Electric Double Layer Capacitor Electrodes Particle Adsorbent Composite (PAC) electrodes are 10 wt% PTFE
binder and 90% particulate carbon. They are strong and flexible,
suitable for coin and jelly roll type electric double layer capacitors
(EDLC). The electrode fabrication process allows the properties
of the carbon to reflect in the capacitor performance. PACMM™ sheets
for supercapacitors have been made with the following activated
carbons KURARAY CHEMICAL, Bellfine by Kanebo, Maxsorb by Kansai
Coke, Norit, Futamura Chemicals (KBK), and Westvaco. Specifications The table below shows some performance figures for electrodes
with various carbons:
| Carbon |
Thickness (microns) |
Electrolyte |
Farads/cm3 |
Farads/g |
RC (sec) |
| PACMM™ 202 |
279 |
1 M H2SO4 |
71 |
100 |
0.6 |
| PACMM™ 202 |
138 |
1 M H2SO4 |
72 |
107 |
0.2 |
| PACMM™ 202 |
135 |
1M TEABF4/Ac |
42 |
63 |
0.5 |
| PACMM™ 202 |
234 |
1 M H2SO4 |
63 |
107 |
0.5 |
| PACMM™ 100 |
275 |
1 M H2SO4 |
32 |
80 |
0.1 |
| PACMM™ 100 |
75 |
1 M H2SO4 |
25 |
74 |
0.01 |
| PACMM™ 100 |
75 |
1M TEABF4/Ac |
23 |
64 |
0.1 |
| PACMM™ 210 |
255 |
1 M H2SO4 |
69 |
98 |
0.8 |
| PACMM™ 210 |
146 |
1 M H2SO4 |
80 |
113 |
0.5 |
| PACMM™ 210 |
145 |
1M TEABF4/Ac |
43 |
66 |
0.6 |
| PACMM™ 203 |
251 |
1 M H2SO4 |
43 |
96 |
0.3 |
| PACMM™ 203 |
163 |
1 M H2SO4 |
48 |
104 |
0.2 |
| PACMM™ 203 |
160 |
1M TEABF4/Ac |
28 |
69 |
0.3 |
The thicker electrodes were characterized in aqueous electrolytes.
Thinner electrodes were characterized in aqueous and organic electrolytes.
Capacity values are given on an electrode basis (e.g. F/g/electrode). |
