https://www.livemint.com/news/india/iit-kharagpur-researchers-develop-new-fast-charging-sodium-ion-batteries-govt-11657103465974.html
Dr. Amreesh Chandra, Professor in the Department of Physics at the Indian Institute of Technology Kharagpur has been researching to develop energy storage technologies, which are based on Na-ion, and his team has developed a large number of nanomaterials. The team has used sodium iron phosphates and sodium manganese phosphates which they synthesized to obtain Na-ion-based batteries and supercapacitors with support from the Technology Mission Division (TMD) of the Department of Science and Technology (DST), Government of India. These sodium materials were combined with various novel architectures of carbon to develop a battery.