Scientists around the world have been actively looking for eco-friendly alternatives to conventional chemical-based batteries. In one such effort, researchers at the Indian Institute of Technology Bombay (IIT Bombay) have designed a micro-combustor that is efficient and environment-friendly. The study, funded by the Science and Engineering Board (SERB) and Department of Science and Technology (DST), has been published in various journals including Applied Physics Letters, Energy Conversion and Management, and Applied Energy.