Following is a summary of the energy density and charging characteristics of current battery technologies. For more details, see
solid state battery,
sodium-ion battery,
aluminum-ion battery,
lead acid,
nickel cadmium,
nickel metal hydride,
lithium-ion battery,
lithium polymer,
liquid metal battery,
zinc air,
CMOS battery,
aluminum-ion battery and
memory effect.
RECHARGEABLE BATTERIES
Energy Fast
Density Charge
Type (Wh/Kg)* (Min/Hrs)
Aluminum-Ion 600-1000 10M
Sodium-Ion 100-200 5-10M
Lithium-Ion 50-300 20M-1H
Solid State 250-500 5-18M
Nickel Cadmium 45-80 1H
Nickel Metal
Hydride 60-120 2-4H
Lithium
Polymer 100-130 2-4H
Lead Acid 30-50 8-16H
Reusable
Alkaline 80 2-3H
* Wh/Kg = watt hours per kilogram
A Ton of Batteries for One Minute
This roomful of lead acid batteries stands ready to drain itself entirely in less than a minute. It serves as interim power for a large datacenter between the time a power outage has been detected and the generators can come up to full speed.