Hydrogen peroxide (H2O2) is a versatile compound used in various industrial applications, yet its production is costly and energy-intensive. Researchers at the Indian Institute of Science (IISc) have introduced a groundbreaking approach to address this challenge. By leveraging zinc-air batteries, they have devised a method to produce H2O2 on-site while simultaneously degrading toxic industrial pollutants such as dyes. The innovation lies in controlling the oxygen reduction reaction within the battery to selectively generate H2O2. This is achieved through the use of metal-free carbon-based catalysts, modified with oxygen functional groups to enhance the efficiency of the process. The researchers emphasize the significance of this approach, which eliminates the need for traditional rare metal catalysts, making H2O2 production more sustainable and cost-effective. One of the key advantages of this technique is its dual functionality. Not only does the battery produce H2O2, but it also stores electrical energy, further enhancing its utility. Moreover, the generated H2O2 is effectively utilized to degrade toxic pollutants like textile dyes, thereby addressing environmental concerns and improving the overall efficiency of the process. While the three-phase nature of the metal-air battery poses handling challenges, the researchers are optimistic about the scalability and versatility of the method. They envision its potential applications in various settings, including remote energy generation, highlighting its sustainability and energy efficiency. Overall, this innovative strategy showcases the potential of integrating battery technology with chemical processes for sustainable industrial applications.