Electric vehicle battery technology evolution

Developments in battery technology are focusing on reducing lithium dependency and improving safety and longevity through various chemical and material innovations.

Initial efforts highlight the transition toward sodium-ion batteries for urban and commercial use, as well as the pursuit of solid-state batteries to replace flammable liquid electrolytes with solid materials. While lithium-ion remains the market standard, these alternatives aim to address energy density and manufacturing scalability.

Recent research has introduced specific methods to enhance existing and emerging technologies. A joint effort by researchers in Japan and France has utilized xenon difluoride to stabilize nickel-rich layered oxides, significantly improving the capacity retention of lithium-ion batteries. Concurrently, researchers in Australia have developed a zinc-iodine battery using a starch-derived polymer to mitigate the ‘shuttle effect’. This alternative design offers high durability, capable of up to 60,000 charge cycles, while utilizing a water-based electrolyte to reduce environmental and explosion risks.