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A Hydrogen‐Insertion Asymmetric Supercapacitor
Author(s) -
Qu Deyang,
Smith Patricia,
Gourdin Gerald,
Jiang Thomas,
Tran Thanh
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201103046
Subject(s) - supercapacitor , mechanism (biology) , electrode , hydrogen , leakage (economics) , chemistry , computer science , computer network , information retrieval , materials science , physics , organic chemistry , capacitance , quantum mechanics , economics , macroeconomics
Souped up! A hydrogen‐insertion asymmetric supercapacitor is reported that couples a hydrogen‐atom‐insertion negative electrode and a double‐layer, activated‐carbon positive electrode (see figure). This unique asymmetric supercapacitor does not have an apparent capacity fading mechanism. There is an internal mechanism that prevents the accumulation of H 2 , and thus the possible leakage of H 2 , during overcharging conditions.