Research Article

Estimation of State of Charge for Lithium-Ion Battery Based on Finite Difference Extended Kalman Filter

Table 1

Parameter constraints.

ParameterInitial valueMinimumMaximum

3.3 V2 V3.6 V
0.01  0  1 
0.005  0  1 
0.005 F0 F1 F
10000  1  100000 Ω
10000 F1 F100000 F