Patent ID: 9136549
Filing Date: 2015-09-15
Classification: H01M,Y02E

Abstract:
1. A cooling system for a fuel cell system, comprising a fuel cell cooling circuit for cooling the fuel cell system and having a first coolant, a battery cooling circuit for cooling a battery and having a second coolant, the second coolant being separate from the first coolant, and a valve provided between the fuel cell cooling circuit and the battery cooling circuit, wherein the first coolant flows through a coolant/coolant heat exchanger, and wherein the second coolant also flows through the coolant/coolant heat exchanger to facilitate heat exchange between the fuel cell cooling circuit and the battery cooling circuit within the coolant/coolant heat exchanger, and wherein the coolant/coolant heat exchanger is positioned in the battery cooling circuit and in series with the battery, and the valve is positioned outside of the battery cooling circuit such that the valve is operable to shut off the flow of the first coolant from the fuel cell cooling circuit to the coolant/coolant heat exchanger without affecting the flow of the second coolant through the coolant/coolant heat exchanger.