Table 2. Summary of Electrochemical and Mechanical Data.
σ (mS cm–1)c |
||||||
---|---|---|---|---|---|---|
entry | Polymer Electrolytea | Tg (°C)b | 30 °C | 60 °C | G′ (MPa)d | tLi+e |
1 | P1 | –40, 105 | 0.11 | 0.34 | 0.82 | 0.33 |
2 | P2 | –23, 90 | 0.23 | 2.5 | 67 | 0.62 |
3 | P3 | –45, 84 | 0.67 | 9.1 | 0.52 | 0.38 |
430a | PEO | –64 | ∼10–4 | 0.14 | 0.4–1f | 0.2 |
528,30b | PEO-PS | –40, 80 | 0.012 | 0.23 | 10 | 0.1 |
624e | PEO34-PC | –48 | 0.037 | ∼0.1 | n/a | n.a |
724f | PEO34-PC-X | –45 | 0.032 | 1.3 | <0.01 | 0.59 |
824b | PEEC | –34 | 0.016 | ∼0.1 | n/a | 0.40 |
924a | P(EC-co-EO) | –43 | ∼0.1 | 0.48 | n/a | 0.66 |
1024c | PTEC | –36 | 0.011 | 0.2g | n/a | 0.39 |
Salt content varies; parameters reported for electrolytes at their optimized salt ratio for ionic conductivity. P1–P3 = this work, PS = polystyrene, PEO34-PC = poly(ethylene oxide carbonates) with 34 EO units to every carbonate, PEO34-PC-X = cross-linked with 10 wt % MA, cross-linked PEEC = poly(ethylene ether carbonate), and PTEC = poly(triethylene glycol carbonate).
Glass transitions from DSC.
Ionic conductivity.
Storage modulus at 30 °C.
Lithium transference number. n/a = not reported.
Dependent on crystallinity.
T = 80 °C.