Bi2S3 for Aqueous Zn Ion Battery with Enhanced Cycle Stability

Abstract

is proposed as a promising cathode material for rechargeable aqueous Zn ion battery. • The Zn/Bi 2 S 3 battery shows a reversible capacity of 161 mAh g −1 at 0.2 A g −1 and good cyclic stability of up to 100 cycles with ca. 100% retention. • The storage mechanism in the Bi 2 S 3 cathode is related to the reversible Zn ion intercalation/extraction reactions and the capacitive contribution. ABSTRACT Aqueous Zn ion batteries (ZIBs) are promising in energy storage due to the low cost, high safety, and material abundance. The development of metal oxides as the cathode for ZIBs is limited by the strong electrostatic forces between O 2− and Zn 2+ which leads to poor cyclic stability. Herein, Bi 2 S 3 is proposed as a promising cathode material for rechargeable aqueous ZIBs. Improved cyclic stability and fast diffusion of Zn 2+ is observed. Also, the layered structure of Bi 2 S 3 with the weak van der Waals interaction between layers offers paths for diffusion and occupancy of Zn 2+. As a result, the Zn/Bi 2 S 3 battery delivers high capacity of 161 mAh g −1 at 0.2 A g −1 and good cycling stability up to 100 cycles with ca. 100% retention. The battery also demonstrates good cyclic performance of ca. 80.3% over 2000 cycles at 1 A g −1. The storage mechanism in the Bi 2 S 3 cathode is related to the reversible Zn ion intercalation/extraction reactions and the capacitive contribution. This work indicates that Bi 2 S 3 shows great potential as the cathode of ZIBs with good performance and stability.

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

“…To date, the most widely reported cathode materials are vanadium‐based materials, [ 26,27 ] manganese‐based materials, [ 28,29 ] Prussian blue analogues, [ 30,31 ] and, to a small extent, metal chalcogenides such as MoS 2 . [ 32–34 ] Among which, manganese‐based materials are highly favored for its highly matured synthesis techniques, low cost, and its wide range of polymorphs. While manganese‐based oxides have shown encouraging electrochemical performances in the reports, most of these materials still fall short from satisfactory electrochemical performance such as capacity, rate performance, and cyclic life.…”

Unraveling MoS2 and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

“…[6][7][8] As such, only a handful of the known materials, such as vanadium-based oxide, manganesebased oxide, and Prussian blue analogue, have successfully demonstrated excellent Zn 2+ storage ability. [9][10][11][12][13] This highly stringent material confinement within these few material families has greatly stifled the further development of functional ZIB cathode. Thus, it is of great desire to explore alternative viable materials that may offer new and exciting electrochemical properties to ZIB.…”

Rechargeable Aqueous Zinc‐Ion Batteries with Mild Electrolytes: A Comprehensive Review

“…Promising layered cathode candidates for batteries including also VS 2 , [43,97] VS 4 [98] and Bi 2 S 3 . [99] In 2017, An and Mai et al [43] first explored the Zn 2 + -storage behaviors of hydrothermally prepared 1T VS 2 nano-sheets (e. g., hexagonal metallic phase, interlayer spacing 0.576 nm [97] ), which achieved an impressive capacity of 190.3 mAh g À 1 in ZnSO 4 electrolyte, along with a long-term cycling stability. Furthermore, Zhi and Zhang et al [97] deposited hierarchical 1T VS 2 onto a stainless steel mesh, and developed a binder-free and freestanding cathode, VS 2 @SS.…”

“…[100] Furthermore, Xiong and Xue at al. [99] also proposed a Bi 2 S 3 cathode for ZIBs. The Bi 2 S 3 nano-particles were synthesized by a precipitation + low temperature process.…”