necro81 writes "It has long been recognized that adding capacitors in parallel with batteries can improve the performance of hybrid and electric vehicles by accepting and supplying spikes of power, which reduces stress on the battery pack, extending range and improving cycle life. The challenge has been figuring out where to put them, when batteries already compete for space. A new research prototype from Imperial College London has integrated them into the body panels and structural frame of the vehicle itself. In their prototype, carbon fiber serves as both the structure for the vehicle and electrode for the energy storage sandwiched within."
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