Title:
ホウ酸塩系リチウム塩を含有する電解質を含むリチウム－硫黄二次電池
Document Type and Number:
Japanese Patent JP7432007
Kind Code:
B2
Abstract:
A lithium-sulfur secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte. The electrolyte contains a borate-based lithium salt, and the borate-based lithium salt is lithium difluoro(oxalato)borate, lithium bis(oxalate)borate, or a combination thereof. The borate-based lithium salt is contained in the electrolyte in an amount exceeding 0 ppm and less than 1,000 ppm based on the total weight of the electrolyte. The cycle performance of the lithium-sulfur secondary battery is improved because the lithium-sulfur secondary battery contains specific borate-based lithium salt in the electrolyte.
Inventors:
Inte Park
Young-hwi Kim
Jang Hoon Park
Chang Hung Lee
Young-hwi Kim
Jang Hoon Park
Chang Hung Lee
Application Number:
JP2022562563A
Publication Date:
February 15, 2024
Filing Date:
October 21, 2021
Export Citation:
Assignee:
LG Energy Solution Limited
International Classes:
H01M10/0567; H01M4/136; H01M4/36; H01M10/052; H01M10/0568; H01M10/0569
Foreign References:
| WO2020053604A1 | ||||
| WO2019059698A1 |
Attorney, Agent or Firm:
Masato Iida
Shinya Mihiro
Shinya Mihiro