A few days ago, Toshiba exhibited a lithium battery that uses purple tungsten oxide as the negative electrode material at the 2018 Yokohama People and Vehicle Technology Exhibition, which can achieve ultra-fast charging. The advantages of this type of battery are obvious in a wide range of applications, from automobiles, micro/mild hybrid trains, elevators, uninterruptible power supplies (UPS) to high current power supplies. It is understood that tungsten oxide powder developed by Toshiba Materials is used as an