Aluminum batteries are highly safe, highly powered, and can be rapidly charged and discharged. Most importantly, they are environmentally friendly and pollution-free and there is an abundant supply of their constituent materials. ITRI uses the intercalation and deposition of alkali metals on the surface of a graphite negative electrode along with a dual-graphite electrode to increase the discharge voltage of the battery from 2.0 V (as published in Nature) to 3.5 V. Meanwhile, it also uses an ionic composite electrolyte formula to increase the maximum specific capacity (mAh/g) of graphite.
Applications & Benefits
A total of 53 patents have been granted, and this technology received a 2017 Edison Award. The long-term goal of this technology is to provide a large-scale energy storage system for electricity supply. The research team has been stationed in the Shalun Smart Green Energy Science City since 2017. There is a plan for five stations to provide 40 electric bikes for use between the Shalun Smart Green Energy Demonstration Area and THSR Tainan Station. Advanced green energy technologies such as fast-charging aluminum battery modules and fast-charging stations will be verified, in order for them to be introduced to the market, allowing Taiwan to become an international base for advanced research and development on batteries.