, and depositing lithium metal on the protective layer and then transferring the deposited lithium metal layer to a current collector. The energy density of the lithium secondary battery manufactured using the lithium electrode thus manufactured can be improved.
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公开(公告)号：US20210028484A1
公开(公告)日：2021-01-28
申请号：US17040500
申请日：2019-10-31
Applicant: LG CHEM, LTD.
Inventor： Eunkyung PARK , Minchul JANG , Suk Il YOUN , Byoungkuk SON , Changhun PARK , Doyeon KIM , Bora JUNG , Yeilin HAM
Abstract: A lithium secondary battery including a positive electrode, a negative electrode comprising a negative electrode current collector, and an electrolyte disposed between the positive electrode and the negative electrode; and a lithium metal layer on the negative electrode current collector in the negative electrode. The electrolyte includes a first electrolyte layer and a second electrolyte disposed on the first electrolyte layer, wherein the first electrolyte layer faces the negative electrode, and the second electrolyte layer faces the positive electrode. The first electrolyte layer has higher ion conductivity than the second electrolyte layer, and wherein the lithium metal layer is formed by migration of lithium ions from the positive electrode after charging.
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Patent Agency Ranking
公开(公告)号：US20210083250A1
公开(公告)日：2021-03-18
申请号：US16644624
申请日：2018-12-17
Applicant: LG CHEM, LTD.
Inventor： Suk Il YOUN , Minchul JANG , Byoungkuk SON , Yeilin HAM , Da Young SUNG
IPC: H01M2/16 , H01M10/0525
Abstract: A porous separator including a porous layer including plate-type inorganic particles, and a first binder polymer located on a part of or all surfaces of the plate-type inorganic particles, wherein the first binder polymer connects and fixes the plate-type inorganic particles, and an electrochemical device including the same.
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5.发明申请公开(公告)号：US20200075939A1
公开(公告)日：2020-03-05
申请号：US16467195
申请日：2018-04-09
Applicant: LG CHEM, LTD.
Inventor： Byoungkuk SON , Minchul JANG , Junghun CHOI , Suk Il YOUN , Eunkyung PARK , Donghyeon KANG , Bora JUNG
IPC: H01M4/36 , H01M4/38 , H01M4/48 , H01M10/052 , H01M4/62 , H01M4/1395 , H01M4/134 , H01M4/04
Abstract: A negative electrode for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same. The negative electrode for a lithium secondary battery is prepared while being blocked from atmosphere through a release coating film, which is effective in reducing a thickness of a surface oxide layer by delaying the surface oxide layer formation of lithium metal caused by oxygen and moisture in the atmosphere.
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公开(公告)号：US20200321598A1
公开(公告)日：2020-10-08
申请号：US16636442
申请日：2018-08-17
Applicant: LG CHEM, LTD.
Inventor： Da Young SUNG , Se Ho PARK , Minchul JANG , Suk Il YOUN , Byoungkuk SON , Eunkyung PARK
IPC: H01M4/04 , H01M10/0562 , H01M4/62 , H01M4/13915 , H01M4/1393
Abstract: A method for manufacturing an electrode for an all solid battery including the steps of coating a current collector with a slurry including an active material, a conductive material, and a polyimide-based binder; and melting a solid electrolyte having a melting temperature of 50° C. to 500° C. and applying it onto the coating layer and an electrode manufactured therefrom.
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7.发明申请公开(公告)号：US20200274146A1
公开(公告)日：2020-08-27
申请号：US16646370
申请日：2018-12-04
Applicant: LG CHEM, LTD.
Inventor： Suk Il YOUN , Byoungkuk SON , Junghun CHOI , Woongchul CHOI , Minchul JANG
IPC: H01M4/1395 , H01M4/66 , H01M4/36 , H01M10/0525 , H01M10/0565
Abstract: A lithium electrode and a lithium secondary battery including the same. By using an olefin-based ion conducting polymer as a protective layer-forming material of a lithium electrode having a protective layer formed on a lithium metal layer, the lithium electrode may be protected from moisture or open air during a lithium electrode preparation process, lithium dendrite formation and growth from the lithium electrode may be prevented, and performance of a battery using the lithium electrode may be enhanced.
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公开(公告)号：US20190341601A1
公开(公告)日：2019-11-07
申请号：US16474303
申请日：2018-06-21
Applicant: LG CHEM, LTD.
Inventor： Eunkyung PARK , Minchul JANG , Suk Il YOUN , Byoungkuk SON , Junghun CHOI , Bora JUNG
IPC: H01M4/131 , H01M10/0525 , H01M4/04 , H01M4/62 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/485 , H01M4/66 , H01M4/40
Abstract: A lithium secondary battery which is made of an anode-free battery and includes lithium metal formed on a negative electrode current collector by charging. The lithium secondary battery includes the lithium metal formed on the negative electrode current collector in a state of being shielded from the atmosphere, so that the generation of a surface oxide layer (native layer) formed on the negative electrode according to the prior art does not occur fundamentally, thereby preventing the deterioration of the efficiency and life characteristics of the battery.
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