Performance of copper-doped V2O5 xerogel in coin cell assembly

Copper-doped, vanadium pentoxide xerogel is prepared through a simple sol-g el procedure, followed by heterogeneous doping and freeze-drying. Composite cathodes were formed by spray-coating a mixture of the Cu-doped material, carbon, and binder onto aluminum foils. The composite cathodes were studied in 2016 coin cells with lithium anodes and supported liquid electrolyte. T he electrochemical performance of the doped material is excellent. Up to 2. 2 mol of lithium per mol of doped V2O5, can be reversibly intercalated. The composite cathodes also showed very high intercalation rate performance an d an excellent cyclability with no capacity fading over a few hundred cycle s (> 450). (C) 1999 Elsevier Science S.A. All rights reserved.