DESIGN AND CONSTRUCTION A LITHIUM BATTERY CHARGER
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TITLE PAGE
DESIGN AND CONSTRUCTION A LITHIUM BATTERY CHARGER
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "design and construction a lithium battery charger" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
PROJECT DESCRIPTION: This work "design and construction a lithium battery charger" research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of "design and construction a lithium battery charger" visible for everyone, then the complete material on "design and construction a lithium battery charger" is to be ordered for. Happy viewing!!!
This work is on a lithium battery charger which is designed to charge lithium batteries and other portable devices. This charger gives constant current and constant voltage for charging battery and also the voltage range and current value can be changed depending on the voltage of the battery under charge. It has an automatic charging feature which proceeds charging automatically when the battery voltage goes below the set value, and when the battery is fully charged it will shut off
The objective of this project is to design and construct an electronic device that will supply electrical energy (charges) to lithium batteries.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRCT
TABLE OF CONTENT
- INTRODUCTION
- BACKGROUND OF THE PROJECT
- PROBLEM STATEMENT
- AIM/OBJECTIVE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- APPLICATION OF THE PROJECT
- LIMITATION OF THE PROJECT
- SCOPE OF THE PROJECT
- PROJECT ORGANISATION
LITERATURE REVIEW
2.1 OVERVIEW OF LITHIUM BATTERIES
2.2 HISTORICAL BACKGROUND OF LITHIUM BATTERY CHARGER
2.3 REVIEW OF DIFFERENT TYPES OF BATTERY CHARGERS
3.0 CONSTRUCTION METHODOLOGY
3.1 INTRODUCTION
3.2 BLOCK DIAGRAM OF THE SYSTEM
3.3 CIRCUIT DIAGRAM
3.4 CIRCUIT DESCRIPTION
3.5 SYSTEM OPERATION
3.6 DESCRIPTION OF MAJOR COMPONENTS USED
RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING
4.2 CASING AND PACKAGING
4.3 ASSEMBLING OF SECTIONS
4.4 TESTING OF SYSTEM OPERATIONOBSERVATIONS
4.6 DIFFICULTIES ENCOUNTERED ON THE SYSTEM
4.7 COST OF PRODUCTION
- SUMAMRY
- CONCLUSIONS/SUGGESTIONS
5.3 REFERENCES
CHAPTER ONE
1.0 INTRUDUCTION
1.1 BACKGROUND OF THE PROJECT
A lithium-ion battery or Li-ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge, and back when charging. Li-ion batteries use an intercalated lithium compound as the material at the positive electrode and typically graphite at the negative electrode.
Li-ion batteries have a high energy density, no memory effect and low self-discharge. Cells can be manufactured to either prioritize energy or power density (Lain et al. 2019). They can however be a safety hazard since they contain flammable electrolytes, and if damaged or incorrectly charged can lead to explosions and fires. Samsung was forced to recall Galaxy Note 7 handsets following lithium-ion fires (Kwon et al, 2016) and there have been several incidents involving batteries on Boeing 787s.
A prototype Li-ion battery was developed by Akira Yoshino in 1985, based on earlier research by John Goodenough, M. Stanley Whittingham, Rachid Yazami and Koichi Mizushima during the 1970s–1980s, and then a commercial Li-ion battery was developed by a Sony and Asahi Kasei team led by Yoshio Nishi in 1991.[Ballon et al, 2008]
Lithium-ion batteries are commonly used for portable electronics and electric vehicles and are growing in popularity for military and aerospace applications [Ballon et al, 2008].
This work is aimed at building an automatic charger for “lithium-ion battery”.
1.2 PROBLEM STATEMENT
In the last decade battery charger built then only charge and keep charging the battery even when the battery is fully charged, and this exposes the battery to overcharge and explosion, this can also cause a lot of headaches and prevent us from getting the life expectancy out of the batteries we purchase. To solve this problem, an auto-turn of charger was built. A battery will never get overcharged with an Auto turn off battery charger.
1.3 AIM AND OBJECTIVES OF THE PROJECT
Depending on the design and chemical compounds used, lithium cells can produce voltages from 1.5 V to about 3.7 V. the main aim of this work is to build an automatic charger for lithium batteries. The objectives are:
- To build a low cost lithium battery charger.
- To protect the charger from overcharge
- To have a good charging system for mobile devices.
1.4 SIGNIFICANCE OF THE PROJECT
Working on this topic will expose us to all the benefit of building charger for mobile devices that contain lithium batteries. This charger provides the full life expectancy out of the batteries we purchase.
ii. Easy to use.
iii. Simple circuit.
iv. components are easily available and low cost.
v. User friendly product.
1.5 APPLICATIONS OF THE PROJECT
This battery charger with little modifications can charge any battery ranging from 0 to 15V. Some of the applications are:
- Rechargeable Cells
- Motorcycle Batteries
- Mobile phone charger and other mobile devices
1.6 LIMITATION OF THE PROJECT
The charger has adjustable voltage function that makes it compactable with different lithium batteries.
1.7 SCOPE OF THE PROJECT
The scope of the project covers building a charger that charges lithium cells and also automatically shut off the charging process when battery attains full charge. This prevents the deep charge of the battery. If the battery voltage is below the set value, then circuit automatically charges the battery.
1.8 METHODOLOGY
To achieve the aim and objectives of this work, the following are the steps involved:
- Study of the previous work on the project so as to improve it efficiency.
- Draw a block diagram.
- Test for continuity of components and devices,
- Design and calculation for the device was carried out.
- Studying of various component used in circuit.
- Construction of the circuit was carried out.
- Finally, the whole device was cased and final test was carried out.
1.8 PROJECT ORGANISATION
The work is organized as follows: chapter one discuses the introductory part of the work, chapter two presents the literature review of the study, chapter three describes the methods applied, chapter four discusses the results of the work, chapter five summarizes the research outcomes and the recommendations.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction a lithium battery charger" is also available. Order full work to download. Chapter two of "design and construction a lithium battery charger" consists of the literature review. In this chapter all the related work on "design and construction a lithium battery charger" was reviewed.
CHAPTER THREE: The complete chapter three of "design and construction a lithium battery charger" is available. Order full work to download. Chapter three of "design and construction a lithium battery charger" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "design and construction a lithium battery charger" is available. Order full work to download. Chapter four of "design and construction a lithium battery charger" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a "design and construction a lithium battery charger" is available. Order full work to download. Chapter five of "design and construction a lithium battery charger" consist of conclusion, recommendation and references.
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