IIT Hyderabad developed alternate to Li-ion batteries


IIT Hyderabad developed alternate to Li-ion batteries

IIT Hyderabad researchers have developed a noval dual carbon battery alternative to conventional lithium-ion batteries. They have developed a 5V Dual Carbon Battery utilising self-standing carbon fibre mats as both electrodes. The battery consisting of zero transition metal is environmentally benign. It may cut down the overall battery cost by 20-25% and is expected to curb the unpredictability in market price.


The research team believes that developed cells may find potential uses in high voltage applications, sophisticated battery-run medical devices, regenerative braking systems in electric vehicles, and stationary grids. The model sets aside the requirement of toxic, costly, and heavy transitional metals lithium-ion batteries require for functioning, the institute said.


While rechargeable Lithium-ion batteries (LIBs) are projected to meet future electric mobility, electric aviation, and stationary grid energy storage targets within 2030, they require toxic and costly metals like cobalt, nickel, and manganese, for functioning.

Moreover, geologically unsymmetrical distribution of lithium and cobalt along with geopolitics and unethical child labour centred on mining, causes rampant fluctuations in raw material cost. It affects the market price stability of large LIB packs used in electric vehicles.


Dr. Surendra Kumar Martha, said, "The study will be extrapolated to push the energy density limits further, and their broad vision includes introducing the dual carbon system as a cheaper LIB alternative to the Indian Market."


The research for the novel dual carbon battery was carried out by Shuvajit Ghosh and Udita Bhattacharjee, PhD students at IIT Hyberabad, under the supervision of Dr. Surendra K. Martha, in collaboration with Oak Ridge National Laboratory, USA, and Naval Materials Research Laboratory, Mumbai. Naval Research Board (DRDO) supported the project.


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