Syllabus
Unit 1
Basic Principles
Review of Faradays laws, thermodynamics of electrochemical cells and kinetics of electrochemical reactions. Performance evaluation of energy storage devices – cell voltage – capacity – specific and volumetric energy and power densities, Peukert curves, Ragone plot, discharge profiles. Factors affecting the performance. Design and classification of electrochemical storage devices, importance of nanotechnology. Battery components – current collector, separator, electrolyte and active materials.
Unit 2
Primary Batteries
The chemistry, fabrication and performance aspects, packing classification and rating of the following batteries – zinc-carbon – Leclanche type, zinc alkaline – duracell, zinc/air, zinc-silver oxide batteries, lithium primary cells – liquid cathode – solid cathode and polymer electrolyte types.
Unit 3
Secondary Batteries
Fabrication, performance characteristics, electrode and electrolyte materials of the following batteries: Lead acid and VRLA, nickel-cadmium, nickel-zinc, nickel-metal hydride batteries, silver peroxide, lithium-ion batteries, lithium polymer cells. Advanced Batteries for electric vehicles, specifications – sodium-beta and redox batteries.
Unit 4
Reserve Batteries and Fuel Cells
Reserve batteries – water activated, electrolyte activated and thermally activated batteries – remote activation – pyrotechnic materials. Fuel Cells-Principle, chemistry and functioning – carbon, hydrogen-oxygen, proton exchange membrane (PEM), direct methanol (DMFC), molten carbonate electrolyte (MCFC) fuel cells, solid oxide fuel cells and outline of biochemical fuel cells. Fuel cell stack technology.
Unit 5
Supercapacitors
Types – double layer, hybrid and pseudo capacitors, symmetric and asymmetric capacitors. Mechanism of energy storage, materials for supercapacitors, carbon materials-activated carbon, carbide-derived carbon, CNT, graphene, mesoporous carbon, metal oxides, metal sulphides, conducting polymers. Effect of ratio of ion and molecule sizes and pore sizes. Electrolytes- aqueous, organic and ionic liquid. Determination of capacitor performance-cyclic voltammetry, galvanostatic charge-discharge, impedance spectroscopy. Flexible and wearable supercapacitors.