Batch Composition (mol%)

σ (W cm)−1 at 300˚C

Activation energy Ea (e.v)

60Li2O∙40P2O5

5.7 × 10−4

0.53

20Li2O∙80P2O5

1.1 × 10−6

1.07

58Li2O∙2Cr2O3∙40P2O5

2.5 × 10−5

0.59

58Li2O∙5Cr2O3∙37P2O5

2.0 × 10−3

0.45

48Li2O∙5Cr2O3∙47P2O5

4.7 × 10−5

0.69

38Li2O∙5Cr2O3∙57P2O5

1.4 × 10−4

0.70

20Li2O∙5Cr2O3∙75P2O5

2.2 × 10−5

0.93