Facile Synthesis and Electrochemical Analysis of Zn-Doped V₂O₅ Anode Materials for High-Rate Li Storage

Table 1

Abundance ratio for the V valence states observed in the V 2p_3/2 XPS spectra of the V₂O₅ and Zn-V₂O₅ samples.

Sample	Peak indexing	V^5+	V^4+
V2O5	Peak (eV)	516.9	515.7
	Area (%)	97.3	2.7
Zn-V2O5	Peak (eV)	517	515.7
	Area (%)	94.2	5.8