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Table 3 VQA correlation analysis of different voltage intervals

From: Online estimation of SOH for lithium-ion battery based on SSA-Elman neural network

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End

3.4 V

3.5 V

3.6 V

3.7 V

3.8 V

3.9 V

4.0 V

4.1 V

4.2 V

3.3 V

− 0.8669

− 0.7329

− 0.6854

− 0.6870

− 0.7467

− 0.8615

− 0.7188

− 0.9825

− 0.9493

3.4 V

 

− 0.4920

− 0.5103

− 0.5616

− 0.6652

− 0.8120

− 0.7127

− 0.9772

− 0.9572

3.5 V

  

− 0.6182

− 0.6560

− 0.6923

− 0.7232

− 0.4458

− 0.9690

− 0.9824

3.6 V

   

− 0.6734

− 0.7241

− 0.2432

− 0.4247

− 0.9192

− 0.8123

3.7 V

    

0.6827

0.4091

0.4032

0.3221

− 0.0319

3.8 V

     

− 0.8447

0.5349

− 0.7866

0.2480

3.9 V

      

0.7675

0.8415

0.9710

4.0 V

       

0.6962

0.9739

4.1 V

        

− 0.4755