Table 1. Comparison of the performance for compounds 1 to 11 by cyclic voltammetry testsa.
No. | MWb | E10(V)c | E20(V)c | ipa/ipcd | Acceptable? |
---|---|---|---|---|---|
1 | 138 | — | — | — | no |
2 | 338 | 3.94 | — | 1.07 | yes |
3 | 194 | — | — | — | no |
4 | 180 | 4.07 | — | 2.11 | no |
5 | 166 | 4.10 | 4.26 | — | no |
6 | 166 | 3.92 | — | 1.04 | yes |
7 | 166 | 3.98 | — | 1.08 | yes |
8 | 152 | 3.96 | 4.14 | — | no |
9 | 196 | 4.30 | — | 1.46 | no |
10 | 183 | 4.48 | — | 1.33 | no |
11 | 156 | 4.17 | 4.35 | — | no |
a1 M LiTFSI in EC/PC/EMC (4:1:5 by weight);
bMolecular weight in a.m.u.;
cThe first and second redox potentials vs. Li/Li+;
dThe ratio of the anodic and cathodic peak currents at the voltage scan rate of 10 mV/s.