అవలోకనం

Electrically rechargeable Zinc-air batteries exhibit high specific energy and interesting from an economical and ecological point of view. One of the challenges with Zn-Air batteries is to make them rechargeable in aqueous based system. Scientists at CFCT are addressing this issue and have initiated a program to develop rechargeable Zn-air battery and eventually other metal - air batteries. In the first instance, we have developed and demonstrated rechargeable 12 V Zn-Air battery using air breathing electrodes and ionic liquid electrolyte. The cyclic stability studies were also reported. Presently CFCT has initiated work on development of aqueous electrolyte based rechargeable Zinc-air secondary battery and carried out preliminary studies. The electrode area of the cell has been scaled up from 5 sq.cm to 30 sq.cm and results shows improved cycle life and capacity of the cell and it has provided the scope for further improvement, which is in progress.

Key Features

  • High Energy Density
  • Materials are low cost, non-toxic and environmentally friendly.
  • Easy fuel storage
  • Non-flammable and non-explosive nature

Potential Applications

  • Smart and green grid storage
  • Automobile (Electric Vehicle)
  • Portable

స్థితి

  • Performance and stability are validated at single cell level
  • Scale-up and prototype module fabrication underway

Intellectual Property Development Index (IPDI)

Level 1 2 3 4 5 6 7 8 9 10
వివరణ Basic concepts and understanding of underlying scientific principles Shortlisting possible applications Research to prove technical feasibility for targeted application Coupon level testing in simulated conditions Check repeatability/consistency Prototype testing in real-life conditions Check repeatability/consistency Reassessing feasibility (IP, competition technology, commercial) Initiate technology transfer Support in stabilizing production
స్థితి

For more details on Intellectual Property Development Indices, Click here

  • Karajagi, I., Ramya, K., Ghosh, P. C., Sarkar, A., Rajalakshmi, N., (2020) Nickel Integrated Carbon Electrodes for Improved Stability, Journal of Electrochemical Society 2020 167 130510.
  • Karajagi, I., Ramya, K., Ghosh, P. C., Sarkar, A., Rajalakshmi, N., (2020) Co-doped carbon materials synthesized with polymeric precursors as bifunctional electrocatalysts, RSC Adv 2020,10, 35966-35978.
  • Karajagi, I., Ramya, K., Ghosh, P. C., Sarkar, A., Rajalakshmi, N., (2019) . Ion Immobilized Bifunctional Electrocatalyst for Oxygen Reduction and Evolution Reaction, ACS Appl. Energy Mater. 2019, 2, 11, 7811-7822.
  • Karajagi, I., Ramya, K., Ghosh, P. C., Sarkar, A., Rajalakshmi, N., (2019) Engineering of O2 Electrodes by Surface Modification for Corrosion Resistance in Zinc-Air Batteries, Springer Proceedings in Energy pp 717-723,Springer.com/gp/book/9789811559549.
  • N.Sasikala, K.Ramya, K.S.Dhathathreyan, Bifunctional electrocatalyst for oxygen/air electrode Energy Conversion and Management. 77, 2014, 545-549.