Electron microscopy
 
Comparison between Different Batteries
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Figure 1784a shows the comparisons of energy densities and power densities of various batteries. The lithium (Li) ion batteries have the highest energy density and power density of any cells.

Comparisons of energy densities and power densities of various batteries Comparisons of energy densities and power densities of various batteries
(a)
(b) [1]
Figure 1784. Comparisons of energy densities and power densities of various batteries.

Table 1784. Properties of commercial batteries.

Battery type Lithium-ion Lead acid Ni-Cd Ni-MH*
Energy density (Wh/kg) 120 35 40-60 60
Power density (W/kg) 1,800 180 150 250-1,000
Cycle life 3,500 4,500 2,000 2,000
Cost (US$/kWh) Electronics:
300-800
Vehicles:
1,000-2,000
269 280 500-1,000
Battery characteristics Small size, light weight High reliability, low cost Memory effect Currently, best value
and most popular
battery for HEVs**
Applications Consumer electronics Car battery, forklift, golf cart, backup power Replacement for flashlight battery HEVs, replacement for flashlight battery
* Ni-MH Nickel Metal Hydride.
** HEV: hybrid electrics vehicles.

 

 

 

 

[1] Ikoma, 2006.

 

 

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