NANO BATTERIES

By Soumya Yadala

UNIVERSITY OF TULSA

DEFINITION

Batteries that are fabricated employing technology at the nanoscale.

INTRODUCTION

Evolution of Nano batteries

Comparison of Lithium Ion Batteries & Nano Batteries

Li-Ion Battery:

Electrolyte : Ether

Anode : Lithium Cobalt Oxide.

Cathode : Graphite

Mechanism of Li-ion Battery

Solid Electrolyte Interface Barrier

Li-Ion Battery:

Drawback : The battery cannot be charged

at temperatures before 320 F. Reason : Due to the formation of solid electrolyte interface barrier.

Nano Battery:

Advantage : Electrode is made up of nanomaterial.

Result : No formation of solid electrolyte interface barrier.

Mechanism of Nano Battery

Anode

Li+ Li+

Li+ Li+

Li+ Li+

Cathode

Li+

Li+

Li+

Li+

Charger

Current

Separator

Electrolyte

(Polymer battery: gel polymer electrolyte)

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.

Nano Battery:

Advantage : Electrode particles are non- structured.

Result :

• Shortens the existing distance with in the electrode material.

• Accelerates the recharging and discharging rate.

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

At University of Tulsa

Under Dr Dale Teeters from the Dept of Chemistry and Biochemistry.

Research and Development

Nano Battery:

Electrolyte : A wax solution of PEO and lithium triflate.

Anode : Vanadium Oxide

Cathode : Graphite

Charging and Testing

Atomic force microscope

AC Impedance

Testing Instrument

AFM

Atomic ForceMicroscope Tip

Any Questions

?