A new strategic approach to modify electrode and electrolyte for high performance Li–S battery

Pathak, Dipa Dutta; Mandal, Balaji P.; Tyagi, A. K.

doi:10.1016/j.jpowsour.2021.229456

Cited by 15 publications

(11 citation statements)

References 55 publications

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“…The peaks at 2.1 and 1.9 V correspond to discharging plateaus. The two peaks are ascribed to the reactions: S 8 + Li + + e – → Li 2 S n (4 ≤ n ≤ 8) and Li 2 S n + Li + + e – → Li 2 S + Li 2 S 2 . CV curves are displayed in Figure S5a, which exhibits a similar profile.…”

Section: Resultsmentioning

confidence: 85%

Novel Doughnutlike Graphene Quantum Dot-Decorated Composites for High-Performance Li–S Batteries Displaying Dual Immobilization Toward Polysulfides

Liu

Zhu

Shen

et al. 2021

ACS Appl. Energy Mater.

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Emerging materials for high-performance Li−S batteries are of great significance. Here, we develop a unique doughnutlike graphene quantum dot (GQD)/ Fe 2 O 3 @S@SnO 2 composite for Li−S batteries. The GQDs are confined inside the yolk− shell structure, which could shorten the pathway for electron and ion transport, enhancing the utilization of sulfur and achieving an energy-storage performance. Both the Fe 2 O 3 core and SnO 2 shell display strong binding with Li 2 S 4 , Li 2 S 6 , and Li 2 S 8 , which is verified by using density functional theory calculations. The doughnutlike GQD/Fe 2 O 3 @S@SnO 2 -based Li− S battery displays a capacity of 923 mAh g −1 after cycling 100 times, an ≈100% Coulombic efficiency, and a recoverable rate performance after repeated measurements. The constructed battery possesses a good tolerance at a high temperature of 45 °C. These findings would enable the doughnutlike yolk−shell design to be broadly applied for developing other emerging high-performance materials and their secondary batteries.

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Section: Resultsmentioning

confidence: 85%

Novel Doughnutlike Graphene Quantum Dot-Decorated Composites for High-Performance Li–S Batteries Displaying Dual Immobilization Toward Polysulfides

Liu

Zhu

Shen

et al. 2021

ACS Appl. Energy Mater.

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“…The LSB is one of the most promising LMB chemistries due to its low cost and high theoretical energy density, which is why it has attracted so much research interest. [ 103–110 ] However, LSBs are still plagued by several issues on both the anode and the cathode side, preventing them from being commercialized. Here, we highlight these issues affecting the anode and categorized the strategies that have been implemented to deal with the current challenges by listing the advantages and disadvantages of each strategy.…”

Section: Discussionmentioning

confidence: 99%

Recent Progress of Anode Protection in Li–S Batteries

2022

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Lithium-ion batteries have gradually reached their theoretical limits. To meet the growing demand for higher energy storage technology, finding alternative battery chemistries has become the major concern. Fortunately, lithium-sulfur batteries are considered the most promising next-generation energy storage technology due to being cost-effective and having high theoretical energy density. However, the further commercialization of lithium-sulfur batteries is hindered due to the growth of lithium dendrites and the shuttle effect of soluble lithium polysulfides. This review provides an overview of the challenges facing lithium-sulfur batteries. Furthermore, a comprehensive overview of lithium metal protection strategies is provided including electrolyte optimization, construction of artificial solid electrolyte layers, utilization of hosting materials, and design of separators, as well as a theoretical understanding and analysis of the underlying methods. This review puts forward general conclusions and prospects for the practical application of lithium-sulfur batteries in the future and the promotion of technology development of lithium metal batteries.

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“…For a clearer presentation of the cycling performance of the previously reported PPy‐based materials in the cathode of Li–S batteries, the initial capacity and the capacity retention ability of various PPy‐based materials using in different components (coating layer, sulfur host, precursor, and binder) of the cathode are comprehensively summarized in Figure and Table S1, Supporting Information. [ 45–47,82–124 ] The capacity retention is an important factor to evaluate the battery performance of CPs. As shown in Figure 3, PPy doped with superior conductive mediums (metal compound, MOF, etc) will deliver better capacity performance and stability than pure PPy, because of the greatly improved conductivity of PPy accelerating the electrons transfer.…”

Section: Polypyrrole (Ppy)mentioning

confidence: 99%

“…The initial capacity and capacity retention of the PPy‐based materials used for the cathode of Li–S batteries. [ 45–47,82–124 ] …”

Section: Polypyrrole (Ppy)mentioning

confidence: 99%

Conducting Polymers Meet Lithium–Sulfur Batteries: Progress, Challenges, and Perspectives

Chen

Zhao

Yang

et al. 2023

Energy & Environ Materials

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Lithium–sulfur (Li–S) batteries have attracted increased interest because of the high theoretical energy density, low cost, and environmental friendliness. Conducting polymers (CPs), as one of the most promising materials used in Li–S batteries, can not only facilitate electron transfer and buffer the large volumetric change of sulfur benefiting from their porous structure and excellent flexibility, but also enable stronger physical/chemical adsorption capacity toward polysulfides (LiPSs) when doped with abundant heteroatoms to promote the sulfur redox kinetics and achieve the high sulfur loading. This review firstly introduces the properties of various CPs including structural CPs (polypyrrole (PPy), polyaniline (PANi), polyethylene dioxothiophene [PEDOT]) and compound CPs (polyethylene oxide (PEO), polyvinyl alcohol (PVA) and poly(acrylic acid) [PAA]), and their application potential in Li–S batteries. Furthermore, the research progress of various CPs in different components (cathode, separator, and interlayer) of Li–S batteries is systematically summarized. Finally, the application perspective of the CPs in Li–S batteries as a potential guidance is comprehensively discussed.

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A new strategic approach to modify electrode and electrolyte for high performance Li–S battery

Cited by 15 publications

References 55 publications

Novel Doughnutlike Graphene Quantum Dot-Decorated Composites for High-Performance Li–S Batteries Displaying Dual Immobilization Toward Polysulfides

Novel Doughnutlike Graphene Quantum Dot-Decorated Composites for High-Performance Li–S Batteries Displaying Dual Immobilization Toward Polysulfides

Recent Progress of Anode Protection in Li–S Batteries

Conducting Polymers Meet Lithium–Sulfur Batteries: Progress, Challenges, and Perspectives

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