An Innovative Hybrid Energy Storage Device for Electric Vehicle

Dr. Somashekhar Swamy, Dr. Sanjeev C. Mhamane and Jitesh Roman
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Dr. Somashekhar Swamy: H.O.D. (EE), V.V.P.I.E.T. Solapur
Dr. Sanjeev C. Mhamane: H.O.D. (E&TC), S.S.W.C.O.E. Solapur
Jitesh Roman: H.O.D. (BS&H), V.V.P.I.E.T. Solapur

International Journal of Research and Scientific Innovation, 2025, vol. 12, issue 7, 554-563

Abstract: The widespread adoption of electric vehicles (EVs) demands on-board energy storage that simultaneously delivers high energy density for range, high power density for acceleration and regenerative braking, long cycle life, and competitive lifecycle cost [1]–[3], [7]. We present a hybrid energy storage device (HESD) that couples a lead-acid battery string with a super capacitor (SC) bank through a semi-active bidirectional DC/DC converter [5], [10]. Compared with a battery-only baseline, the proposed HESD improves peak power capability by 47 %, reduces battery current ripple by 68 %, and extends estimated battery life by 34 % under the UDDS urban drive cycle simulation [2], [6], [8]. A 10-year total cost of ownership (TCO) analysis shows a 975â ¢ð ‘›â ¢ð ‘’â ¢ð ‘¡â ¢ð ‘ â ¢ð ‘Žâ ¢ð ‘£â ¢ð ‘–â ¢ð ‘›â ¢ð ‘”â ¡ð ‘ â ¢ð ‘’â ¢ð ‘Ÿâ ¢ð ‘£â ¢ð ‘’â ¢â„Žâ ¡ð ‘–â ¢ð ‘ â ¢ð ‘™â ¢ð ‘’,ð ‘‘â ¢ð ‘’â ¢ð ‘ â ¢ð ‘ â ¢ð ‘–â ¢ð ‘¡â ¢ð ‘’â ¢ð ‘Ž1 650 higher upfront investment, owing to fewer battery replacements and higher charging efficiency [6], [20]. Experimental results on a 1 kW laboratory prototype validate the control strategy and corroborate the simulation [4], [9].

Date: 2025
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