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Hydrogen ion supercapacitor cell construction and rational design of cell structure
Author(s) -
Xie ZhiZhong,
Xu Caiyun,
Zhou Lina,
Liu Dan,
Chen Chenyang,
Tang Haolin,
Li Junsheng,
Li Xi,
Qu Deyu
Publication year - 2019
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4842
Subject(s) - supercapacitor , electrochemistry , electrode , materials science , palladium hydrogen electrode , hydrogen , composite number , hydrogen storage , half cell , chemical engineering , nanotechnology , reference electrode , inorganic chemistry , working electrode , composite material , chemistry , organic chemistry , engineering , alloy
Summary A hydrogen ion supercapacitor cell was constructed with an electrochemical double‐layer carbon material as positive electrode and an electrochemical hydrogen storage composite material as negative electrode. The electrochemical performances of both electrodes and hybrid device were investigated by varying of the mass ratio of positive and negative electrode. It was found to be that both electrodes went through the different hydrogen ion storage processes and the capacity of this hybrid supercapacitor was highly correlated with the negative to the positive electrode ratio. The highest capacity was achieved at ratio of 1:7; further increasing of this ratio may downgrade the performance of the hybrid system. With this optimized ratio, the hybrid device demonstrated good electrochemical performance.