He, Mengxue; Li, Xia; Holmes, Nathaniel Graham; Li, Ruying; Wang, Jiajun; Yin, Geping; Zuo, Pengjian; Sun, Xueliang published the artcile< Flame-Retardant and Polysulfide-Suppressed Ether-Based Electrolytes for High-Temperature Li-S Batteries>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is flame retardant ether electrolytes lithium sulfur battery; Li−S batteries; ether-based electrolyte; high temperature; inert diluter; nonflammable.
Lithium-sulfur (Li-S) batteries are drawing huge attention as attractive chem. power sources. However, traditional ether-based solvents (DME/DOL) suffer from safety issues at high temperatures and serious parasitic reactions occur between the Li metal anodes and soluble lithium polysulfides (LiPSs). Herein, we propose a polysulfide-suppressed and flame-retardant electrolyte operated at high temperatures by introducing an inert diluent 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl (TTE) into the high-concentration electrolyte (HCE). Li dendrites are also efficiently suppressed by the formed LiF-rich protective layer. Furthermore, the shuttle effect is mitigated by the decreased solubility of LiPSs. At 60°C, Li-S batteries using this nonflammable ether-based electrolyte exhibit a high capacity of 666 mAh g-1 over 100 cycles at a current rate of 0.2C, showing the greatly improved high-temperature performance compared to batteries with traditional ether-based electrolytes. The improved electrochem. performance across a range of temperatures and the enhanced safety suggest that the electrolyte has a great practical prospect for safe Li-S batteries.
ACS Applied Materials & Interfaces published new progress about Batteries. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics