Assertion: fuel cell | /r/HasProperty | classified by the type of electrolyte
Facets:
value: by the difference in startup time
type: OTHER
value: usually
type: TEMPORAL
Source sentences:
text: Fuel cells are classified by the type of electrolyte they use and by the difference in startup time ranging from 1 second for proton exchange membrane fuel cells (PEM fuel cells, or PEMFC) to 10 minutes for solid oxide fuel cells (SOFC).
text: Fuel cells are usually classified by their operating temperature and the type of electrolyte they use.
text: Fuel cells are classified by the type of electrolyte they use and by the difference in startup time, which ranges from 1 second for proton exchange membrane fuel cells (PEM fuel cells, or PEMFC) to 10 minutes for solid oxide fuel cells (SOFC).