Strategies towards High Performance Lithium‐Sulfur Batteries

Weret, Misganaw Adigo; Su, Wei‐Nien; Hwang, Bing‐Joe

doi:10.1002/batt.202200059

Cited by 40 publications

(33 citation statements)

References 266 publications

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“…In general, extensive studies showed that HSSEs have excellent compatibility with oxide‐based cathode materials. Nevertheless, fundamental interfacial stability and compatibility with materials other than oxide cathode materials, such as Li 2 S or sulfur‐type cathode materials, [ 162 ] need to be investigated experimentally and theoretically.…”

Section: Electrochemical Stability Of Hssementioning

confidence: 99%

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Nikodimos

Hwang

2022

Advanced Energy Materials

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used in many batteries. Traditional Li-ion batteries have reached a point of development bottleneck due to their safety issues of the flammable liquid electrolytes and low energy density. [1,2] To meet the goal of manufacturing electronic vehicles, scientists are working on batteries that have a higher energy density and are safer. [3,4] All-solid-state Li batteries (ASSLBs), which are made up completely of solid components, are a promising candidate for future energy storage generation with better safety, [5][6][7][8] and higher energy density. [9][10][11] Solid electrolytes with good overall characteristics are critical for ASSLBs to be realized. [12] Several attempts have been undertaken in recent decades to build solid electrolytes with good Li + conductivity, such as polymer solid electrolytes, [13][14][15][16][17][18] sulfide solid electrolytes, [19][20][21] oxide solid electrolytes, [22][23][24][25][26][27][28] anti-perovskites, [29][30][31] and lithium phosphorous oxynitrides. [32][33][34][35][36] Oxide-based solid electrolytes, such as garnet and NASICON-type, have good chemical stability with cathode materials but are brittle and have a poor contact surface with the cathode, [37] and we may need to use a liquid electrolyte to improve interface wettability. [37][38][39][40] Considering their high Li + conductivity and ductility sulfide solid electrolytes have been extensively explored among the numerous types of solid electrolytes. [41][42][43][44][45] Li 10 GeP 2 S 12 (LGPS), for example, has a high ionic conductivity of more than 10 mS cm −1 , which is almost equivalent to those of the conventional liquid electrolytes. [43] On the other hand, sulfide-based solid electrolytes have poor hydrolysis stability, chemical instability issues with electrodes, and a narrow electrochemical window (ECW). [46][47][48] Sulfides are not chemically or electrochemically compatible with typical 4 V cathode active materials, [49,50] because they are oxidized at a low potential (≈2.5 V vs Li + /Li). [51][52][53] To solve these problems, particles of cathode active materials must be coated with chemically compatible, an ionically conductive, and electrically insulating material, [54] which leads to a myriad of new challenges. In this regard, numerous researchers have used several oxides as potential coating materials, such as

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Section: Electrochemical Stability Of Hssementioning

confidence: 99%

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Nikodimos

Hwang

2022

Advanced Energy Materials

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“…Significant volume change of S during the cycling process also causes mechanical cracking and poor electrical connectivity with the conductive substrate and electrode . Moreover, the uncontrolled growth of dendrites due to the uneven deposition of Li + ions on the surface of Li anodes causes detrimental effects such as the evolution of dead Li and the formation of unstable solid–electrolyte interphase (SEI) layer, increased polarization, and safety concerns for the Li–S batteries. − Last, the shuttle effect caused by the dissolution of intermediate Li polysulfides in the electrolyte leads to irreversible S loss and, thus, a lower discharge capacity and Coulombic efficiency (CE). − …”

Section: Introductionmentioning

confidence: 99%

Sulfurized Polyacrylonitrile Impregnated Delignified Wood-Based 3D Carbon Framework for High-Performance Lithium–Sulfur Batteries

Sabet

Sapkota

Chiluwal

et al. 2023

ACS Sustainable Chem. Eng.

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Sulfurized polyacrylonitrile (SPAN) is a promising cathode active material capable of suppressing lithium polysulfide dissolution in lithium−sulfur (Li−S) batteries. However, due to the low S content in SPAN, achieving a high SPAN areal loading without compromising specific capacity and cycling stability would be required. To address this challenge, we took advantage of the inherent porous structure of natural wood and engineered carbonized delignified wood (CDW) frameworks using a delignification/low-temperature pyrolysis approach. The unique design of the SPAN-impregnated CDW (SPAN@CDW) electrode, wherein the interconnected pathways run in three dimensions, ensures effective electron and ion transport within the electrode. Biomass-derived SPAN@CDW cathodes exhibited an excellent rate capability compared to the popular synthetic 3D scaffolds, such as graphene foam cathodes, with discharge capacities >1000 mA h g s −1 at 1 C (1672 mA g −1 ). Electrodes with CDW pyrolyzed at 600 °C, and a S areal loading of ∼2 mg cm −2 exhibited a high specific capacity of ∼1350 mA h g s −1 after 500 cycles at 0.1 C, indicating good cycling stability. We also demonstrated the sustainable fabrication of SPAN@CDW electrodes with high SPAN loadings up to ∼35 mg cm −2 , which could deliver a high areal capacity of ∼15.1 mA h cm −2 at 0.1 C.

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“…Much attention has been paid to mitigating the shuttle effect of LiPSs, such as the construction of heterostructured materials in the cathode and the adoption of an advanced electrolyte. − Weret et al explored the mechanism of a sulfurized polyacrylonitrile compound cathode and deciphered polysulfide dissolution and the shuttling effect . Besides, the trithiocyanuric acid was introduced into polyacrylonitrile by an electrospinning technique and further treated by inverse vulcanization to increase the sulfur content in the sulfurized polyacrylonitrile .…”

Section: Introductionmentioning

confidence: 99%

Covalent Coupled Sulfur-Deficient MoS₂ Nanosheets on Carbon Nanotubes toward Polysulfide Catalytic Conversion in a Lithium Sulfur Battery

Yan

Zhu

et al. 2023

ACS Sustainable Chem. Eng.

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The lithium sulfur battery is an attractive energy storage device because of its high theoretical capacity and energy density, but its lifetime is seriously limited by the shuttle effect of polysulfides. Herein, a rational design of vertical MoS2 nanosheets anchored on conductive carbon nanotubes through Mo–O–C covalent coupling is proposed. In this composite, the strong chemical interaction ensures rapid charge transfer at interfaces, while the sulfur-deficient and metallic 1T phase-containing MoS2 enhances the affinity with polysulfides and accelerates the reaction kinetics of polysulfide conversion. Benefitting from these merits, the composite serves as a coating layer on the separator in the lithium sulfur battery, leading to the impressive electrochemical performance of the initial capacities of 1291 mA h g–1 at 0.5 C and 1330 mA h g–1 at 0.2 C. The battery also shows an enhanced cycling stability with a low capacity fading rate of 0.089% per cycle after 500 cycles at 0.5 C.

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Strategies towards High Performance Lithium‐Sulfur Batteries

Cited by 40 publications

References 266 publications

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Sulfurized Polyacrylonitrile Impregnated Delignified Wood-Based 3D Carbon Framework for High-Performance Lithium–Sulfur Batteries

Covalent Coupled Sulfur-Deficient MoS₂ Nanosheets on Carbon Nanotubes toward Polysulfide Catalytic Conversion in a Lithium Sulfur Battery

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Strategies towards High Performance Lithium‐Sulfur Batteries

Cited by 40 publications

References 266 publications

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Halide Solid‐State Electrolytes: Stability and Application for High Voltage All‐Solid‐State Li Batteries

Sulfurized Polyacrylonitrile Impregnated Delignified Wood-Based 3D Carbon Framework for High-Performance Lithium–Sulfur Batteries

Covalent Coupled Sulfur-Deficient MoS2 Nanosheets on Carbon Nanotubes toward Polysulfide Catalytic Conversion in a Lithium Sulfur Battery

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Covalent Coupled Sulfur-Deficient MoS₂ Nanosheets on Carbon Nanotubes toward Polysulfide Catalytic Conversion in a Lithium Sulfur Battery