• Dibu P K
• Shekharprasad J N Rai
• Amaresh
• Abhinand P
• Purshotham P Katti

The concept of harvesting electrical energy onboard has aroused a renewed interest in aircraft industries. In this context a piezoelectric material is proposed that harvests mechanical vibrational energy available in considerable amount from aircraft wing vibrations due to turbulence. Embarked piezoelectric material which is an electro mechanical converter when replaced in wing panels which undergoes mechanical vibrations and there by generating electricity. A static converter transforms the electrical energy into carbon fibre structural batteries placed in wing panels. We are developing structural carbon fiber composites with battery functionality. These devices can withstand structural loads while simultaneously storing electrical energy. By designing with enough structural and energy efficiency, these materials enables significant system-level weight reductions by replacing metallic components while providing storage of electrical energy for uses in an aircraft. To enable this concept, we have designed mechanical load-bearing properties directly into the battery electrodes and electrolyte such that each component is itself multifunctional. Carbon fiber fabric as anode material, lithium ion phosphate coated on to aluminum fiber weave as cathode material, and gel polymer electrolytes are each being developed to exhibit a desirable combination of mechanical strength and electrochemical performance. These components are being integrated using moldable, scalable, cost-effective composite processing techniques. A prototype of a real system is reviewed to demonstrate potential benefits.

Piezoelectricity, carbon fiber, structural battery.

"Electrical energy harvesting in aircraft by using carbon fiber battery.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.437-449, May-2019, Available :http://www.jetir.org/papers/JETIR1905C61.pdf

"Electrical energy harvesting in aircraft by using carbon fiber battery.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp437-449, May-2019, Available at : http://www.jetir.org/papers/JETIR1905C61.pdf