Batteries

Primary

Zinc-Carbon  light drain

Zinc Chloride  light drain

Alkaline “long life”  light/heavy drain

Silver oxide  hearing aid, watches, etc

Zinc-Air  hearing aid

Lithium-Thionyl Chloride  computers, meters

  (long life: 10 yrs)

Nickel Oxyhydroxide  high current bursts

  (eg:digital cameras)

Paper nano tube

Rechargeable

Nickel-Cadmium (NiCad)  short use

Nickel Metal Hydride (NiMH)  high-tec stuff

Lithium-ion

Lithium-ion polymer

Lithium sulphur

Lead Acid  Cars / Vehicles

Issues

  Cycle number :  number of times it can be

  discharged and recharged

  Cycle time:  Length of time to decay, and

  to recharge

  Duty level:  can it supply a steady current

  for a long or short time?

  Operation Limits  Temperature max and min

  Air flow required?

Disposability  Ease of recyclability

  Dangerous chemicals

Weight  think car battery!