The author of ãEffects of LiBF4 concentration in carbonate-based electrolyte on the stability of high-voltage LiNi0.5Mn1.5O4 cathodeã?were Feng, Yaohua; Xu, Hui; Zhang, Yu; Li, Chunlei; Zhao, Dongni; Zhao, Qiuping; Mao, Liping; Zhang, Haiming; Li, Shiyou. And the article was published in Ionics in 2019. Recommanded Product: 872-36-6 The author mentioned the following in the article:
LiBF4 has attracted much attention due to its better thermal stability, lower sensitivity to environmental humidity, and lower charge transfer resistance provided by its solution, especially at high voltage. Herein, the effects of the concentration of LiBF4 salt on the stability and electrochem. properties of LiNi0.5Mn1.5O4 (LNMO) cathode material have been investigated by using the mixed solvents of LiBF4 salt, vinyl carbonate (EC), and di-Et carbonate (DEC) as electrolytes. The surface morphol. and structure of cycled LNMO electrode are studied by SEM (SEM), Raman spectroscopy, and Fourier transform IR spectroscopy (FTIR). The results show that the optimum concentration of LiBF4 salt is 1.4 M LiBF4-EC/DEC (1:5, by volume). Under optimum conditions, the LNMO cathode material has high electrochem. capacity and favorable rate performance. Meanwhile, the prepared electrolyte can easily form a thin and stable SEI film on the surface of LNMO electrode, which can effectively inhibit the continuous decomposition of the electrolyte. The experimental part of the paper was very detailed, including the reaction process of Vinylene carbonate(cas: 872-36-6Recommanded Product: 872-36-6)
Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Recommanded Product: 872-36-6
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics