Bismuth sulfide and its carbon nanocomposite for rechargeable lithium-ion batteries

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

“…The capacity loss between discharge and charge process may be attributed to the formation of SEI layer and the formation of conversion product of Li 2 S and alloying product of Li 3 Bi. [18,26] During the 2nd cycle, the electrode presents a discharge capacity of 840 mAh g À1 and a corresponding charge capacity of 737 mAh g À1 , resulting in the Coulombic efficiency of 87.7%. This value can be retained as 94% even after 50 cycles.…”

Facile Synthesis of Bi2S3@SiO2Core-Shell Microwires as High-Performance Anode Materials for Lithium-Ion Batteries

“…The peaks centered at 0.74 and 0.62 V correspond to the formation of LiBi and Li 3 Bi alloys. 20 In the first anodic process, there is a sharp peak at 0.95 V, which is ascribed to the dealloying of Li 3 Bi to Bi. The weak peaks at 2.13 and 2.36 V are attributed to the formation of Bi 2 S 3 .…”

“…15 According to the reaction mechanism proposed by Jung et al, the Li + storage of Bi 2 S 3 involves conversion (Bi 2 S 3 + 6 Li + + 6 e − ↔ 2 Bi + 3 Li 2 S) and alloying processes (Bi + 3 Li + + 3 e − ↔ Li 3 Bi). 20 The conversion step causes a volume expansion of 90%, the alloying results in a volume increase of 113%, and the total volume expansion is 164%. 19 Such a huge volume variation during charge-discharge process leads to severe pulverization of the Bi 2 S 3 , resulting in a rapid capacity fading.…”

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

“…Among these metal chalcogenides, Bi 2 S 3 has been of particular interest due to its application in Li-ion batteries [9]. Jung et al has studied the electrochemical performances of bismuth trisulfide (Bi 2 S 3 ) nanoparticles and Bi 2 S 3 /C nanocomposites prepared by high-energy mechanical milling (HEMM) for Li secondary batteries [10]. Besides HEMM method, various techniques have recently been utilized to prepare Bi 2 S 3 nanostructures, such as vapor deposition [11], hydrothermal/solvothermal synthesis [12], ultrasonic chemical method [13], electrochemical method [14] and microwave-assisted route [15].…”