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Protection and Control of Modern Power Systems

Table 1 Correlation between impedance curve change and degradation mechanism

From: State-of-health estimation of lithium-ion batteries based on electrochemical impedance spectroscopy: a review

EIS region

Degradation mechanism

SEI growth

Li plating/dendrites formation

Electrolyte decomposition

CEI formation and charge transfer slow down

Corrosion of current collectors

Particle cracking of the cathode

Ohmic region

[65]

[66]

[66,67,68]

 

[67]

 

Mid- frequency region [semiarch 1]

[69,70,71,72,73]

     

Mid-frequency region [semiarch 2]

   

[71,72,73]

  

Low- frequency region

     

[74]

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