-
公开(公告)号：US20210336274A1
公开(公告)日：2021-10-28
申请号：US16625602
申请日：2018-08-28
Applicant: LG CHEM, LTD.
Inventor： Bora JUNG , Eunkyung PARK , Minchul JANG , Byoungkuk SON , Changhun PARK , Doyeon KIM
IPC: H01M4/80 , H01M10/052 , H01M4/36 , H01M4/525 , H01M4/505 , H01M4/48 , H01M4/58 , H01M10/0562 , H01M4/62 , H01M4/38
Abstract: A lithium secondary battery including a negative electrode in which a negative electrode mixture included in the negative electrode is formed by charge and discharge of the battery. This negative electrode is formed by charge-induced formation of lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery forms lithium metal while being blocked from the atmosphere. Therefore, formation of a surface oxide layer (native oxide layer) on a negative electrode is blocked and a lithium dendrite growth suppressing effect is achieved by forming lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery has a superior battery efficiency and reduces declines in lifetime properties.
-
公开(公告)号：US20210273262A1
公开(公告)日：2021-09-02
申请号：US17265400
申请日：2019-10-30
Applicant: LG CHEM, LTD.
Inventor： Insung UHM , Yohan KWON , Eunkyung PARK , Jae Hyun LEE , Minchul JANG , Byoungkuk SON , Seongmin HA
IPC: H01M10/0567 , H01M10/052 , H01M10/0565 , H01M10/0568 , H01M10/44 , H01M4/04 , H01M4/139
Abstract: A lithium secondary battery including a positive electrode, a negative electrode comprising a negative electrode current collector, and an electrolyte interposed between the positive electrode and negative electrode. The lithium metal is formed on the negative electrode current collector by lithium ions migrating toward the negative electrode current collector after charge. The electrolyte comprises a sacrificial salt having an oxidation potential of 5 V or less with respect to lithium. The lithium secondary battery forms lithium metal while being blocked from the atmosphere, and thereby improves an existing problem caused by high reactivity of lithium metal. By including a sacrificial salt in an electrolyte, lithium consumption caused by an irreversible reaction of a negative electrode is reduced, which may prevent decline in the battery capacity and lifetime properties.
-
公开(公告)号：US20210273217A1
公开(公告)日：2021-09-02
申请号：US17257615
申请日：2020-03-05
Inventor： Eunkyung PARK , Minchul JANG , Taeseup SONG , Seho SUN , Dongsoo LEE , Byoungkuk SON
IPC: H01M4/1395 , H01M4/134 , H01M4/04 , C23F1/32 , H01M10/0525 , C23C8/48 , C23C8/02
Abstract: A negative electrode for a lithium secondary battery including a lithium metal layer and a protective layer including a three-dimensional structural body made of metal and lithium nitride on the lithium metal layer. The protective layer induces uniform ionic conductivity and electrical conductivity on the surface of the negative electrode. A method for manufacturing method a negative electrode for a lithium secondary battery including the steps of forming a metal hydroxide having a three-dimensional structure, forming a metal nitride having a three-dimensional structure by a nitridation reaction of the metal hydroxide of the three-dimensional structure; and transferring the metal nitride having the three-dimensional structure onto a lithium metal layer to form a protective layer. A lithium secondary battery including the negative electrode for a lithium secondary battery.
-
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.
-
25.发明申请公开(公告)号：US20190226109A1
公开(公告)日：2019-07-25
申请号：US16337804
申请日：2018-04-04
Applicant: LG CHEM, LTD.
Inventor： Changhun PARK , Minchul JANG , Da Young SUNG , Se Ho PARK , Doyeon KIM , Donghyeon KANG
IPC: C25D3/42 , H01M4/04 , H01M4/1395 , H01M4/66 , H01M4/70
Abstract: An electroplating solution for lithium metal, and a method for preparing a lithium metal electrode using the same, and in particular, while preparing a lithium metal electrode using electroplating, a lithium metal electrode having enhanced surface properties may be prepared by electroplating using a plating solution including a lithium nitrogen oxide and a metal nitrogen oxide, and, by using such a lithium metal electrode in a battery, lifetime properties of the battery may be enhanced.
-
Patent Agency Ranking
公开(公告)号：US20190097239A1
公开(公告)日：2019-03-28
申请号：US16202946
申请日：2018-11-28
Applicant: LG CHEM, LTD.
Inventor： Byoungkuk SON , Minchul JANG , Min Seo KIM , Da Young SUNG , Seong Ho LEE
IPC: H01M4/62 , H01M10/0568 , H01M10/052 , H01M4/38 , H01M4/04 , H01M4/13 , H01M4/40 , H01M4/136
Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.
-
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.
-
公开(公告)号：US20160233475A1
公开(公告)日：2016-08-11
申请号：US15029723
申请日：2014-09-29
Applicant: LG CHEM, LTD.
Inventor： Byoungkuk SON , Seong Ho LEE , Minchul JANG , Hyungsam CHOI , Joong Jin HAN , Min Seo KIM , Suhwan KIM , Seungpyo JEONG , Yu Mi KIM , Da Young SUNG , Youngjea KIM , Gi Su PARK
IPC: H01M2/16 , H01M4/136 , H01M4/134 , H01M10/0568 , H01M4/62 , H01M4/66 , H01M10/0569 , H01M10/0525 , H01M4/38
CPC classification number: H01M2/1686 , H01M2/145 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M4/0404 , H01M4/134 , H01M4/136 , H01M4/1397 , H01M4/38 , H01M4/382 , H01M4/5815 , H01M4/623 , H01M4/625 , H01M4/661 , H01M10/052 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/058 , H01M2004/027 , H01M2004/028 , H01M2220/20
Abstract: The present application relates to a separation membrane and a lithium-sulfur battery including the same, and the separation membrane according to the present application prevents elution of lithium polysulfide in a cathode and suppresses growth of a lithium dendrite generated in an anode, and thus has an effect that a life-span and safety of the battery are improved.
Abstract translation: 本申请涉及一种分离膜和包含该分离膜的锂 - 硫电池，根据本申请的分离膜防止了阴极中多硫化锂的洗脱，并抑制了在阳极中产生的锂枝晶的生长，因此具有 影响电池寿命和安全性的提高。
-
公开(公告)号：US20160164103A1
公开(公告)日：2016-06-09
申请号：US14908331
申请日：2014-07-08
Applicant: LG CHEM, LTD.
Inventor： Byoungkuk SON , Minchul JANG , Min Seo KIM , Da Young SUNG , Seong Ho LEE
IPC: H01M4/62 , H01M4/04 , H01M10/0568 , H01M4/40 , H01M10/052 , H01M4/38
CPC classification number: H01M4/628 , H01M4/0409 , H01M4/13 , H01M4/136 , H01M4/38 , H01M4/382 , H01M4/386 , H01M4/405 , H01M4/62 , H01M4/625 , H01M10/052 , H01M10/0568 , H01M2220/20 , H01M2220/30 , Y02T10/7011
Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.
Abstract translation: 本发明涉及一种锂硫电池用阴极及其制备方法。 更具体地，根据本申请的示例性实施方案的用于锂硫电池的阴极包括：包含硫 - 碳复合材料的阴极活性部分; 以及阴极涂层，其包含设置在阴极活性部分的表面的至少一部分上并包含亲水部分和疏水部分的两亲性聚合物。
-
30.发明申请CATHODE ACTIVE MATERIAL FOR LITHIUM-SULFUR BATTERY AND MANUFACTURING METHOD THEREFOR 有权用于锂硫电池的阴极活性材料及其制造方法公开(公告)号：US20150340696A1
公开(公告)日：2015-11-26
申请号：US14655944
申请日：2014-01-07
Applicant: LG CHEM, LTD.
Inventor： Byoungkuk SON , Minchul JANG , Yu Mi KIM , Hong Kyu PARK , Da Young SUNG , Seong Ho LEE
CPC classification number: H01M4/604 , H01M4/13 , H01M4/139 , H01M4/364 , H01M4/366 , H01M4/38 , H01M4/382 , H01M4/58 , H01M4/583 , H01M4/622 , H01M4/625 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2004/028
Abstract: The present invention relates to a cathode active material for a lithium-sulfur battery and a method of preparing the same, and more particularly, to a cathode active material for a lithium-sulfur battery comprising: an amphiphilic polymer comprising hydrophilicity parts and hydrophobicity parts; and a sulfur-carbon composite, and a method of preparing the same. When a lithium-sulfur battery is prepared using the cathode active material, there is an effect which may enhance the electric conductivity in an electrode, cycle characteristics and capacity.
Abstract translation: 本发明涉及一种锂 - 硫电池用正极活性物质及其制备方法，更具体地说，涉及一种锂硫电池用正极活性物质，其特征在于，包含：亲水性部分和疏水性部分的两亲性聚合物; 和硫 - 碳复合材料及其制备方法。 当使用正极活性物质制备锂硫电池时，存在可以提高电极的导电性，循环特性和容量的效果。
-
-
-
-
-
-
-
-
-
Search Results
41
records
(took 0.028 seconds)
