Electric vehicles still have limited range, expensive batteries, and few charging stations. While mainstream manufacturers seek to improve battery tech, the Korea Advanced Institute of Science and Technology (KAIST) has a different idea. Who needs big batteries and stations when the road itself can charge vehicles? In July, two new buses began public service in the South Korean city, Gumi. The buses, or online electric vehicles (OLEVs), travel a road like a wireless cellphone charging mat--only,...
Electric vehicles still have limited range, expensive batteries, and few charging stations. While mainstream manufacturers seek to improve battery tech, the Korea Advanced Institute of Science and Technology (KAIST) has a different idea. Who needs big batteries and stations when the road itself can charge vehicles? In July, two new buses began public service in the South Korean city, Gumi. The buses, or online electric vehicles (OLEVs), travel a road like a wireless cellphone charging mat--only,...
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