Tetraglyme (Tetraethylene Glycol Dimethyl Ether, G4, 99.5%) Liquid as Battery Electrolyte Solvent, 100 g/bottle, CBESG4
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Tetraglyme (Tetraethylene Glycol Dimethyl Ether, G4) is a linear polyether solvent belonging to the class of glymes (CH3O(CH2CH2O)nCH3, where n=4 for Tetraglyme). Trtraglyme is primarily utilized in advanced battery chemistries due to its strong ability to chelate (complex) with alkali metal ions and form a stable interphase on highly reactive metal anodes. Tetraglyme's linear ether structure allows it to chelate (or complex) the alkali metal cation (Li+, Na+) strongly via its multiple oxygen atoms. This strong coordination helps to dissolve high concentrations of lithium salts (LiTFSI, LiFSI) effectively, and the specific solvation structure it creates is crucial for dendrite suppression in LMBs.
| Part Number |
CBESG4 (C-BES-G4) |
| CAS |
143-24-8 |
| Chemical Formula |
CH3O(CH2CH2O)4CH3  |
| Appearance |
Colorless Liquid |
| Purity |
>99.5% (Battery Grade) |
| Molecular Weight | 222.28 g/mol |
| Boling Point | ~275 °C |
| Package Size | 100 g/bottle |
Notes: Please store the G4 liquid in the glovebox and process it with molecular sieve before use.
References:
- D. Yang, et al. Solvated Structure of Hybrid Tetraglyme-Aqueous Electrolyte Dissolving High-Concentration LiTFSI-LiFSI for Dual-Ion Battery, ChemSusChem 2023, 16, e202201805.
- F. Tuerxun, et al. High concentration magnesium borohydride/tetraglyme electrolyte for rechargeable magnesium batteries, J. Power Sources, 2015, 276, 255-261.