An ultrathin surface-nitrided porous titanium sheet as a current collector-free sulfur host for high-gravimetric-capacity lithium-sulfur batteries.
Chem Commun (Camb)
; 55(11): 1655-1658, 2019 Jan 31.
Article
em En
| MEDLINE
| ID: mdl-30657486
ABSTRACT
A novel cathode structure consisting of ultrathin and freestanding surface-nitrided porous titanium (SNPT) sheets, was designed for high-gravimetric-capacity Li-S batteries. This unusual cathode combines the sulfur host and the current collector together, increasing the sulfur mass ratio by over 20% compared with routine cathodes, resulting in excellent cycling performance with an initial capacity of 1325 mA h g-1 and a coulombic efficiency of over 99% at 1.0C.
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MEDLINE
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En
Ano de publicação:
2019
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Article