Polyurethane foam composition and use of same for potting products

A method of potting a battery comprising:

• (i) forming a reaction mixture by mixing a polyol component with an isocyanate component;
• wherein,
• (A) the polyol component, comprising one or more polyols selected from the group consisting of a polyester polyol, a polyether polyol, and the combination thereof, wherein the one or more polyols have an average hydroxyl group functionality of from 3 to 7 and an average hydroxyl group number of from 300 to 1000 mg KOH/g;
• and
• (B) the isocyanate component, comprising one or more isocyanate compounds;
• wherein in either or both of the (A) polyol component and the (B) isocyanate component, the polyurethane foam composition further comprises one or more flame retardants in an amount of no more than 15 percent by weight based on the total weight of the polyurethane foam composition, and, one or more blowing agents;
• and
• wherein the NCO/OH ratio of the isocyanate component to the polyol component is within the range of from 0.5:1 to 5:1,
• and
• (ii) injecting the reaction mixture into an enclosed space of the battery and allowing the reaction mixture to react, expand and cure.