U.S. patent application 20180219237 (applicant Ford Motor Co., Dearborn, Mich.)
"A fuel cell system including a fuel cell stack, a coolant loop and a thermal battery. The coolant loop is configured to flow a coolant liquid therethrough. The thermal battery includes a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid and to latently store the heat during a first mode of operation the fuel cell system."
• Vehicle occupant cooling system (applicant Toyota Motor Engineering & Manufacturing North America Inc., Erlanger, Kentucky)