Okumura, Takefumi; Kawaji, Jun published the artcile< Research and development of thermally durable electrolyte for lithium ion battery>, Product Details of C19H34O2, the main research area is thermally durable electrolyte lithium ion battery.
For ensuring safety of lithium ion batteries (LIBs), we have extensively investigated the quasi-solid electrolyte where lithium ion conducive liquid is quasi-solidified at silica surfaces as thermally durable electrolyte, and applied it to high capacity and high energy d. LIB. For the liquid phase, a solvate ionic liquid, which is an equimolar complex of lithium bis(trifluoromethanesulfonyl)amide (LiTFSA) and tetraethylene glycol di-Me ether (G4), Li(G4)TFSA, was used. For enhancing discharge capability at a higher rate, Li(G4)TFSA was diluted by low viscos solvent such as propylene carbonate (PC). The developed electrolyte possessed a favorable volatilization temperature higher than 373 K. A 100-Wh-class laminated LIB with energy d. of 363 WhL-1 was fabricated by employing the electrolyte to graphite-LiNixCoyMnzO2 chem., and it generated neither fire nor smoke in a nail-penetration test. The result suggest that the developed LIB has high safety compared to a LIB comprised of a conventional organic liquid electrolyte. In addition, to enhance the cycle life of the LIB, the formation and growth mechanism of a solid-electrolyte interphase on a graphite-based neg. electrode was investigated. NMR and hard XPS revealed that the decompositions of LiTFSA, PC, and G4 contributed to the SEI formation at the initial charge, and that continuous decompositions of G4 and PC were a major reason for the SEI growth during charge-discharge cycles. Based on these anal., we have substituted a highly concentrated sulfolane based liquid which exhibits a high Li ion conductivity with less amount of the low viscos solvent, for the G4 based liquid The modification effectively improved the electrochem. durability of the electrolyte, leading to a higher capacity retention after charge-discharge cycle test.
Electrochemistry (Tokyo, Japan) published new progress about Battery electrolytes (Thermally Durable). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics