Encyclopedia of Environmental Science and Engineering, Volume I and II

708 MOBILE SOURCE POLLUTION

SPECIFIC ENERGY USABC long-term goal

USABC midterm goal

Watthours per kilogram

Sodium-

nickel

chloride

Sodium-

sulfur

Lithium-

ion

Nickel-

metal

hydride

Nickel-

cadmium

Lead-acid

1998

1996

1998

2001

2001

1998

1998

2004

1996

250

200

150

100

50

0

PEAK SPECIFIC POWER

USABC long-term goal

USABC midterm goal

Sodium-

nickel

chloride

Sodium-

sulfur

Lithium-

ion

Nickel-

metal

hydride

Nickel-

cadmium

Lead-acid

500

400

300

200

100

0

1998

2004

2004

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