Reserchers developed sugarcane waste yields carbon for use in batteries

Date: September 23, 2016

Li-ion batteries sugar cane India Andhra pradesh

Scientists used a low power microwave system to convert sugarcane bagasse into anode-grade porous, conducting, activated carbon material for use in Li-ion batteries. 

They had carried out initial carbonisation overnight at room temperature by mixing bagasse with concentrated sulphuric acid. The acid treatment had dissolved most of the inorganic impurities present in bagasse except silica. This helped in forming robust carbon double bond backbone structure. The solid product obtained from acid treatment was washed thoroughly and was oven-dried at 70 degree C. Later it was mixed with potassium hydroxide to form slurry. The slurry is then heated in a microwave oven for a few minutes. The heating had led to graphitisation and pores were formed when potassium hydroxide reacts with carbon.

Is is very useful as the process will bring down the time to get anode-grade carbon dramatically. Thus, it will help to reduce electrical energy input substantially. The quality of carbon and battery performance using this carbon is quite good and competitive compared with carbon made through other complicated schemes and processes. The carbon was produced using Simple kitchen microwave used to derive high-quality material in minutes.