This paper proposes a multiport converter which integrates PV, battery, supercapacitor, and the dc-link for solar electrical vehicle (SEV) applications. The proposed design addresses two main challenges of solar EV: 1) partial shading on different sides of SEV, 2) improving the acceleration and deacceleration operation of the SEV. A dual-input LLC (DLLC) converter can help PV panels to achieve their respective MPPs individually by changing switching frequency and phase shift. On the other hand, the bidirectional hybrid dc-dc converter plays a significant role as the interface between storage sources and dc-link. Adding the supercapacitor as the extra energy storage to the SEV design increases the lifetime of the battery, utilizing the mutual power flows. The proposed multiport converter has many advantages such as a wide voltage-gain range, low voltage stress on the power switches, common ground between the low voltage and high voltage ports, and ZVS soft switching.