Renewable Energy Storage in Redox Flow Battery for Sustainable Environment

Researchers at IIT Delhi have developed a Vanadium Redox Flow Battery that has the capability of providing a clean and sustainable way to store and utilize renewable energy.

Worldwide, tapping and utilizing the potential of renewable energy sources such as solar energy or wind energy etc., is growing exponentially due to environmental pollution and to reduce the dependency on petroleum fuels. However, the challenge of renewable energy sources is that its availability is intermittent in nature. Therefore, it is required to develop advanced energy storage devices.

Presently, renewable energy (solar, wind etc.) is primarily stored in Lead Acid Battery. However, life of the lead acid battery is low. Moreover, lead is very toxic and thus manufacturing of battery and lead (Pb) recovery process from used batteries creates air pollution, water pollution, and produces hazardous solid waste.

A few of the salient features of vanadium redox flow battery are,
  1. Predicted life is around 20 years or more. Scaling of power and energy is independent.
  2. The active component is non-perishable and can be recovered without any hazardous process.
  3. Changing can be done with the help of renewable energy.
  4. Potential of the designed (and patented) battery does not change during a discharge cycle.
  5. No or minimal maintenance make it suitable for range of power requirements such as charging station for e-vehicle, backup power for house, telecom towers, electrical vehicle to grid scale storage and grid-stabilization.

A patent has been filed for the design and operation of the battery. Several organizations have shown interest to collaborate in the research work in order to develop a feasible product. The researchers are in an advanced state of discussion with one of the major battery manufacturers and trying to attract more funds so that the research work can be translated into a product.

Team Members: Manshu Kapoor, Dr. Rajeev Gautam, and Prof. Anil Verma

Research Lab: Sustainable Environergy Research Lab (SERL), Department of Chemical Engineering