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Promising Electric Aircraft Drive Systems - page 8 / 23

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Specific Density (kWh/m )

3

Battery Energy Storage

1000

800

Battery technologies in development have the potential for 10X increase in storage capacity over currently available Li-ion batteries

Li-Polymer Advanced Li-S Li-ion nano-Si

600

400

Li-S ~300 - ? cycles

200

Li-ion ~100-15,000 cycles

Ni-H2 50,000 cycles

0.2

0.4

0.6

0.8

1.0

Specific Energy (kWh/kg) Fuel-cell power-systems will require some battery storage to balance power demands

EAA Electric Aircraft World Symposium 2010: Michael Dudley

8

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