ΔT
–0.4
–0.3
Temperature Deviation Comparison
at 5 min
–0.2
–0.1
0
0.1
0.2
0.3
0.4
T-T avg [°C]
0.1
3.25°C
Y[m]
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0.1
X[m]
2 tabs
0.78°C
0.37°C
0.19°C
Y[m]
Y[m]
Y[m]
Y[m]
Y[m]
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
X[m]
5 tabs
0.1
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0.1
X[m]
10 tabs
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
X[m]
Continuous tab
(a)
Electrochemical Reaction Rate Comparison
in the inner electrode pair at 5 min
i˝ [A/m 2 ]
120
121
122
123
124
125
126
127
128
129
130
Δi˝/i˝ avg
0.1
32.2%
6.6%
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0.1
X[m]
2 tabs
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
X[m]
5 tabs
0.1
Y[m]
2.2%
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
X[m]
10 tabs
0.1
0.2%
Y[m]
0.05
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
X[m]
Continuous tab
(b)
215
Electrochemical Supercapacitor Design, Fabrication, and Operation
FIGURE 5.7
(See color insert.) (a) Temperature and (b) electrode utilization profiles over area of a battery
electrode for increasing number of solder tabs within roll of wound cell. (Source: Lee, K. J.,
G. H. Kim, and K. Smith. 2010. In Proceedings of 218th ECS Meeting, NREL/PR-5400-49795. With
permission.)