| abstract |
The present invention relates to a coolant composition used for cooling a fuel cell, in particular to a coolant composition used for cooling a fuel cell having low conductivity, anti-freeze properties, and excellent anti-corrosion properties for a metal, especially an aluminum based material, for use in the cooling system of fuel cell and, further, exhibiting no significant increase in conductivity even after long term use. The coolant composition according to the invention is characterized by comprising a base agent and an additive for sustaining low conductivity of the coolant composition, the anti-corrosive additive being such a substance as suppressing oxidation of the basic agent or blocking ions eluting into a cooling system to prevent conductivity of the coolant composition from increasing. |