Open AccessMnO 2 –graphene nanosheets wrapped mesoporous carbon/sulfur composite for lithium–sulfur batteries
Author(s) -
Zhengzheng Li
Publication year - 2018
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.171824
Subject(s) - graphene , materials science , cathode , composite number , sulfur , mesoporous material , lithium (medication) , carbon fibers , chemical engineering , electron transfer , redox , inorganic chemistry , nanotechnology , composite material , chemistry , organic chemistry , catalysis , medicine , endocrinology , engineering , metallurgy
MnO 2 –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.