Vehicle Body Member Having Charging and Discharging Function

A vehicle body member includes a first cell unit including a first negative electrode part and a first positive electrode part, a second cell unit including a second negative electrode part and a second positive electrode part, a reinforcing insulating layer interposed between a first surface of the first cell unit and a second surface of the second cell unit, a first positive electrode current collector connected to the first positive electrode part, a second positive electrode current collector connected to the second positive electrode part and connected in parallel to the first positive electrode current collector, a first negative electrode current collector connected to the first negative electrode part, and a second negative electrode current collector connected to the second negative electrode part and connected in parallel to the first negative electrode current collector.