1. NANO BATTERIES By Soumya Yadala UNIVERSITY OF TULSA

2. DEFINITION  Batteries that are fabricated employing technology at the nanoscale. INTRODUCTION  Evolution of Nano batteries

3. Comparison of Lithium Ion Batteries & Nano Batteries  Li-Ion Battery:  Electrolyte : Ether  Anode : Lithium Cobalt Oxide.  Cathode : Graphite

4. Mechanism of Li-ion Battery

5. Solid Electrolyte Interface Barrier

6.  Li-Ion Battery:  Drawback: The battery cannot be charged at temperatures before 32 0 F.  Reason: Due to the formation of solid electrolyte interface barrier.

7.  Nano Battery:  Advantage: Electrode is made up of nanomaterial.  Result : No formation of solid electrolyte interface barrier.

8. Mechanism of Nano Battery Anode Li + Cathode Li + Charger Current Separator Electrolyte (Polymer battery: gel polymer electrolyte)

9.  Li-Ion Battery:  Drawback: These batteries are slow to charge and discharge.  Reasons : Due to the long distance Li-ions have to travel through the electrode material in the battery. Speed at which the Li-ions make their way through the electrode material is also slow.

10.  Nano Battery:  Advantage: Electrode particles are non- structured.  Result : Shortens the existing distance with in the electrode material. Accelerates the recharging and discharging rate.

11. Applications of Nano Battery  Electronics  Defense  Aerospace  Industrial The Nanotechnological Batteries make every thing possible from a hybrid vehicle capable of giving 150 miles/gallon to battery powered fabrics which enables soldiers to plug electronic devices into their uniform. The nanobatteries to be more specific has the potential to be used in the following fields:  Health care sectors

12.  At University of Tulsa  Under Dr Dale Teeters from the Dept of Chemistry and Biochemistry. Research and Development

13.  Nano Battery:  Electrolyte : A wax solution of PEO and lithium triflate.  Anode : Vanadium Oxide  Cathode : Graphite

14.  Charging and Testing  Atomic force microscope  AC Impedance

15. Testing Instrument AFM Atomic Force Microscope Tip

16. Any Questions ?