An Electrochemical Single Particle Model-Based State of Charge Estimation Using Orthogonal Collocation Levenberg Marquardt Backpropagation Hybrid Neural Network. - Sk Bittu; Sukanta Halder; Nilanjan Das; Soumava Bhattacharjee; Mousam Ghosh; Uppalapati sudheer Kumar (IEEE Trans. Consumer Electron., 2026)