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MnO2-graphene nanosheets wrapped mesoporous carbon/sulfur composite for lithium-sulfur batteries.

ABSTRACT: MnO2-graphene nanosheets wrapped mesoporous carbon/sulfur (MGN@MC/S) composite is successfully synthesized derived from metal-organic frameworks and investigated as cathode for lithium-ion batteries. Used as cathode, MGN@MC/S composite possesses electronic conductivity network for redox electron transfer and strong chemical bonding to lithium polysulfides, which enables low capacity loss to be achieved. MGN@MC/S cathodes exhibit high reversible capacity of 1475?mA?h?g-1 at 0.1?C and an ultra-low capacity fading of 0.042% per cycle at 1?C over 450 cycles.

SUBMITTER: Li Z 

PROVIDER: S-EPMC5830778 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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MnO<sub>2</sub>-graphene nanosheets wrapped mesoporous carbon/sulfur composite for lithium-sulfur batteries.

Li Zhengzheng Z  

Royal Society open science 20180207 2

MnO<sub>2</sub>-graphene nanosheets wrapped mesoporous carbon/sulfur (MGN@MC/S) composite is successfully synthesized derived from metal-organic frameworks and investigated as cathode for lithium-ion batteries. Used as cathode, MGN@MC/S composite possesses electronic conductivity network for redox electron transfer and strong chemical bonding to lithium polysulfides, which enables low capacity loss to be achieved. MGN@MC/S cathodes exhibit high reversible capacity of 1475 mA h g<sup>-1</sup> at  ...[more]

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