With the urgent global need for sustainable energy solutions, the development of affordable, eco-friendly batteries is critical. In India, where key materials for lithium-ion (Li-ion) batteries, such as lithium and cobalt, are scarce, sodium-ion (Na-ion) batteries offer a promising alternative.
Amartya Mukhopadhyay, DPhil, is spearheading efforts to advance Na-ion battery technology, which is approximately 20-25% cheaper than Li-ion batteries, operates in a broader temperature range, and is safer to store. Prof. Mukhopadhyay’s recent breakthroughs in materials science, particularly in creating air- and water-stable sodium-transition metal oxide cathodes and alloy-based anodes, have made Na-ion batteries more practical and sustainable for various uses. Prof. Mukhopadhyay’s approach leverages another key innovation from his lab – “aqueous processing” of battery electrodes – which replaces toxic solvents with water to reduce costs and environmental impact. The first phase of his project focuses on scaling up this water-based process and fine-tuning the batteries to ensure high capacity and long-lasting performance. The second phase will involve producing prototype cells and exploring commercialization opportunities through technology transfer or startup ventures.
This work addresses India’s need for cost-effective, safe, and sustainable energy storage solutions, particularly for renewable energy applications. If successful, Na-ion batteries could reduce India’s reliance on imported materials and provide a greener, more affordable option for the country’s growing energy demands.
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Prof. Amartya Mukhopadhyay...
