Sun Z, Sang XG, Song Y, Guo D, Feng DY, Sun X, Liu XX. A high performance tungsten bronze electrode in a mixed electrolyte and applications in supercapacitors.
Chem Commun (Camb) 2019;
55:14323-14326. [PMID:
31714544 DOI:
10.1039/c9cc06845g]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Na2SO4 + H2SO4 mixed electrolyte is demonstrated for a tungsten bronze pseudocapacitive electrode. The Na2SO4 supporting salt allows a large potential window while H+ effectively suppresses phase transformation. The electrode delivers a capacitance of 860 mF cm-2 with a -0.9 V-0 V window and 98% capacitance retention over 30 000 cycles.
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