TY JOUR TI Research of Lithium-Ion Battery Characteristics KW Lithium-ion battery KW functional diagnostics KW equivalent circuit KW internal resistance of the battery JO Proceedings of Petersburg Transport University AU Borisov, P.V. AU Vorob'ev, A.A. AU Konstantinov, K.V. AU Samarkina, I.K. PY 2023 IS 20 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"