公开(公告)号：US20230318032A1

公开(公告)日：2023-10-05

申请号：US18111640

申请日：2023-02-20

Applicant: POSTECH Research and Business Development Foundation ,  GEV Co.,Ltd.

Inventor： Soojin PARK ,  Hye Bin SON ,  Seoha NAM ,  TaeSung HA ,  YoungHwan LEE ,  Ji Hyun PARK

IPC: H01M10/0565 ,  H01M50/46

CPC classification number: H01M10/0565 ,  H01M50/46 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: Provided is a gel-type electrolyte composition for a secondary battery and a secondary battery including the same, wherein the gel-type electrolyte composition includes a lithium salt, an organic solvent, a C1 to C5 alkoxy silane compound, and a multi-functional symmetrical compound having a (meth)acrylate group.

公开(公告)号：US20210328214A1

公开(公告)日：2021-10-21

申请号：US17285316

申请日：2020-03-06

Applicant: LG CHEM, LTD. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Jangbae KIM ,  Soojin PARK ,  Jaegeon RYU ,  Jonghyun CHAE ,  Jihye YANG

IPC: H01M4/38 ,  H01M4/134 ,  C01B33/023

Abstract: A sulfur-doped silicon negative electrode material, a preparation method for a sulfur-doped silicon negative electrode material, a negative electrode for a lithium secondary battery comprising the sulfur-doped silicon negative electrode material, and a lithium secondary battery comprising the negative electrode, wherein the sulfur-doped silicon negative electrode material has an internal pore channel having an average width of 500 nm to 3 μm and an average external diameter of 1 μm to 5 μm.