A coolant composition for a fuel cell unit, which contains at least one aliphatic alcohol having unsaturated bonds in the molecules having 2 to 20 carbon atoms each. The coolant composition maintains the electrical conductivity of the coolant at 10 µS/cm ...

The present invention relates to a coolant used for cooling a fuel cell and in particular, a fuel cell for a vehicle, and the composition is characterized in using as a basic material one or more materials selected from a group consisting of secondary alco...