Researchers from Pune’s National Chemical Laboratory (NCL) and Indian
Institute of Science Education and Research (IISER) have used a simple,
cost-effective and quick process to convert sugarcane bagasse into
anode-grade porous, conducting, activated carbon material for use in
Li-ion batteries.
While making anode-grade carbon is currently very expensive and
time-consuming, the Pune researchers were able to produce high-quality
carbon within minutes by using a low power microwave system. The results
of the study were published on July 5 in the journal Electrochimica
Acta.
The quality of carbon used for electrodes depends on the choice of
precursors and the process used for converting the precursors into
carbon. Anode-grade carbon is generally produced through decomposition
at nearly 1000 degree Celsius.
“By using a simple kitchen microwave oven we achieved local heating and
combustion to realise high quality factory-grade carbon materials within
a few minutes,” says Prof. Satishchandra Ogale, the corresponding
author from the Centre for Energy Science at IISER, Pune and formerly
Chief Scientist, NCL, Pune.
“The process time to get anode-grade carbon is cut down dramatically.
The electrical energy input is also reduced substantially,” Prof. Ogale
says.
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