Impedance parameters of the NVPF/C composites.

Sample	R S (Ω cm−2)	R CT (Ω cm−2)	σ (Ω cm2 s−1/2)	D (cm2 s−1)
NVPF/C-1	8.59	409.41	20.34	2.13 × 10−12
NVPF/C-2	8.48	345.52	17.98	2.71 × 10−12
NVPF/C-3	8.73	495.27	35.60	6.94 × 10−13