公开(公告)号：US20180331391A1

公开(公告)日：2018-11-15

申请号：US15776006

申请日：2017-01-13

Applicant: LG CHEM, LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Ho LEE ,  Haeshin LEE ,  Sun Jin KIM ,  Doo Kyung YANG ,  Ki Young KWON ,  In Tae PARK

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  C08G61/12

Abstract: The present invention relates to an electrolyte containing a polydopamine and a lithium-sulfur battery including the same and, more particularly, to a technique in which polydopamine contained in an electrolyte adsorbs a lithium polysulfide eluted from a positive electrode of a lithium-sulfur battery. When using an electrolyte, according to the present invention, to which polydopamine particles are added, the polydopamine particles dispersed in the electrolyte act to adsorb lithium polysulfide eluted from a positive electrode during the charging and discharging, and thus can suppress the diffusion thereof, i.e., suppress a shuttle reaction, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

公开(公告)号：US20180212277A1

公开(公告)日：2018-07-26

申请号：US15743778

申请日：2016-11-30

Applicant: LG CHEM, LTD.

Inventor： In Tae PARK ,  Doo Kyung YANG

IPC: H01M10/0585 ,  H01M10/052 ,  H01M4/38 ,  H01M4/66 ,  H01M4/40

CPC classification number: H01M10/0585 ,  H01M4/134 ,  H01M4/38 ,  H01M4/382 ,  H01M4/405 ,  H01M4/661 ,  H01M4/662 ,  H01M4/663 ,  H01M4/667 ,  H01M4/70 ,  H01M10/04 ,  H01M10/052 ,  H01M10/058

Abstract: The present invention relates to an electrode assembly for a lithium secondary battery, a lithium secondary battery and a battery module comprising the same, and in particular, to an electrode assembly for a lithium secondary battery capable of, by changing a form of a lithium negative electrode current collector and thereby minimizing an interface of the negative electrode current collector exposed to a electrolyte, fundamentally blocking a corrosion reaction focusing on the negative electrode current collector caused by the liquid electrolyte in the art, and a lithium secondary battery and a battery module including the same.

公开(公告)号：US20180138503A1

公开(公告)日：2018-05-17

申请号：US15578800

申请日：2016-09-09

Applicant: LG CHEM, LTD.

Inventor： Yun Kyoung KIM ,  Doo Kyung YANG ,  Ki Young KWON ,  In Tae PARK

IPC: H01M4/36 ,  H01M4/587 ,  H01M10/052 ,  H01M4/38

CPC classification number: H01M4/364 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/362 ,  H01M4/38 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: The present invention relates to a positive electrode for a lithium-sulfur battery, a manufacturing method therefor and a lithium-sulfur battery containing the same. The positive electrode for a lithium-sulfur battery comprises: a positive electrode active material comprising a sulfur-carbon composite; and a sulfur-carbon compound.The lithium-sulfur battery of the present invention can overcome low battery capacity caused by the decrease in the density of sulfur, and thus capacity characteristics and battery lifetime characteristics are improved.

公开(公告)号：US20190051940A1

公开(公告)日：2019-02-14

申请号：US15571382

申请日：2016-12-01

Applicant: LG CHEM, LTD.

Inventor： In Tae PARK ,  Doo Kyung YANG ,  Yun Kyoung KIM

IPC: H01M10/0568 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/052 ,  H01M4/38 ,  H01M4/62 ,  H01M4/36

Abstract: The present disclosure relates to an electrolyte for a lithium secondary battery, and in particular, to a liquid electrolyte capable of stabilizing lithium metal and suppressing lithium dendrite growth, and a lithium secondary battery including the same. The lithium secondary battery provided with the electrolyte according to the present disclosure has an excellent cycle-dependent capacity retention rate, and accordingly, is effective in improving a battery lifespan property.

公开(公告)号：US20180316068A1

公开(公告)日：2018-11-01

申请号：US15755984

申请日：2017-01-12

Applicant: LG CHEM, LTD.

Inventor： In Tae PARK ,  Sung Won HONG ,  Charles Kiseok SONG ,  Chang Hoon LEE ,  Doo Kyung YANG

IPC: H01M10/52 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0567

Abstract: The present invention relates to an electrolyte solution for a lithium-sulfur battery and a lithium-sulfur battery including the same.The electrolyte solution for a lithium-sulfur battery according to the present invention exhibits excellent stability, and may improve a swelling phenomenon by suppressing gas generation during lithium-sulfur battery operation.

公开(公告)号：US20180248227A1

公开(公告)日：2018-08-30

申请号：US15758115

申请日：2017-01-18

Applicant: LG CHEM, LTD.

Inventor： In Tae PARK ,  Sung Won HONG ,  Charles Kiseok SONG ,  You Hwa OHK ,  Doo Kyung YANG ,  Chang Hoon LEE

IPC: H01M10/0569 ,  H01M10/054 ,  H01M10/0568

Abstract: The present invention relates to an electrolyte solution for a lithium-sulfur battery and a lithium-sulfur battery including the same.The electrolyte solution for a lithium-sulfur battery according to the present invention exhibits excellent stability, and may improve a swelling phenomenon by suppressing gas generation during lithium-sulfur battery operation.