公开(公告)号：US11469475B2

公开(公告)日：2022-10-11

申请号：US16835464

申请日：2020-03-31

Applicant: Korea Electronics Technology Institute

Inventor： Sanggil Woo ,  Jisang Yu ,  Goojin Jeong ,  Jenam Lee

IPC: H01M50/46 ,  H01M4/134 ,  H01M4/36 ,  H01M4/62 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

Abstract: The present disclosure provides a separator, a lithium metal negative electrode, and a lithium metal secondary battery which include a solid superacid coating layer. The solid superacid coating layer suppresses a growth of lithium dendrites in a lithium metal secondary battery employing lithium metal as a negative electrode by improving a mobility and a reaction uniformity of lithium at an interface of the lithium metal negative electrode and an electrolyte solution. In the lithium metal secondary battery, the solid superacid coating layer comprising solid superacid material having a porous structure is formed on at least one of the lithium metal negative electrode and the separator.

公开(公告)号：US10270083B2

公开(公告)日：2019-04-23

申请号：US15368476

申请日：2016-12-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Goojin Jeong ,  Youngjun Kim ,  Hansu Kim ,  Juhye Song

IPC: H01M4/04 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M4/134 ,  H01M10/0525

Abstract: The present invention relates to a negative electrode for a lithium secondary battery that can ensure a high energy density, a long-life characteristic, and stability by forming a film on a negative electrode for a lithium secondary battery and thus suppressing dendrites during electrodeposition, a method of manufacturing the same, and a lithium secondary battery using the same. The method of manufacturing the negative electrode for a lithium secondary battery according to the present invention includes preparing a sulfur dioxide-based sodium molten salt and forming a protective layer on the surface of a current collector by immersing the current collector in the sulfur dioxide-based sodium molten salt.