To deliver an electric vehicle that¡¯s cheaper, safer and capable of traveling over 800 km on a single charge, the auto industry needs a breakthrough in battery technology.

That¡¯s easier said than done.

Scientists in Japan, China and the United States are among those struggling to crack the code of how to significantly boost the amount of energy a battery cell can store and bring an EV¡¯s driving range into line with a full tank of gas.