Japanese startups like 3Dom are leading the race to create high-performance power packs that could become the next global standard for batteries, reports Nikkei Asian Review.
Started by Tokyo Metropolitan University professor Kiyoshi Kanamura, 3Dom is hoping to commercialize its lithium-metal batteries by 2022: Its battery can produce twice the amount of energy than a Li-ion power source of similar weight, and its performance has already been demonstrated.
The only drawback with such batteries is that they are prone to short-circuiting and igniting – courtesy of dendrites.
3Dom has resolved this by creating a separator made of polyimide, a highly heat-resistant plastic that will not burn even at 400ºC.
With spherical holes several hundred nanometers in diameter arranged in perfect order, the separator allows a uniform flow of ions and a uniform chemical reaction.