Updated: April 05, 2021 23:05 IST 5V Dual Carbon Battery utilising self-standing carbon fiber mats do away with the requirement of toxic, costly and heavy transitional metals Share Article AAA 5V Dual Carbon Battery utilising self-standing carbon fiber mats do away with the requirement of toxic, costly and heavy transitional metals The Electrochemical Energy Storage (EES) Lab at IIT-Hyderabad has developed a 5V Dual Carbon Battery utilising self-standing carbon fiber mats as both electrodes (cathode and anode). This new model sets aside the requirement of toxic, costly and heavy transitional metals. Energy economy based on renewable sources has been put forward as a way out to reduce dependence on fossil fuel. Rechargeable lithium-ion batteries (LIBs) are projected to meet future electric mobility, electric aviation, and stationary grid energy storage targets by 2030.