固体氧化物电池空气电极铬中毒机理及抗铬性能研究进展
Mechanisms of chromium poisoning in solid oxide cell air electrodes and research advances in enhancing chromium-resistivity
王天闻 1闫肃 1赵梦园 1杨天让 1刘建国1
作者信息
- 1. 华北电力大学能源电力创新研究院,新型储能技术北京实验室,北京 102206
- 折叠
摘要
固体氧化物电池(SOC)具有能源利用率高、污染排放量低、燃料灵活性高等优势,将在未来的能源供应和储存中发挥关键作用.当前,其长期稳定性尚不能满足大规模商业化的需求,电池堆中用于串联电池的金属连接体所导致的空气电极"铬中毒"是电堆性能衰减的重要因素之一.传统空气电极在发电模式(SOFC)下的铬中毒机理已较为明晰.然而,随着电解模式(SOEC)下应用的不断攀升,基于传统电极材料的毒化机理不适用于该运行模式下的电极体系.对典型空气电极材料在SOFC模式和SOEC模式下铬中毒机理进行对比分析,并且对提高SOC空气电极抗铬性能的研究进行总结和展望.
Abstract
Solid oxide cells(SOCs)have advantages of high energy utilization,low pollution emissions,and high fuel flexibility,and will play a key role in future energy supply and storage.At present,the main bottleneck restricting the large-scale commercial application of SOC is the long-term stability that needs to be improved.The chromium poisoning of SOC air electrode caused by the metallic interconnect used for serial connection of cells is one of the key issues.The chromium poisoning mechanism in traditional air electrodes operating in power generation mode(SOFC)is relatively well understood.However,with the increasing application demand of SOC in electrolytic mode(SOEC),the mechanism of chromium poisoning in SOEC mode needs to be explored urgently.In this paper,the mechanisms of chromium poisoning for typical SOC air electrodes in both SOFC and SOEC mode are reviewed.Additionally,it summarizes and prospects the research on improving the resistance of SOC air electrodes to chromium poisoning.
关键词
燃料电池/电化学/电解/催化剂/固体氧化物电池/空气电极/铬中毒/抗铬性能Key words
fuel cell/electrochemistry/electrolysis/catalyst/solid oxide cells/air electrode/chromium poisoning/chromium-resistivity引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据