1-(Trimethylsiloxy)-5-methoxy-3-oxapentane

Introduction

1. Silicon based electrolytes with polyethylene glycol oligomers improve thermal and electrochemical stability of lithium-ion batteries
2. Increases battery long-term stability
3. Are less flammable than conventional organic carbonate-based solvents and maintain the safe operation of batteries
4. Improves conductivity and kinetics of the lithium salts;

1. Viscosity 0.9 cP at 25°C; Conductivity: 1.2 x 10–3 S cm–1 at 25°C (1.0 M LiTFSI); Boiling point 190- 191°C; Glass transition temperature -129°C.
2. Soluble electrolytic lithium salt LiTFSI; Less soluble LiBOB.
3. Silylated electrolytes show much better electrochemical stability than its carbon and germanium analogues.
4. Compares well with other trimethylsilylated polyethyleneoxide oligomers, with longer chain lengths (see also ANL-1NM3; product # 14-1930). Ethylene oxide units in certain electrolytic blends are advantageous improving the conductivity and kinetics of the lithium salts.