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公开(公告)号:US20190229342A1
公开(公告)日:2019-07-25
申请号:US16368149
申请日:2019-03-28
Inventor: Byoungkuk SON , Jang Wook CHOI , Byung Gon KIM , Minchul JANG , Eunkyung PARK , Junghun CHOI , Donghyeon KANG
Abstract: An electrode and a lithium secondary battery including the same. By preparing an electrode including an electrode active layer formed using a structure capable of supporting an electrode active material, safety and charge and discharge properties of a battery are improved due to morphological characteristics of the electrode active material being supported inside the structure.
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公开(公告)号:US20190173095A1
公开(公告)日:2019-06-06
申请号:US16268925
申请日:2019-02-06
Inventor: Eunkyung PARK , Jang Wook CHOI , Byung Gon KIM , Minchul JANG , Byoungkuk SON , Junghun CHOI , Donghyeon KANG
Abstract: A structure, and more specifically a tube-shaped structure having an inner surface and two ends, wherein one or both ends are open and the inner surface is exposed through said one or both open ends, and a metal provide on the inner surface. Also, an electrode active material, such as lithium metal, on the metal included on the inner surface of the tube.
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公开(公告)号:US20170117551A1
公开(公告)日:2017-04-27
申请号:US15318301
申请日:2015-06-15
Applicant: LG CHEM, LTD.
Inventor: Junghun CHOI , Minchul JANG , Kiyoung KWON , Byoungkuk SON , Seong Ho LEE , Intae PARK , Changhun PARK
CPC classification number: H01M4/628 , H01M4/133 , H01M4/134 , H01M4/382 , H01M4/405 , H01M4/587 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M2004/027
Abstract: The present application relates to a lithium electrode and a lithium battery including the same.
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公开(公告)号:US20200381713A1
公开(公告)日:2020-12-03
申请号:US16303045
申请日:2018-05-30
Applicant: LG CHEM, LTD.
Inventor: Chanyeup CHUNG , Minchul JANG , Kyoung Hoon KIM , Youngcheol CHOI , Byoungkuk SON , Junghun CHOI
IPC: H01M4/36 , H01M4/66 , H01M4/134 , H01M10/0525
Abstract: A negative electrode including an electrode protective material and a lithium secondary battery including the negative electrode, wherein the negative electrode containing the protective material can inhibit the growth of lithium dendrite on the surface of the electrode, effectively transfer lithium ions to the lithium metal electrode and has an excellent ion conductivity, and thus the protective layer itself including the protective material does not act as a resistive layer, overvoltage is not applied during charging and discharging, thereby preventing degradation of the performance of the battery and ensuring stability when driving the battery.
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公开(公告)号:US20190140318A1
公开(公告)日:2019-05-09
申请号:US16093342
申请日:2017-09-28
Applicant: LG CHEM, LTD.
Inventor: Changhun PARK , Minchul JANG , Byoungkuk SON , Eunkyung PARK , Junghun CHOI
IPC: H01M10/0565 , H01M10/052 , H01M10/0569 , H01M4/40 , H01M4/38
Abstract: The present invention relates to a lithium secondary battery, and in particular, to a lithium secondary battery including a positive electrode, a negative electrode, and a separator and an electrolyte interposed between the positive electrode and the negative electrode, wherein a gel polymer electrolyte is included between the negative electrode and the separator, and a liquid electrolyte is included between the positive electrode and the separator.The lithium secondary battery according to the present invention uses a different electrolyte in each of a positive electrode and a negative electrode improving stability and performance of the electrodes, and as a result, performance and a life time of the lithium secondary battery may be enhanced.
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公开(公告)号:US20180323430A1
公开(公告)日:2018-11-08
申请号:US15740614
申请日:2017-06-12
Applicant: LG CHEM, LTD.
Inventor: Byoungkuk SON , Minchul JANG , Junghun CHOI , Da Young SUNG , Se Ho PARK
IPC: H01M4/525 , H01M10/0525 , H01M4/38 , H01M4/04 , H01M10/058
CPC classification number: H01M4/525 , H01M4/0445 , H01M4/382 , H01M4/52 , H01M10/0525 , H01M10/058 , H01M10/42
Abstract: The present invention relates to a lithium secondary battery, more particularly, to a lithium secondary battery in which a low-cost positive electrode active material is applied and a negative electrode active material of lithium metal is formed on the positive electrode side, and to a preparation method thereof. The lithium secondary battery according to the present invention can be produced at a low unit cost of production because it employs a complex combined from relatively inexpensive Co, CoO, Co3O4 and Li2O, instead of LiCoO2 which is a common positive electrode active material, and the lithium secondary battery is also easy to mass produce because of its simple manufacturing process since LiCoO2 is synthesized through an electrochemical reaction due to operating of the battery without a separate heat treatment process.
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公开(公告)号:US20210288349A1
公开(公告)日:2021-09-16
申请号:US16336756
申请日:2018-02-14
Applicant: LG CHEM, LTD.
Inventor: Byoungkuk SON , Minchul JANG , Eunkyung PARK , Junghun CHOI , Changhun PARK
IPC: H01M10/0565 , H01M10/052 , H01M10/0567 , H01M10/0569 , H01M4/38 , H01M4/40
Abstract: A lithium secondary battery, in which, by using different electrolytes in a positive electrode and a negative electrode, and using a gel polymer electrolyte, in which a small amount of an electrolyte liquid is impregnated into a polymer matrix, between the negative electrode and the separator, the stability and performance of the electrode may be improved, and therefore, the performance and lifetime of the lithium secondary battery may be enhanced.
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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:US20190229380A1
公开(公告)日:2019-07-25
申请号:US16329076
申请日:2017-11-08
Applicant: LG CHEM, LTD.
Inventor: Byoungkuk SON , Minchul JANG , Eunkyung PARK , Junghun CHOI
IPC: H01M10/42 , H01M4/133 , H01M4/134 , H01M4/62 , H01M4/131 , H01M4/36 , H01M10/0525 , H01M10/0569
Abstract: An electrode and a lithium secondary battery comprising the same, in particularly an electrode comprising an electrode layer, a pre-lithiation prevention layer formed on the electrode layer, and a lithium layer formed on the pre-lithiation prevention layer, which is capable of greatly improving the problem of the reduction of irreversible capacity of a negative electrode while preventing fire caused by a lithiation reaction due to contact between lithium and silicon before assembling a cell, and a lithium secondary battery including the same.
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公开(公告)号:US20170214053A1
公开(公告)日:2017-07-27
申请号:US15328657
申请日:2015-09-02
Applicant: LG CHEM, LTD.
Inventor: Taek Gyoung KIM , Minchul JANG , Doo Kyung YANG , Byoungkuk SON , Changhun PARK , Junghun CHOI , Myeonghun SONG
IPC: H01M4/62 , H01M4/134 , H01M4/04 , H01M4/1395 , H01M10/0525 , H01M4/131 , H01M4/1391
CPC classification number: H01M4/628 , H01M4/0402 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M10/0525 , Y02E60/128
Abstract: The present specification relates to a lithium electrode, a lithium secondary battery including the same, a battery module including the lithium secondary battery, and a method for preparing a lithium electrode.
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