Multi-functional bilayer carbon structures with micrometer-level physical encapsulation as a flexible cathode host for high-performance lithium-sulfur batteries

Xie, Yonghui; Ao, Juan; Zhang, Li; Shao, Yeqing; Zhang, Hong; Cheng, Shuying; Wang, Xinghui

doi:10.1016/j.cej.2022.139017

Cited by 56 publications

(22 citation statements)

References 45 publications

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“…With the improvement of human production efficiency and the acceleration of the pace of life, the charging energy storage equipment is widely used in various industries, and human demand for the charging mobile energy storage equipment is getting higher and higher. − In the past few decades, lithium-ion batteries have become more and more popular because of their high safety performance, charging efficiency, and energy density. − However, due to the increasing demand for energy storage equipment, lithium–sulfur batteries (LSBs) with higher energy density and lower production cost have attracted wide attention. LSBs have many advantages, including high energy density (2600 Wh kg –1 ), wide operating temperature (−30 to 60 °C), and lower electrode material cost, but the disadvantages of LSBs are also obvious. − First of all, the electronic conductivity of sulfur is very poor (5 × 10 –30 S cm –1 ), which results in the low utilization rate and poor dynamic performance for the active material . Second, the volume expansion of sulfur in the process of charge and discharge is relatively large, which influences on the microstructure of the positive electrode .…”

Section: Introductionmentioning

confidence: 99%

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries

Liu

Jin

et al. 2023

ACS Appl. Nano Mater.

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In recent years, due to energy shortage and environmental pollution, lithium–sulfur batteries (LSBs) with low cost, high energy density, and environmentally friendly characteristic have attracted wide attention. However, the shuttle effect caused by lithium polysulfides (LiPSs) greatly reduces the cycle performance and life of LSBs. To solve this problem, we design an Fe3S4/rGO composite by the one-step hydrothermal method, which is used to modify the polypropylene (PP) separator. The Fe3S4/rGO composite has high electronic conductivity and adsorption performance, which provides channels for electron transfer and effectively inhibits the shuttle of LiPSs. The lithium–sulfur battery assembled with an Fe3S4/rGO-PP separator possesses the satisfactory specific capacities. The first discharge capacity reaches 1293 mAh g–1 at 0.2 C, and the discharge capacity maintains at 750 mAh g–1 after 100 cycles. After 300 cycles at 1 C, the discharge capacity is 578 mAh g–1, and the average capacity attenuation rate per cycle is 0.052%. These results indicate that the Fe3S4/rGO-PP separator would have a good application prospect for high-performance LSBs.

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Section: Introductionmentioning

confidence: 99%

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries

Liu

Jin

et al. 2023

ACS Appl. Nano Mater.

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“…VGs were prepared by a previously reported method via the plasma-enhanced chemical vapor deposition (PECVD) route (BEQ BTF-1200C-S-SL-PECVD) [ 20 ]. A stainless steel (SS) substrate was selected for deposition in a PECVD chamber.…”

Section: Methodsmentioning

confidence: 99%

All-Solid-State Thin-Film Lithium-Sulfur Batteries

Deng

Xie

et al. 2023

Nano-Micro Lett.

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Lithium-sulfur (Li–S) system coupled with thin-film solid electrolyte as a novel high-energy micro-battery has enormous potential for complementing embedded energy harvesters to enable the autonomy of the Internet of Things microdevice. However, the volatility in high vacuum and intrinsic sluggish kinetics of S hinder researchers from empirically integrating it into all-solid-state thin-film batteries, leading to inexperience in fabricating all-solid-state thin-film Li–S batteries (TFLSBs). Herein, for the first time, TFLSBs have been successfully constructed by stacking vertical graphene nanosheets-Li2S (VGs-Li2S) composite thin-film cathode, lithium-phosphorous-oxynitride (LiPON) thin-film solid electrolyte, and Li metal anode. Fundamentally eliminating Li-polysulfide shuttle effect and maintaining a stable VGs-Li2S/LiPON interface upon prolonged cycles have been well identified by employing the solid-state Li–S system with an “unlimited Li” reservoir, which exhibits excellent long-term cycling stability with a capacity retention of 81% for 3,000 cycles, and an exceptional high temperature tolerance up to 60 °C. More impressively, VGs-Li2S-based TFLSBs with evaporated-Li thin-film anode also demonstrate outstanding cycling performance over 500 cycles with a high Coulombic efficiency of 99.71%. Collectively, this study presents a new development strategy for secure and high-performance rechargeable all-solid-state thin-film batteries.

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“…In this respect, it is highly urgent to construct a universal strategy that can address the problems of Zn-based anodes and MnO 2 -based cathodes simultaneously. It has been reported that a vertical graphene (VG) film with high conductivity, a larger specific surface area, and a porous structure could facilitate the electron transport, shorten the ion transport distance, and provide a void space to buffer the volume changes for high-performance metal ion batteries. − …”

Section: Introductionmentioning

confidence: 99%

Vertical Graphene Film Enables High-Performance Quasi-Solid-State Planar Zinc-Ion Microbatteries

Zhou

Xie

et al. 2023

ACS Appl. Mater. Interfaces

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With the advantages of low cost, high safety, and environmental friendliness, quasi-solid-state zinc-ion microbatteries (ZIMBs) have received widespread attention in the field of flexible wearable devices and on-chip integratable energy storage. However, hysteresis Zn-ion transport kinetics and inhomogeneous growth of the zinc anode result in the poor capacity reversibility and cycling stability. Herein, a quasi-solid-state planar zinc-ion cell was developed by employing a vertical graphene (VG) film as an effective conductive modification layer for both the cathode and anode. The VG distinctly induces uniform Zn deposition/stripping, accelerates the charge transport, and enhances the adhesion between the active materials and current collectors. As a result, planar Zn@VG//MnO 2 @VG exhibits a high areal capacity of 159 μAh cm −2 , a remarkably high areal energy/power density of 201.5 μWh cm −2 /67.16 μW cm −2 , and a high capacity retention of 95.6% at a bending angle of 180°. The proposed facile strategy for electrode modification provides a new insight into the design of high-performance flexible and planar ZIMBs.

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Multi-functional bilayer carbon structures with micrometer-level physical encapsulation as a flexible cathode host for high-performance lithium-sulfur batteries

Cited by 56 publications

References 45 publications

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries

All-Solid-State Thin-Film Lithium-Sulfur Batteries

Vertical Graphene Film Enables High-Performance Quasi-Solid-State Planar Zinc-Ion Microbatteries

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Multi-functional bilayer carbon structures with micrometer-level physical encapsulation as a flexible cathode host for high-performance lithium-sulfur batteries

Cited by 56 publications

References 45 publications

Functional Separator Modified with Reduced Graphene Oxide and Fe3S4 for High-Performance Lithium–Sulfur Batteries

Functional Separator Modified with Reduced Graphene Oxide and Fe3S4 for High-Performance Lithium–Sulfur Batteries

All-Solid-State Thin-Film Lithium-Sulfur Batteries

Vertical Graphene Film Enables High-Performance Quasi-Solid-State Planar Zinc-Ion Microbatteries

Contact Info

Product

Resources

About

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries

Functional Separator Modified with Reduced Graphene Oxide and Fe₃S₄ for High-Performance Lithium–Sulfur Batteries