Study on High Temperature Film Formation of LiBOB Lithium Salt

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Li, Shiyou^1 ; Peng, Fengfeng^1 ; Geng, Tongtong^1

College of Petrochemical Technology, Lanzhou University of Technology, 730050, China^1

关键词: Carbon microbeads;    Film formations;    High temperature;    Lithium bis(oxalato)borate;    Lithium salts;    Non-aqueous electrolytes;    Solid electrolyte interphase;    Solid electrolyte interphase film;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/2/022024/pdf
DOI  :  10.1088/1755-1315/153/2/022024

来源: IOP

【 摘 要 】

Lithium bis(oxalato)borate (LiBOB) has attracted much attention as a lithium salt or an additive in non-aqueous electrolytes for lithium-ion battery. In this work, the formation of a solid electrolyte interphase (SEI) film of MCMB (mesophase carbon microbeads) with LiBOB- sulfolane (SL) / dimethyl sulfite (DMS) electrolyte is studied. The result shows that Li/MCMB cell with LiBOB-SL/DMS electrolyte at high temperature exhibits lower impedance than that at room temperature. The SEM images demonstrates that the LiBOB-SL/DMS electrolyte at high temperature shows more excellent film-forming characteristics. It suggests that LiBOB-SL/DMS electrolyte is a promising formation of the solid electrolyte interphase.