Anuj Bhatia

Lithium-Ion Batteries for Electric Vehicles Anuj Bhatia

The automotive industry is fast moving away from traditional internal combustion (IC) engines towards electric vehicles (EVs). The global fleet of light-duty EVs grew from a few thousand just a decade ago to around 10 million vehicles in 2020. The growing acceptance of EVs is the outcome of technological advancements made in energy storage batteries coupled with their falling cost and fast charging capabilities. Further with the need to deal with global environmental problems and growing interests in decarbonization, the attention is being directed toward solutions to the problems of energy use. The EVs that use rechargeable batteries for traction have been commercialized and their use is rapidly becoming more widespread due to both their environmental performance and economics. Lithium-ion (Li-ion) battery technology is currently the dominant core enabling technology for EVs and electronic gadgets. The Li-ion battery packs used in electric cars are like those used in cell phones and laptop computers, only they're much larger. They're far different than the heavy lead-acid batteries used in conventional cars and have a much higher energy density. New cell chemistries are being introduced to make batteries lighter and store enough energy in smaller packs so that EVs can provide increasing drive range per recharge. Major breakthroughs in material chemistries are still required to achieve a longer travel range per recharge (> 500 km) at lower costs (