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7746964 
Journal Article 
Binary molten salt electrolytes based on LiClO4 and 2-oxazolidinone 
Chen Ren-Jie; Wu Feng; Li Li; Qiu Xin-Ping; Chen Shi 
2007 
Yes 
Acta Physico - Chimica Sinica
ISSN: 1000-6818 
PEKING UNIV PRESS 
BEIJING 
23 
4 
554-558 
Chinese 
WOS:000245883400020 
Novel binary molten salt electrolytes based on LiClO4 and 2-oxazolidinone (OZO) were prepared. The electrolytes appeared as liquid at room temperature though they were composed of two solids. DSC analysis showed that the LiClO4-OZO electrolyte was liquid with a eutectic temperature about -50 °C. FTIR spectroscopy indicated that OZO could coordinate with Li+ cation in the LiClO4-OZO system through Li-O bonding. A big coordinate cation was formed and the coulombic force was weakened. Meanwhile, Li-O coordination could also lead to the breakage of hydrogen bonding between OZO molecules, resulting in the decrease of the eutectic temperature of the system compared with pure salt. Some the molten salt samples existed as liquid state at room temperature. The electrochemical properties were evaluated by ac impedance spectroscopy and cyclic voltammertry, respectively. The conductivity of LiClO4-OZO electrolyte at molar ratio of 1:4.5 was 0.66×10-3 S· cm-1 at 25 °C and 7.33×10-3 S· cm-1 at 80 °C, and the electrochemical window was about 3.5 V. © Editorial office of Acta Physico-Chimica Sinica. 
molten salt electrolyte; thermal property; FTIR spectroscopy; ionic conductivity; 2-oxazolidinone; lithium perchlorate