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7749924 
Journal Article 
Syntheses and application of all-lithium salts of heteropolyacid as electrolyte of lithium-ion battery 
Chen, YG; Wang, CG; Zhang, XY; Xie, DM; Wang, RS 
2004 
Yes 
Chemical Research in Chinese Universities
ISSN: 1005-9040 
HIGHER EDUCATION PRESS 
BEIJING 
20 
1 
77-80 
English 
WOS:000188933700019 
The all-lithium salts of heteropoly acid LixXM12O40 (HPA-Li) (X = P, Si; M = Mo, W) were obtained via ion exchange and characterized by means of IR and UV spectroscopies, TG and elemental analyses. The conductivity of the electrolytic solution consisting of Li3PW12O40 and PC/DME mixing solvent (l/2.5, volume ratio) is up to 7.2 × 10-2 S/cm, being higher than that of LiClO4 as the electrolyte. The all-lithium salts were used as electrolytes in secondary lithium-ion batteries. The discharge capacity of the PAS/Li batteries with Li3PW12O40 electrolyte solutions reaches to 148 (mA·h)/g and the cyclic life is up to 380 times, much better than those of commercialized products with LiClO4 and LiAsF6 as electrolytes. 
all-lithium salt; heteropoly compound; electrolyte; lithium-ion secondary battery