This document discusses bio-batteries, which are eco-friendly batteries that use biological materials like enzymes or microorganisms to generate electricity. It describes the history of bio-batteries, the different types including enzymatic and microbial batteries, how they work, potential applications, and advantages over conventional batteries like being non-toxic and renewable. While bio-batteries show promise as a green energy source, the document notes they currently have lower energy retention compared to other batteries. Overall, the document provides an overview of bio-batteries as an environmentally-friendly battery technology.

1. BIO-BATTERIES
BY : AMOGHA. A.K.
EEE- DEPARTMENT

2. • Introduction
• Problem Statement
• Literature Survey
• What is Bio-Battery?
• History
• Need of Bio-Battery
• Types of Bio-Battery
• Construction
• Working of Bio-Battery
• Applications
• Advantages & Disadvantages
• Future Scope
• Conclusion
• References
CONTENTS

3. BIO-BATTERIES
Non-chemical
Non- hazardous
Non-flammable
Environment friendly
Introduction

4. The conventional batteries like lithium-
ion batteries & alkaline batteries etc are
not eco-friendly.
Bio-Batteries are eco-friendly .
Problem Statement

5.  Nicolas. D has worked on microbial fuel cells that are low
power devices which are harvested at their output .
 Kenji Kano has researched on enzymatic bio-batteries.
 Seokheun Sean Choi has studied on paper bio-battery.
Literature Survey

6. Bio-Battery is an
electric generation that
utilizes energy sources
such as carbohydrates,
proteins, Amino acid
and fat by digesting
enzymes.
What is Bio-Battery ?

7. The first microbial “Bio Fuel Cells”
(BFC) was demonstrated in 1912.
The first enzyme-based bio-fuel cell
was reported in 1964 using glucose
oxidize (GOx) as the anodic catalyst
& glucose as the bio –fuel.
History

8. • As we know that energy conservation is the
major issue , the bio-battery is one of the
energy conservation method.
• Bio-batteries are the alternative for clean
renewable energy power source.
Need of bio-battery

9. Enzymatic bio-battery
 Enzymes are involved in breakdown of
glucose.
Microbial bio-battery
 Micro-organisms like Escherichia Coli, Electric
bacteria etc are involved in breaking of glucose.
Types of bio-battery

10. Construction Of Enzymatic Bio-
Battery
•Bio-batteries contain an
anode,cathode,separator &
electrolyte.
•Main function of the separator
is to avoid short circuits.
•Anodes allow electrons to flow
in from outside battery ,
whereas cathode allow current
to flow out from battery.
Bulb
Mediator
Separator

11. • Glucose is broken at anode
• Protons are transferred to
cathode via separator.
• Electrons are transported
to cathode by mediator.
• Cathode uses enzymes for
reduction reaction.
• The reaction generates
electrical energy.
Working of Enzymatic bio-battery

12. Reaction Of Enzymatic bio-battery
Glucose
C6H12O6
Oxygen
O2
Carbon
dioxide
CO2
Water
H2O
ENZYME
BIO -BATTERY
ELECTRICAL ENERGY
+ +

13. Principle Of Microbial Bio-Battery
The bacteria live at anode & convert
reactants like glucose, acetate &
waste water into CO2, protons & e-.
Under aerobic conditions, bacteria
use oxygen/nitrate as a e- acceptor
to produce water.
In absence of O2, bacteria switch
from e- acceptor to an insoluble
acceptor.
Electron transfer take place via
membrane .

14. Construction Of Microbial Bio-Battery
•Soil acts as nutrient – rich anodic
media & proton-exchange
membrane(PEM).
•Anode is placed at a certain depth
within soil.
•Cathode rests at the top of soil &
is exposed to air (O2).
•Soil have microbes & electrogenic
microbes which are needed for
MFC’s which are full of complex
sugars & other nutrients.
•Aerobic microbes act as oxygen
filters &that causes the redox-
potential of soil to decrease with
greater depth.
Microbe

15. Reaction Of Microbial Bio-Battery
Microbial
Fuel Cell
Load
O2+
organic
matter
Reactants
CO2 +H2O
Products
Electrical
Energy

16. GRAPH: Comparison Of Energy
Densities Of Ordinary Batteries & Bio-
Batteries

17. Battery type Energy density Voltage
Unit MJ/Kg Ah/kg Wh/kg V
 Primary Batteries
 AA alkaline battery 0.58 107 160 1.50
 Li-MnO2 battery 0.90 83 250 3.00
 Rechargeable Batteries
 Lead acid battery 0.14 19 40 2.11
 NiMH battery 0.36 80 100 1.25
 Lithium- ion battery 0.54 42 150 3.60
 Bio-Batteries
 100% methanol 19.7 5030 2515 0.50
 100% glucose 15.5 3574 1787 0.50
 100% maltodextrin 17.0 3970 1985 0.50
TABLE: Comparison Of Energy
Densities Of Ordinary Batteries & Bio-
Batteries

18. Applications Of Bio-Batteries
Military
Surveillance &
Spying
devices
Medical
Implants
Insulin pumps
Toys
Toy batteries
Electronic Devices
Laptop & Cell
phones
BIO BATTERY
BIO-BATTERY

19. • Eco-friendly
• Raw materials are easily available.
• Non-Explosive
• Biodegradable
• Safe batteries
Advantages Of Bio-Battery

20. The bio-batteries are less likely to
retain most of the energy during
long term usage.
Disadvantages Of Bio-Battery

21. Future Scope
Bio-batteries have a very bright
future ahead , as they serve a new
form of energy that is proving to be
environmental friendly, as well as
successful, in producing and reserving
energy.

22. Non-toxic
Eco-friendly
Contribution for safe earth
planet.
Conclusion

23.  IEEE MEMS, Jan 2017, Seokheun Sean Choi :Journal
of Advanced Materials Technologies
 A.A. Yazdi :Journal of Power Sources,Jan 2017
 http://www.qrg.northwestern.edu/projects/vss/doc
s/power/2-how-do-batteries-work.htmln
 www.fespa.com/news/blogs/laurel.../photosynthesi
s-bio batteries.html
 www.studymafia.org
References

24. THANK YOU ALL & HAVE A