TY - JOUR
T1 - A high-energy-density and long-stable-performance zinc-air fuel cell system
AU - Pei, Pucheng
AU - Huang, Shangwei
AU - Chen, Dongfang
AU - Li, Yuehua
AU - Wu, Ziyao
AU - Ren, Peng
AU - Wang, Keliang
AU - Jia, Xiaoning
N1 - Publisher Copyright:
© 2019
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Metal-air fuel cells are regarded as potential alternatives of power supply due to their high specific energy. However, the excessive accumulation of reaction products leads to performance degradation, low energy density, and short service life, hampering more widespread application. This study focuses on enormously increasing the fuel cell system energy density by electrolyte isolation and management. Filters are used to isolate metal oxide (including ZnO, MgO, and Al2O3) from supersaturated electrolyte solutions in fuel cells. The filtration efficiency is close to 100%. The flow field is optimized to suppress the anode passivation. In zinc-air fuel cells (ZAFCs), the ratio of discharge capacity to electrolyte volume (electrolyte capacity) is up to 1025 Ah L−1, and the discharging voltage still remains stable. The zinc-air fuel cell system (ZAFCS) exhibits high energy density, high stability, and low cost, rendering this type of metal-air fuel cell a promising energy storage in electric vehicles.
AB - Metal-air fuel cells are regarded as potential alternatives of power supply due to their high specific energy. However, the excessive accumulation of reaction products leads to performance degradation, low energy density, and short service life, hampering more widespread application. This study focuses on enormously increasing the fuel cell system energy density by electrolyte isolation and management. Filters are used to isolate metal oxide (including ZnO, MgO, and Al2O3) from supersaturated electrolyte solutions in fuel cells. The filtration efficiency is close to 100%. The flow field is optimized to suppress the anode passivation. In zinc-air fuel cells (ZAFCs), the ratio of discharge capacity to electrolyte volume (electrolyte capacity) is up to 1025 Ah L−1, and the discharging voltage still remains stable. The zinc-air fuel cell system (ZAFCS) exhibits high energy density, high stability, and low cost, rendering this type of metal-air fuel cell a promising energy storage in electric vehicles.
KW - Electrolyte management
KW - Energy density
KW - Flow field
KW - Zinc-air fuel cell system
UR - http://www.scopus.com/inward/record.url?scp=85062604649&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2019.03.004
DO - 10.1016/j.apenergy.2019.03.004
M3 - Article
AN - SCOPUS:85062604649
SN - 0306-2619
VL - 241
SP - 124
EP - 129
JO - Applied Energy
JF - Applied Energy
ER -