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Hybrid Aqueous Energy Storage Cells Using Activated Carbon and Lithium-Ion Intercalated Compounds.
- Source :
- Journal of The Electrochemical Society; 2008, Vol. 155 Issue 11, pA789-A793, 5p, 9 Graphs
- Publication Year :
- 2008
-
Abstract
- The polymer gel electrolyte using polyacrylamide and 1 M Li<subscript>2</subscript>SO<subscript>4</subscript> aqueous solution was prepared to study the applicability of polymer gel electrolyte to the activated carbon (AC)/lithium intercalated compound hybrid supercapacitors. The polymer gel electrolyte was found to have high conductivity, which even exceeded that of the 1 M Li<subscript>2</subscript>SO<subscript>4</subscript> aqueous solution counterpart, and wide stable potential window. A supercapacitor consisting of LiMn<subscript>2</subscript>O<subscript>4</subscript> positive and AC negative electrodes using the polymer gel electrolyte was assembled and its charge-discharge profile at various temperatures was investigated and compared to that of a similar hybrid supercapacitor based on Li<subscript>2</subscript>SO<subscript>4</subscript> aqueous solution electrolyte. Moreover, the effects of polymer gel electrolyte on the capacitance profile, rate capability, self-discharge rate, leakage current, and cycle ability of the hybrid supercapacitor were intensively investigated. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134651
- Volume :
- 155
- Issue :
- 11
- Database :
- Supplemental Index
- Journal :
- Journal of The Electrochemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 34997284
- Full Text :
- https://doi.org/10.1149/1.2969412