Piezoelectric energy recovery fuel cell system

• Main Authors: SONG TINGTING, LUO RUOYIN, WANG XINGXIAN, LIU YONG, DU WEI, DENG CHENGWEI
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a piezoelectric energy recovery fuel cell system which comprises a fuel cell stack, a hydrogen subsystem, an air subsystem, a cooling subsystem, a piezoelectric device and a storage battery, and a plurality of sensors are arranged in the hydrogen subsystem, the air subsystem and the cooling subsystem; wherein the hydrogen subsystem comprises a first gas inlet passage which is used for providing hydrogen to enter the fuel cell stack; the first gas outlet passage is used for outputting unreacted hydrogen in the fuel cell stack, and a first tail exhaust valve is arranged on the first gas outlet passage and is used for intermittently discharging hydrogen; the piezoelectric device is connected with the first air outlet passage through a pipeline, the joint is located near the upstream of the first tail exhaust valve, and the piezoelectric device converts pressure energy of pipeline periodic fluctuation caused by intermittent work of the first tail exhaust valve into electric energy and stor