Enhanced Lithium‐Ion Storage Capability of a Bismuth Sulfide/Graphene Oxide/Poly(3,4‐ethylenedioxythiophene) Composite

Abstract

A Bi2 S3 /graphene oxide (GO) composite enwrapped by a poly(3,4-ethylenedioxythiophene) (PEDOT) coating was prepared for the first time for use as an anode in Li-ion batteries. Pristine Bi2 S3 nanoflowers and composites of Bi2 S3 /GO and Bi2 S3 /GO/PEDOT were assembled into half cells with Li metal as the counter electrode, and initial discharge capacities of 833, 1020, and 1300 mAh g(-1) , respectively, were obtained. Composites of Bi2 S3 /GO/PEDOT and Bi2 S3 /GO showed superior cycling stability and better rate capability than pristine Bi2 S3 . GO provides highly conducting interconnections, which allow facile propagation of electrons during charge/discharge, and this improves the ion-uptake capability of the Bi2 S3 nanoflowers and also increases the rate capability. PEDOT furnishes a protective coating that prevents detachment of the material from the current collector during cycling, and it also imparts better cycling stability to the Bi2 S3 /GO/PEDOT composite.

Towards sustainable solid-state supercapacitors: electroactive conducting polymers combined with biohydrogels

“…Unfortunately, in this case the BET analysis was not a feasible technique because of the limitations in the mass of PEDOT produced by the electrochemical synthetic route. Indeed, it is worth noting that the amount of works specifying quantitatively the surface area and porosity is relatively scarce [46][47][48][49][50] probably due to the limitations of the BET test. Thus, the morphology of PEDOT electrodes for energy storage applications is frequently described qualitatively by examining SEM micrographs, especially when the polymer is generated by anodic polymerization.…”

“…However, the scarce number of publications reporting this parameter obliges to take it under consideration. Mukkabla et al 50 have also reported the design of Bi 2 S 3 /GO composites enwrapped by a PEDOT coating as the anode in Li-ion batteries, Bi 2 S 3 /GO/PEDOT composite lms being prepared by chemical polymerization. The BET specic surface areas of pristine Bi 2 S 3 , Bi 2 S 3 /GO and Bi 2 S 3 /GO/PEDOT were 12 , 51 and 46 m 2 g À1 , respectively, while the pore volumes were 0.008, 0.034, and 0.035 cm 3 g À1 , respectively.…”

Insights into Enhancing Electrochemical Performance of Li-Ion Battery Anodes via Polymer Coating

“…A polymer coating also improves the electrochemical performance of the uncommon anodes on the anode particles, such as Bi 2 S 3 by PEDOT [192], NiO by PANi [47], hard carbons by double coating with poly(dimethyldiallylammonium chloride) and poly(sodiump-styrenesulfonate) for high rate anodes [60], aluminum by poly(ethylene oxide) [63], phosphorus anode by PPy [193], 3D porous conductive framework by hyperbranched polyol [194], and Sb 2 S 3 by PPy [195].…”

P-doped porous carbon derived from walnut shell for zinc ion hybrid capacitors

“…Lithium-ion batteries have achieved great success since their commercialization and are widely used in various electronic products. [15][16][17] Lithium ion batteries have a wide application prospect, attributed to their high energy density and wide working potential window. 18 They have many shortcomings, such as a low power density, limited lithium resources, environmental pollution, poor cycle stability, and safety.…”