Branch-structured Bi₂S₃–CNT hybrids with improved lithium storage capability

Abstract

A hierarchical, branched Bi2S3–CNT hybrid was fabricated through a facile sonochemical approach which exhibited outstanding Li-storage capability.

LiMn2O4 nanorod arrays: A potential three-dimensional cathode for lithium-ion microbatteries

“…The initial charge and discharge capacities of the LiMn 2 O 4 nanorod array electrode are 146 and 130 mAh g À1 , respectively, with a coulombic efficiency of about 89%. Moreover, the specific areal capacity for the LiMn 2 O 4 nanorod array cathode can reach about 0.25 mAh cm À2 , which is about 10 times larger than the values reported for the 2D LiMn 2 O 4 thin film cathodes [19]. After the first cycle, the coulombic efficiency quickly increases to nearly 100% with cycling (Fig.…”

Carbon coated flower like Bi 2 S 3 grown on nickel foam as binder-free electrodes for electrochemical hydrogen and Li-ion storage capacities

“…This retention is better than, or comparable to, other Bi 2 S 3 nanostructures previously reported. [15,19,20,27,28] The electrode produced using the flower like Bi 2 S 3 microcrystals on copper foil exhibited poorer cycling performance compared with Bi 2 S 3 @C/Ni electrode and Bi 2 S 3 /Ni electrode. The discharge capacities of the electrode decreased sharply from 875 to 94 mAh g À1 by the 50th cycle at a constant current density of 100 mA g À1 , and the capacity retention was only 11%.…”

“…[18] Ni's research group reported that bismuth sulfide-carbon nanotube hybrid exhibited a high reversible capacity and remarkable rate capability. [19,20] These Bi 2 S 3 / carbon hybrids could enhance electronic conductivity and provide flexible space for suppressing the large volume expansion during cycling. Although different nanostructured Bi 2 S 3 and Bi 2 S 3 /carbon hybrids have been fabricated and the electrochemical properties have been investigated, there is still much room for progress with regard to the development of Bi 2 S 3 for energy storage.…”

Chemical fabrication and electrochemical performance of Bi2S3-nanorods charged reduced graphene oxide

“…Several contributions have devoted to the metal chalcogenides/carbon composites with good electrochemical performance for anode materials of Li-ion batteries, such as CoS/graphene [6], Bi 2 S 3 /CNT [7] and SnS 2 /reduced graphene oxide (RGO) [8]. Among these metal chalcogenides, Bi 2 S 3 has been of particular interest due to its application in Li-ion batteries [9].…”