About: nickel-hydrogen battery

Premodifier: nickel-hydrogen
Head noun: battery

Same concepts
http://dbpedia.org/resource/Nickel–hydrogen_battery

Broader concepts

label	provenance	confidence
secondary battery	isap:437261975	0.822395
battery	isap:437262104	0.506079

Narrower concepts

label	provenance	confidence
battery	isap:437262106	0.249287