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：US20180198156A1

公开(公告)日：2018-07-12

申请号：US15742426

申请日：2017-01-16

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

IPC: H01M10/052 ,  H01M2/14 ,  H01M2/16 ,  H01M4/40 ,  H01M10/04 ,  H01M4/136

Abstract: The present invention relates to a separator for a lithium-sulfur battery having a composite coating layer including polydopamine, and a method for preparing the same, and in particular, to a lithium-sulfur battery suppressing lithium polysulfide elution by using a composite coating layer including polydopamine and a conductive material on one surface of a separator. In the lithium-sulfur battery according to the present invention, a porous structure of polydopamine adsorbs lithium polysulfide eluted from a positive electrode preventing elution and diffusion, and by providing additional electric conductivity, a reaction site of a positive electrode active material is provided, and therefore, battery capacity and life time properties are enhanced.

公开(公告)号：US20180233648A1

公开(公告)日：2018-08-16

申请号：US15772022

申请日：2016-10-26

Applicant: Korea Advanced Institute of Science and Technology ,  TEGway Co., Ltd.

Inventor： Byung Jin CHO ,  Sun Jin KIM ,  Ji Seon SHIN ,  Sehwan YIM ,  Hyeong Do CHOI ,  Yongjun KIM ,  Choong Sun KIM ,  Ju Hyung WE

IPC: H01L35/32 ,  H01L35/34

CPC classification number: H01L35/32 ,  H01L35/08 ,  H01L35/16 ,  H01L35/34

Abstract: The present invention relates to a flexible thermoelectric element and a production method therefor, the flexible thermoelectric element comprising: a thermoelectric material column array including one or more N-type thermoelectric material and one or more P-type thermoelectric material which are spaced apart from each other; an electrode configured to electrically connect the thermoelectric materials of the thermoelectric material column array; and a foam configured to fill in at least a void of the thermoelectric material column array.