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Design Team Ten
Final Presentation
ECE 480 FS08
Objective
To design and develop a
battery-supercapacitor
hybrid system
Team 10
KELD, LLC
 1kW
Pulse Load for 18sec every 2minutes
 Lithium Ion battery
 Supercapacitor
Team 10
KELD, LLC






Design a battery to provide the average power to the load
for at least 20 minutes.
Design a supercapacitor to provide the pulse power to the
load.
Design and build a hybrid structure (or circuit
configuration) of the battery and supercapacitor to provide
needed power to the load.
Design and build a programmable load to simulate the
pulsating load.
Test and demonstrate the hybrid energy storage system to
prove that the constant power is from the battery and the
pulse power of the load is from the supercapacitor.
Provide final report and suggestions to improve/optimize
the system
KELD, LLC
 Constructed
Battery Pack
14 Cell
• Lithium Polymer
• 3.7 Volts per Cell
• Program Control Module
 Obtained
a 165F
Supercapacitor
• Max Voltage: 48V
 Obtained
4 Millennium3
relays
 Obtained 2 Heat Sinks
Team 10
KELD, LLC
 Constructed
Battery-SuperCapacitor
Hybrid System
 Tested the system
Team 10
KELD, LLC
 Design
more robust battery pack
 Attach a movable load
 Better container
 Better relays
 Circuit Protection
Team 10
KELD, LLC
 Add
Sensors
 Voltage/Current Display
 Automobiles
 Cell phones
 Computers
Team 10
KELD, LLC
Any Questions???
Team 10
KELD, LLC
Evolution of the
Battery/Supercapacitor Hybrid System
System 1
System 2
System 3
System 4
- 51.8 Volts
- 14 Li-Po Cells
- 1 PCM
- 51.8 Volts
- 51.8 Volts
- 51.8 Volts
- 85 Farads Total
- 5 x 165F Modules
- 56 Li-Po Cells
- 28 Li-Po Cells
- 3 Solid-State Relays
- 905 Farads Total
- 4 PCMs
- 2 PCMs
- 1 Digital Relay Controller
- 2 x 165 F Modules
10 Total
- 330Team
Farads
KELD, LLC
Comparing Systems System
System 1
Limitations:
- Excessive Weight
- High Cost
- Low Energy
Estimated Cost:
$9000
System 2
System 3
Limitations:
- Excessive Weight
- Low Power
- Limited Cycle Life
Estimated Cost:
Limitations:
- Relatively High Cost
- Performance Limited by
Voltage Dependency
Estimated Cost:
$5900
$7400
Team 10
System 4
KELD, LLC
Team 10
KELD, LLC