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Table 1 Rs, Rct, and DLi+ values of FeF3·0.33H2O, FeF3·0.33H2O/CNT, and FeF3·0.33H2O/C + G electrodes after the 3rd and 50th cycle

From: High-Performance Cathode Material of FeF3·0.33H2O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries

Samples

3rd cycle

50th cycle

Rs (Ω)

Rct (Ω)

DLi+ (cm2 s−1)

Rs (Ω)

Rct (Ω)

DLi+ (cm2 s−1)

FeF3·0.33H2O

4.2

115.7

7.63 × 10−13

8.2

202.6

2.96 × 10−13

FeF3·0.33H2O/CNT

4.0

68.2

1.19 × 10−12

4.2

115.7

7.10 × 10−13

FeF3·0.33H2O/C + G

3.8

50.9

1.67 × 10−12

3.9

86.5

1.21 × 10−12

  1. Equation 1 calculate the diffusion coefficient of Li+
  2. Equation 2 a relationship between σω and Z’
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