Battery Group, Samsung Advanced Institute of Technology (SAIT), Yongin 446-712, Korea.
Chem Commun (Camb). 2010 Jun 21;46(23):4190-2. doi: 10.1039/c0cc00281j. Epub 2010 May 10.
A VO(x)-impregnated oxide cathode for lithium ion batteries exhibits a substantial drop in oxygen evolution during high voltage operation. An electrolyte was found to catalyze the gas evolution, and the VO(x) layer could protect the cathode oxide surface from the electrolyte and stabilize the surface oxide ions during their electrochemical oxidation.
锂离子电池 VO(x)-浸渍氧化物阴极在高压运行时会出现氧气析出显著下降的现象。研究发现电解液能够催化气体析出,VO(x)层能够在电化学氧化过程中保护阴极氧化物表面免受电解液侵蚀,并稳定表面氧化物离子。