Ge, Aimin published the artcileUnraveling the Unstable Nature of Tetraglyme-Based Electrolytes toward Superoxide and the Inhibitory Effect of Lithium Ions by Using In Situ Vibrational Spectroscopies, Application In Synthesis of 143-24-8, the main research area is tetraglyme electrolyte superoxide lithium oxide battery.
The stability of solvents is critical for the efficiency and cyclability of rechargeable aprotic lithium-oxygen (Li-O2) batteries. Here, we report a combined spectroscopic study on the stability of tetraglyme (G4), which is one of the most commonly used solvents in Li-O2 batteries, against superoxide (O2-) during oxygen reduction reaction (ORR). Based on sum-frequency generation spectroscopy characterization, we found that ORR induces significantly irreversible structural changes in G4 mols. on the electrode surface in an O2-saturated Li+-free solution In the Li+-containing solution, however, reversibility for the structural change in G4 mols. is primarily improved. Furthermore, IR reflectance absorption spectroscopy and surface-enhanced Raman spectroscopy measurements confirmed that G4 is extremely unstable during ORR in the Li+-free G4 solution In addition, several decomposition products have been identified during ORR. On the other hand, the decomposition of G4 during ORR is significantly suppressed when Li+ is included in the solution These results indicate that O2- plays a crucial role in the cathodic decomposition of the G4 solvent during ORR. The decomposition mechanism and the inhibitory effect of Li+ are discussed based on spectroscopic observations.
Journal of Physical Chemistry C published new progress about Battery cathodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application In Synthesis of 143-24-8.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem