Journal of Chemistry

Research Article

Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries

Table 3

The influence of compression ratio and flow rate on battery overpotential.


C_R(%)	P_V(V)	ε		Q (m³s⁻¹)	V (ms⁻¹)	K (ms⁻¹)	(Am⁻²)	(mV)	(cm²)

10	2	1.052	1.10	1.06 × 10⁻⁷	6.15 × 10⁻⁴	8.32 × 10⁻⁶	1292	38.23	1.91
	3	1.052	1.10	2.58 × 10⁻⁷	1.50 × 10⁻³	1.19 × 10⁻⁵	1844	20.08	1.615
	4	1.052	1.10	4.05 × 10⁻⁷	2.35 × 10⁻³	1.42 × 10⁻⁵	2208	15.49	1.465
	5	1.052	1.10	7.81 × 10⁻⁷	4.54 × 10⁻³	1.85 × 10⁻⁵	2872	11.00	1.36

20	2	0.976	1.08	0.97 × 10⁻⁷	6.71 × 10⁻⁴	8.61 × 10⁻⁶	1337	35.42	1.32
	3	0.976	1.08	2.57 × 10⁻⁷	1.78 × 10⁻³	1.27 × 10⁻⁵	1974	18.15	1.08
	4	0.976	1.08	3.89 × 10⁻⁷	2.69 × 10⁻³	1.50 × 10⁻⁵	2330	14.41	0.94
	5	0.976	1.08	5.56 × 10⁻⁷	3.85 × 10⁻³	1.73 × 10⁻⁵	2688	11.95	0.9

30	2	0.944	1.06	0.88 × 10⁻⁷	7.06 × 10⁻⁴	8.78 × 10⁻⁶	1364	33.93	1.17
	3	0.944	1.06	2.08 × 10⁻⁷	1.67 × 10⁻³	1.24 × 10⁻⁵	1924	18.84	1.04
	4	0.944	1.06	3.23 × 10⁻⁷	2.59 × 10⁻³	1.48 × 10⁻⁵	2295	14.70	0.89
	5	0.944	1.06	5.08 × 10⁻⁷	4.07 × 10⁻³	1.77 × 10⁻⁵	2751	11.61	0.84

60	2	0.794	1.02	0.20 × 10⁻⁷	3.21 × 10⁻⁴	6.41 × 10⁻⁶	996	-	1.1
	3	0.794	1.02	0.48 × 10⁻⁷	7.70 × 10⁻⁴	9.10 × 10⁻⁶	1413	31.60	0.74
	4	0.794	1.02	1 × 10⁻⁷	1.60 × 10⁻³	1.22 × 10⁻⁵	1895	19.27	0.66
	5	0.794	1.02	1.96 × 10⁻⁷	3.14 × 10⁻³	1.60 × 10⁻⁵	2481	13.26	0.65