What  is your problem more specifically?

I know a friend of mine was working on this problem for her research and the following are the papers she published in this regards. You may find these useful.

http://www.sciencedirect.com/science/article/pii/S0378775307007094

http://www.sciencedirect.com/science/article/pii/S0196890407001550

to understand how the estimation using EKF is working, read the attached paper

hello, how can we model the battery by code?Thank you.

hello , how can we made matlab code for SOC calculation for batteries.

Philippe Martin Mohamed Abdelrahem Hello sir i also recently started working on EKF for SOC estimation, can you please explain how to generate the A and C matrix whether it will be random or on what basis we will generate plus about the error covariance matrix time update how to define covariance it will be based on prediction value ??

EC_pre=A*EC_last*A'+ Noise;

here how we will define EC_last with respect to SOC estimation

how can we right code for ocv method of battery diagnolisis

Hi Monali Gandhi please follow my paper as you may find an equation of the voltage-SOC relationship of a particular Li-Ion battery that might be used for OCV method. thanks

Hello Md Murshadul Hoque I'm also faced with the same problem you did a while ago. I need help with the MATLAB codes for SOC estimation using an Extended Kalman Filter. How did you tackle this issue?