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The next few years will show whether the batteries in electric cars from GM and Nissan are safe and reliable.
A new paperlike material could lead to novel types of light and flexible materials.
A new material prevents overheating, making lithium-ion batteries safer for use in vehicles.
GM and Nissan hope to reduce costs by reusing depleted batteries.
Battery breakthroughs could lower costs and improve performance for electric vehicles and renewable energy storage–but commercializing these new technologies will be challenging.
Lithium-ion batteries with nanotube electrodes could go longer between charges.
A metal pad that can recharge devices placed on top of it has come to market.