PAPER BATTERYT.RAJESHROLL NO :13751A04G6

V.BHANU PRAKASHROLL NO:13751A04H7

SREENIVASA INSTITUTE OF TECHNOLOGY AND MANAGEMENT STUDIES(AUTONOMOUS)

Affiliated to J.N.T.U.A, Ananthapur & NBA, NAAC AccreditedCHITTOOR-517127

POWERPOINT PRESENTATION ON

Dept of ECE

A paper battery is a flexible, ultra-thin energy storage and production device formed by combining carbon nanotube with a conventional sheet of cellulose-based paper.

A paper battery acts as both a high-energy battery and super-capacitor , combining two components that are separate in traditional electronics .

WHAT IS A PAPER BATTERY?

GENERAL Li-ION BATTERY

Generally Li-ion re-chargeable batteries are used in mobiles , laptops and most of the electronic devices.

During discharge and charging, lithium ions Li+ carry the current from the negative to the positive electrode and vice-versa respectively, through the non-aqueous electrolyte .

Disadvantages of Li-Ion• EXPENSIVE

• WEIGHT & SIZE

• COST & CHARGE

• ENVIRONMENTAL HAZARDS

• LOW SPECIFIC POWER

WHY TO USE PAPER BATTERY?Ultra-thin size & flexible structure.

Exhibits property of super-capacitor(22F-36F per gram)

Operating temper ature(-75 to 100 degree celsius)

provide both long-term, steady power production and bursts of energy.

Cost-effective.

Carbon nanotube is the main concept behind paper battery

Carbon nanotubes (CNTs; also known as buckytubes) are allotropes of carbon with a cylindrical nanostructure.

CNTs exhibit extraordinary strength and unique electrical properties, and are efficient thermal conductors.

CARBON NANOTUBES

Spinning Carbon Nanotube

Graphene structure Rolled at angle CARBON NANOTUBE

•Nanotubes are members of the fullerene structural family. The diameter of a nanotubes is on the order of a few nanometers and they are long, hollow structure with the walls formed by one-atom-thick sheets of carbon, called graphene. These sheets are rolled at specific and discrete angles, and the combination of the rolling angle and radius decides the nanotube properties

CONSTRUCTION OF PAPER BATTERYTake a cellulose-based paper

and apply black carbon ink on it

Spread this ink on the paperAfter spreading ink,laminate a

thin film over the cellulose surface

Heat the cellulose paper for 5 min at 80 deg

Then , peeloff the film from the substrate

The electrodes of paper battery are formed by film.the electrodes LTO and LCO to different films

STRUCTURE OF PAPER BATTERY

WORKING Traditional Batteries produce electrons through a

chemical reaction between electrolyte and metal.

paper battery produces electrons due to the interaction of electrolytes LTO & LCO.

Electrons collect on the negative terminal of the battery and flow along a connected wire to the positive terminal during discharging.

Electrons must flow from the negative to the positive terminal for the chemical reaction to continue.

• The flexible battery can function even if it is rolled up, folded or cut.

•We can get 2.5 volts of electricity from a sample the size of a postage stamp.

• Biodegradable & Non –toxic

•Reusable & Recyclable

•Easy moldable into desired shapes & Sizes

•Customizable output

•Durable & Rechargeable

ADVANTAGES

APPLICATIONS

Paper battery offers future power

The black piece of paper can power a small light.

Flexible paper batteries could meet the energy demands of

the next generation of gadgets.

The ambition is to produce reams of paper that could one day power a car.

The paper battery was a glimpse into the future of power storage.