Comparison of successful Commercial Batteries
There are quite a few battery parameters & based on the different applications a battery is used for, certain parameters are more important than other parameters.
|Parameter||Lead Acid Battery||Lithium Ion Battery|| Nickel Metal (NiMH)|
| Nickel Cadmium |
Battery (Ni Cad)
|Cell Voltage||2.1 V||3.2 - 4.7 V||1.2 V||1.2 V|
| Energy Density|
|Life Cycles||200 - 500||500 - 1000||300 - 500||1500|
|Operating Temperatures||-20 ᴼC to 60 ᴼC||-40ᴼC to 70ᴼC||-20ᴼC to 60ᴼC||-40ᴼC to 60ᴼC|
|High Current Discharge||Good||Excellent||Good||Poor|
|Capacity at Different Rates||Ah** Capacity decreases with increasing discharge current||Ah Capacity is almost constant at all discharge rates||Ah Capacity is almost constant at all discharge rates||Ah Capacity decreases with increasing discharge current|
** Follows Peukert's equation
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All Batteries are electrochemical systems which function as a source of electrical Power and energy. Each system has 2 electrodes (Positive and Negative), electrolyte and separator. Most electrochemical systems have a metal oxide or oxygen itself as Positive and a metal as Negative. The systems can be further classified as Primary and secondary batteries.
During the end of charge all lead acid batteries produce hydrogen which is evolved by the breaking up of the electrolyte into hydrogen & oxygen. In sealed VRLA batteries either AGM batteries or Gel batteries, the gases are recombined inside the cell to form water.
What are the advantages and disadvantages of batteries? Advantages of Lead-acid battery: Well established technology. Many of the teething problems in any new technology have been resolved many decades ago. Robust and predictable battery technology as at present Over the years, lead-acid battery technology has evolved very significantly, albeit at a slow rate. Starting from