Improved Electrochemical Performance of Li_1.25Ni_0.2Co_0.333Fe_0.133Mn_0.333O₂ Cathode Material Synthesized by the Polyvinyl Alcohol Auxiliary Sol-Gel Process for Lithium-Ion Batteries

Table 1

Structural parameters of Li_1.25Ni_0.2Co_0.333Fe_0.133Mn_0.333O₂ are refined by the Rietan-FP.

PVA content	a (Å)	c (Å)	V ()	(%)	(%)	S
0.0%	2.86(1)	14.22(8)	100.9(1)	6.592	5.196	1.0932
2.5%	2.86(1)	14.25(5)	101.0(6)	6.707	5.332	1.0903
5.0%	2.86(3)	14.24(6)	101.1(7)	5.928	5.726	1.0021
7.5%	2.86(5)	14.26(9)	101.5(0)	6.528	5.160	1.0874
9.0%	2.86(1)	14.21(9)	100.8(6)	6.374	5.082	1.0570
10.0%	2.85(3)	14.18(0)	99.9(6)	6.764	5.285	1.1181
11.0%	2.85(7)	14.20(2)	100.4(6)	6.497	5.168	1.0187
12.5%	2.86(1)	14.22(2)	100.8(3)	6.615	5.784	1.2039
15.0%	2.86(3)	14.23(6)	101.0(8)	6.401	5.087	1.0514