Journal
RSC ADVANCES
Volume 5, Issue 26, Pages 20346-20350Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra14945a
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Funding
- Natural Science Foundation of China (NSFC) [51402330, 51201177]
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A selenium@polypyrrole hollow sphere composite cathode delivers a reversible specific discharge capacity of 400 mA h g(-1) after 80 cycles and a 60% reduction in impedance of the cycled cells is obtained. The soluble polyselenide species are demonstrated to be confined by PPy hollow spheres, thus inhibiting the shuttle effect to a large extent.
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