Mukra, Tzach published the artcileDisiloxane with nitrile end groups as Co-solvent for electrolytes in lithium-sulfur batteries – A feasible approach to replace LiNO3, Related Products of ethers-buliding-blocks, the main research area is disiloxane nitrile solvent electrolyte lithium sulfur battery nitrate solvent.
The Li-S battery is a leading candidate for a new-generation Li-ion battery, because of its high theor. capacity and abundance of S. Yet, the flammability of either the organic-carbonate or ether-based electrolytes used in such battery systems is of concern. Also, the oxidation of Li2S gives polysulfides (Li2S3-8), which dissolve in the electrolyte and initiate a shuttle mechanism, which results in low Coulombic efficiency and growth of a thick SEI on the anode. Therefore, various electrolyte additives, like LiNO3, are added to the electrolyte. Unfortunately, the nitrate additive is gradually consumed and the shuttle effect resumes. Here the authors present a LiNO3-free electrolyte consisting of nitrile-functionalized disiloxane (TmdSx-CN) with dissolved LiTFSI as a candidate electrolyte for Li-S batteries. The authors have examined the effect of TmdSx-CN as a co-solvent along with 1,3-dioxolane (DOL) on the performance of Li/S cells. LiNO3-free TmdSx-CN:DOL electrolyte mitigates the polysulfide shuttle. The cell containing this electrolyte yields an average capacity of 700 mAh g-1 and 96% Coulombic efficiency for >100 cycles. Also, 87.5% energy efficiency, which is similar to the LiNO3-based control cell. The authors expect that the authors’ preliminary results will encourage the further use of siloxane-based electrolytes in metallic-Li battery systems, and specifically, in Li-S batteries.
Electrochimica Acta published new progress about Battery electrolytes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Related Products of ethers-buliding-blocks.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem