公开(公告)号：US20170222267A1

公开(公告)日：2017-08-03

申请号：US15126782

申请日：2015-03-12

Applicant: BASF SE

Inventor： GABRIELE BAISCH ,  Thomas WEISS ,  Reinhold ÖHRLEIN

IPC: H01M10/0569 ,  H01M10/0525 ,  C08G65/334

CPC classification number: H01M10/0569 ,  C08G65/3344 ,  C08G65/3346 ,  C08G2650/42 ,  C08G2650/44 ,  H01M4/38 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0028

Abstract: The invention relates to glycerol acetal polyethers of general formula (I) or (II), wherein R1, R2, R3, R4, R5, and n have the meaning specified in the description. Said glycerol acetal polyethers are suitable as electrolyte solvents in a lithium cell, in particular a lithium-sulfur cell. The hydroxyl content of said glycerol acetal polyethers is preferably less than 0.2 wt %. In a method for producing said glycerol acetal polyethers, glycerol acetal polyether alcohols are reacted with a C1-C18 mono- or dialkyl sulfate or C1-C18 mono- or dialkyl sulfonate in the presence of an alkaline earth.