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公开(公告)号:US20210104732A1
公开(公告)日:2021-04-08
申请号:US16971180
申请日:2019-07-16
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Doo Kyung YANG , Jeehyun AHN
IPC: H01M4/1395 , H01M10/0525 , H01M10/058 , H01M10/44 , H01M4/38 , H01M4/04
Abstract: A method for pre-treating lithium metal for a lithium secondary battery including stripping a surface oxide film formed on a surface of the lithium metal by discharging the battery, and a plating lithium metal on the surface of the lithium metal, from which the surface oxide film has been stripped, by charging the battery.
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公开(公告)号:US20210408526A1
公开(公告)日:2021-12-30
申请号:US17285417
申请日:2020-05-28
Applicant: LG CHEM, LTD.
Inventor: Myeongjun SONG , Myeongseong KIM , Minsu KIM , Intae PARK
IPC: H01M4/36 , H01M4/133 , H01M4/58 , H01M10/0525 , H01M10/0569 , H01M50/451 , H01M50/431 , H01M50/417
Abstract: Disclosed is a lithium secondary battery, and in particular, to a lithium secondary battery capable of obtaining higher energy density and longer lifetime compared to existing lithium secondary batteries by specifying conditions of a positive electrode and an electrolyte liquid and additionally surface modifying a carbon material through heat treatment or including a separator including a molybdenum disulfide coating layer.
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3.
公开(公告)号:US20190088980A1
公开(公告)日:2019-03-21
申请号:US16082400
申请日:2017-03-10
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Sungwon HONG , Charles Kiseok SONG , Youhwa OHK , Doo Kyung YANG , Changhoon LEE
IPC: H01M10/052 , H01M10/0568 , H01M10/0569 , H01M10/0567
Abstract: The present invention relates to a ternary liquid electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including the same.The liquid electrolyte for a lithium-sulfur battery according to the present invention exhibits an excellent sulfur utilization rate when used in a lithium-sulfur battery, and exhibits excellent stability. Accordingly, the liquid electrolyte for a lithium-sulfur battery according to the present invention is capable of enhancing a life time property while securing a capacity property of a lithium-sulfur battery.
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公开(公告)号:US20190198913A1
公开(公告)日:2019-06-27
申请号:US16328998
申请日:2017-09-15
Applicant: LG CHEM, LTD.
Inventor: Dongwook KOH , Doo Kyung YANG , Intae PARK
IPC: H01M10/052 , H01M10/058 , H01M4/62
CPC classification number: H01M10/052 , H01M2/16 , H01M4/626 , H01M10/058 , H01M10/42 , Y02E60/122 , Y02T10/7011
Abstract: A lithium-sulfur battery in which a passivation film having a semi-interpenetrating polymer network (semi-IPN) structure is formed on an electrode to improve lifespan characteristics of high-loading lithium-sulfur batteries.
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公开(公告)号:US20170301962A1
公开(公告)日:2017-10-19
申请号:US15509644
申请日:2015-09-10
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Changhun PARK , Seongeun PARK , Yoonsoo JUNG
IPC: H01M10/42 , H01M4/38 , H01M4/134 , H01M10/0569
CPC classification number: H01M10/4235 , H01M4/13 , H01M4/134 , H01M4/38 , H01M4/382 , H01M4/58 , H01M10/052 , H01M10/0569 , H01M2220/20 , H01M2300/004 , Y02E60/122 , Y02T10/7011
Abstract: The present specification relates to a lithium-sulfur battery including an anode, a cathode, and an electrolyte provided between the anode and the cathode, and a battery module including the same.
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公开(公告)号:US20170104209A1
公开(公告)日:2017-04-13
申请号:US15315818
申请日:2015-06-15
Applicant: LG CHEM, LTD.
Inventor: Byoungkuk SON , Minchul JANG , Kiyoung KWON , Seong Ho LEE , Intae PARK , Changhun PARK , Junghun CHOI
IPC: H01M4/133 , H01M10/0568 , H01M10/0569 , H01M10/0525 , H01M4/38
CPC classification number: H01M4/133 , H01M4/382 , H01M4/485 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/056 , H01M10/0568 , H01M10/0569 , H01M2300/0025 , Y02E60/122 , Y02T10/7011
Abstract: The present application relates to a lithium electrode and a lithium secondary battery including the same.
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公开(公告)号:US20210328209A1
公开(公告)日:2021-10-21
申请号:US17265346
申请日:2019-11-18
Applicant: LG CHEM, LTD.
Inventor: Changhoon LEE , Doo Kyung YANG , Intae PARK
IPC: H01M4/36 , H01M10/056 , H01M4/133 , H01M4/134 , H01M4/38 , H01M10/0525
Abstract: A lithium-sulfur secondary battery is disclosed, and in particular, a lithium-sulfur secondary battery in which a positive electrode includes a sulfur-carbon composite including a microporous carbon material and sulfur, or a conductive additive including a carbon material having high specific surface area. By specifying conditions of the positive electrode and an electrolyte liquid, energy density may be enhanced compared to existing lithium-sulfur secondary batteries.
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8.
公开(公告)号:US20210184274A1
公开(公告)日:2021-06-17
申请号:US16636538
申请日:2018-08-10
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Doo Kyung YANG
Abstract: A method for improving a lifetime property and a charging rate of a lithium-sulfur secondary battery capable of both improving a lifetime property and a charging rate of the secondary battery by inducing a homogeneous reaction of the lithium-sulfur secondary battery by applying a charging rate differently for each section in a charging process of the lithium-sulfur secondary battery.
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公开(公告)号:US20210104745A1
公开(公告)日:2021-04-08
申请号:US16971177
申请日:2019-10-24
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Doo Kyung YANG , Youngcheol CHOI , Soohyun KIM , Changhoon LEE
IPC: H01M4/58 , H01M4/136 , H01M10/0569 , H01M10/052
Abstract: A lithium-sulfur secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte solution are provided. The positive electrode has an SC factor value of 0.45 or more. The electrolyte solution includes a solvent and a lithium salt, and the solvent includes a first solvent having a DV2 factor value of 1.7 or less, and a second solvent which is a fluorinated ether-based solvent.
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公开(公告)号:US20190097270A1
公开(公告)日:2019-03-28
申请号:US16082484
申请日:2017-02-14
Applicant: LG CHEM, LTD.
Inventor: Intae PARK , Sungwon HONG , Charles Kiseok SONG , Youhwa OHK , Doo Kyung YANG , Changhoon LEE
IPC: H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M10/052
Abstract: The present invention relates to a ternary liquid electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including the same.The liquid electrolyte for a lithium-sulfur battery according to the present invention exhibits an excellent sulfur utilization rate when used in a lithium-sulfur battery, and exhibits excellent stability. Accordingly, the liquid electrolyte for a lithium-sulfur battery according to the present invention is capable of enhancing a life time property while securing a capacity property of a lithium-sulfur battery.
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