1. B Y : C O R E Y D A Y Batteries in Electric Vehicles
2. History of the Electric Vehicle Electric vehicle batteries
debuted in the United States in 1890 thanks to William Morrison, a
chemist who lived in Des Moines, Iowa. Capable of going 14 MPH Very
popular when released due to the fact that it was quiet, did not
emit exhaust odor and they didnt have to crank the vehicle to
start.
3. History of the Electric vehicle (Cont.) The electric vehicle
soon became almost extinct due to the fact that Henry Ford released
the model T in 1908 which became mass produced and cost around $650
compared to the electric vehicle for $1750 Finally, in 1990 the
Clean Air Act and in 1992 the Energy Policy Act were passed forcing
the electric vehicle back into consideration by automakers.
4. History (Cont.) One of the most popular electric vehicles in
this era was the GM EV-1, it was capable of 0-50 in seven seconds
but the cost of production was extremely high to make, it
discontinued before commercially ready in 2001 Released in Japan in
1997, the Prius became the worlds first mass-produced hybrid
electric vehicle. In 2000, the Prius was released worldwide, and it
became an instant success. Using Nickel-Metal Hydride battery
5. Charging Stations and Vehicles
6. Battery Types Lead Acid Advanced Lead Acid Nickel-Cadmium
Nickel-Metal-Hydride Lithium Ion Lithium Polymer Zinc or Aluminum
Air Sodium Sulfur Sodium Metal Chloride
7. Battery Parameters Energy Density -is the amount of energy
stored in a given system or region of space per unit volume or
mass. Power Density- Is the amount of power (time rate of energy
transfer) per unit volume. Discharge Rate- a battery rated at
1000mAh provides 1000mA for one hour if discharged at 1C rate.
State of Charge- is the equivalent of a fuel gauge for the battery
pack in a battery electric vehicle State of Discharge- another way
of saying Sate of Charge. Battery level. C Rates- Used for
determining Discharge rate. Watt Hours- is a unit of energy
equivalent to one watt (1 W) of power expended for one hour (1 h)
of time.
8. Series Battery Configuration Batteries hooked in series will
add the voltage but amperage stays the same.
9. Parallel Battery Configuration Voltage stays the same,
amperage increases.
10. Series and parallel Configuration The amperage and voltage
are added together Electric vehicle method
11. Lead Acid Typical everyday battery .Used in gasoline cars,
lawn mowers etc. Very poor performance when used in electric
vehicles, out dated. Full charge last 40-60 miles. Used in GMs
EV-1
12. Advanced Lead Acid Corrosion free Little maintenance These
batteries are composed of absorbent glass mats that are placed
between the plates which absorb electrodes and sulfuric acid.
Examples: Optima, AGM, VRLA
13. Nickel-Cadmium Memory issues- learning process once a month
Low energy density High discharge rate Toxic metals not allowed in
some countries.
14. Nickel Metal Hydride 30-50% more capacity then
Nickel-Cadmium 40% better energy density Used in 2nd gen EV-1
Discharge rate of 1-3% a day Learning process every 3 months
15. Lithium Ion Composed of a graphite mixture anode and a mix
of lithium and metals for the cathode Thermal issues and was
damaged if charged at temperatures below freezing Higher cost
Energy density is double nickel cadmium Self discharge rate is very
minimal
16. Lithium Ion Coblat Used in laptops, cell phones and
cameras. Cathode is composed of cobalt oxide while the anode is
made up of graphite carbon. Large increase of internal resistance
with continuous discharge and charging. 2-3 years the pack is
normally unserviceable.
17. Lithium Ion Manganese Lithium manganese oxide is used as
the cathode a three-dimensional spinal structure that improves the
ion flow between the electrodes. High ion flow lowers the internal
resistance and increases loading capability
18. Lithium Polymer Most efficient Power and energy of any
battery chemistry discovered Made into shapes Withstand high temps
30% more expensive than other lithium designs
19. Research Stages Metal Air Batteries Nickel Zinc
20. Metal Air Batteries Zinc air, Aluminum air, Iron air Cannot
be plugged in to recharge The battery must be replaced when the
metal is used up. Not hazardous to the environment Improvements are
still being made/tested.
21. Nickel Zinc High specific power and energy Deep cycle
capable Environmental friendly Low cost
22. Specific Energy
23. Lithium Chemistry
24. Summary There are many different batteries in the world
today, but they all have weaknesses. I believe that the lithium
polymer battery is the best design we currently have in production
today. Its flexibility with shape and the high energy and power
density make lithium polymer a very beneficial battery to the
electric vehicle market. Overall, the electric vehicle will
continue to become more and more popular as research and testing
continues to show that batteries are becoming an ideal source of
power for transportation.