Preparation and Electrochemistry of Silver Vanadium Phosphorous Oxide, Ag(2)VO(2)PO(4)

作者：Marschilok Amy C^*; Takeuchi Kenneth J; Takeuchi Esther S

来源：Electrochemical and Solid-State Letters, 2009, 12(1): A5-A9.

DOI：10.1149/1.2998546

• electrochemical electrodes
• electrochemistry
• materials preparation
• secondary cells
• silver compounds
• thermal stability
• vanadium compounds

Recently, there has been interest in phosphate cathodes for lithium batteries due to the excellent chemical and thermal stability of LiFePO(4). Vanadium oxide bronzes have attracted attention due to silver vanadium oxide (Ag(2)V(4)O(11)) batteries being used as power implantable devices. We report the first investigation of silver vanadium phosphorous oxide (Ag(2)VO(2)PO(4)) as a cathode material in lithium cells. While the synthesis of Ag(2)VO(2)PO(4) has been previously reported, this is the first exploration of its electrochemistry. The Ag(2)VO(2)PO(4) material yielded 205 mAh/g to 2.0 V and 270 mAh/g to 1.5 V under constant current discharge and supported 50 mA/cm(2) pulses above 1.5 V.

• 出版日期2009