paper battery

A
TECHNICAL SEMINAR
ON
PAPER
BATTERY
PRESENTED BY:
P.RAGHUNATHA REDDY,
11F31AO220.
3/26/2015 1DEPT. OF EEE

Cellulose Paper
+ Nano-technology
An Overview of the battery technology that
powers our mobile society.
___________________________
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3/26/2015 2DEPT. OF EEE

INTRODUCTION
• The creation of the paper battery drew from a diverse pool
of disciplines, requiring expertise in materials science, energy
storage and chemistry.
• In august 2007, a research team at Rensselear polytechnic
Institute developed the paper battery,
also known as Nano composite paper.
3/26/2015 3DEPT. OF EEE

GENERAL Li-ION
BATTERY Generally Li-ion re-chargeable batteries are used in mobiles,
laptops and most of the electronic devices.
 3 primary functional component of Li-ion battery are:
1. -ve electrode(graphite)
2. +ve electrode(cobalt oxide)
3.electrolyte( lithium salt in organic solvent)
 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 .
3/26/2015 DEPT. OF EEE 4

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?
3/26/2015 DEPT. OF EEE 5

Battery Chemistry
Electrochemical reaction - a chemical reaction between
elements which creates electrons.
Oxidation occurs on the metals (“electrodes”), which creates the
electrons.
Electrons are transferred down the pile via the saltwater paper
(the “electrolyte”).
A charge is introduced at one pole, which builds as it moves
down the pile.
3/26/2015 6DEPT. OF EEE

• It is a hybrid energy storage device that
combines characteristics of batteries and
super capacitors.
• It takes the high energy storage capacity
of the battery and the high energy density of
the super capacitor which producing bursts
of extreme power.
What is Nanocomposite paper
3/26/2015 7DEPT. OF EEE

Materials and Description
This energy storage device is based on two basic,
inexpensive materials:
 carbon nanotubes
 and cellulose.
Also an ionic liquid provides the third component:
 electrolyte.
3/26/2015 8DEPT. OF EEE

How it is made
• To create this paper we have to first dissolve the cellulose in
the ionic liquid and then infiltrate the cellulose paper with
aligned carbon nanotubes which form the uniform film.
• Then it is solidified on dry ice, after this it is soaked in
ethanol to remove the ionic liquid and dried in a vacuum,
which gives us our final product: Nanocomposite paper.
3/26/2015 9DEPT. OF EEE

BLOCK D IAGRAM
3/26/2015 10DEPT. OF EEE

A paper battery is a flexible, ultra-thin
energy storage and production device
formed by combining carbon nanotube s
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 .
PAPER BATTERY:
3/26/2015 11DEPT. OF EEE

WHAT IS A CARBON NANOTUBE?
 A carbon nanotube is a tube-shaped
material, made of carbon, having a diameter
measuring on the nanometer scale.
 Carbon Nanotubes have many structures,
differing in length, thickness, and in the type
of helicity and number of layers.
 Although they are formed from essentially
the same graphite sheet, their electrical
characteristics differ depending on these
variations, acting either as metals or as
semiconductors.
3/26/2015 12DEPT. OF EEE

 Carbon Nanotubes can be categorized by their structures:
 Single-wall Nanotubes (SWNT)
 Multi-wall Nanotubes (MWNT)
3/26/2015 13DEPT. OF EEE

• While a conventional battery contains a number of
separate components, the paper battery integrates all of the
battery components in a single structure, making it more
energy efficient, Integrated devices.
• The battery contains carbon nanotubes, each about one
millionth of a centimeter thick, which act as an electrode.
The nanotubes are embedded in a sheet of paper soaked in
ionic liquid electrolytes, which conduct the electricity.
How a paper battery works?
3/26/2015 14DEPT. OF EEE

• Electricity is the flow of electrical power or electrons
• Batteries produce electrons through a chemical reaction
between electrolyte and metal in the traditional battery.
• Chemical reaction in the paper battery is between
electrolyte and carbon nanotubes.
• Electrons collect on the negative terminal of the battery and
flow along a connected wire to the positive terminal.
• Electrons must flow from the negative to the positive
terminal for the chemical reaction to continue.
3/26/2015 15DEPT. OF EEE

• The flexible battery can function even if it is rolled up,
folded or cut.
• "If we stack 500 sheets together in a ream, that's 500
times the voltage. If we rip the paper in half we cut
power by 50%. So we can control the power and
voltage issue."
• Because the battery consists mainly of paper and
carbon, it could be used to power pacemakers within
the body where conventional batteries pose a toxic
threat.
• “We wouldn't want the ionic liquid electrolytes in our
body, but it works without them that is we can implant a
piece of paper in the body and blood would serve as an
electrolyte."
3/26/2015 16DEPT. OF EEE

APPLICATIONS
3/26/2015 17DEPT. OF EEE

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.
 The versatile paper, which stores energy like a conventional
battery, can also double as a capacitor capable of releasing
sudden energy Bursts for high-power applications.3/26/2015 18DEPT. OF EEE

CONCLUSION
• This energy storage device is cost-effective because
the device can be able to be used in the smallest and
most diversely designed electronics. Such as cell
phones, mp3 players and medical equipment.
• The researchers say that it can also be used in
automobiles and aircraft. But it has a poor processibility,
being that it is particularly insoluble of infusible. Lastly,
the use of ionic liquid makes the device environmentally
friendly; a major concern in nanotechnology.
3/26/2015 19DEPT. OF EEE

paper battery

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