A dual-faced interlayer prepared by electron beam evaporation for enhanced-performance lithium–sulfur batteries

Tang, Qiong; Li, Heqin; Zhang, Jing; Lin, Zhiwei; Hu, Qingzhuo; You, Yu-Wei; Ye, Yangwei

doi:10.1039/c7ra06306g

Cited by 7 publications

(4 citation statements)

References 49 publications

(42 reference statements)

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“…[41] With the addition of the electrolyte additives, the peaks located at 531.7-532.1, 529.2-530.8, and 532.2-532.5 eV are referred to O 2− , OH − and C─O, respectively. [28,42,43] These O peaks result from the reaction on Al anode.…”

Section: Resultsmentioning

confidence: 99%

Hybrid Organic–Inorganic Additive for Robust Al Anode in Alkaline Aluminum–Air Battery

Miao,

Li,

Jin

et al. 2023

Small Methods

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Aluminum–air batteries (AABs), known for their high energy density, environmental friendliness, and cost‐effectiveness, show immense promise in the realm of energy conversion applications. Nonetheless, their commercialization has encountered inherent challenges of Al anode corrosion and material degradation. In this study, economical hybrid electrolyte additives to inhibit the Al corrosion are developed, safeguarding the integrity of the Al anode. Due to the synergistic interplay between the organic compound dithiothreitol, and inorganic compounds zinc chloride, a robust zinc film is formed on the Al surface This Zn film plays a pivotal role in quelling parasitic hydrogen evolution reactions that typically can plague the Al electrode. Consequently, the as‐prepared hybrid additive culminates in a remarkable enhancement to AABs, delivering exceptional discharge capacity of 1793.37 mAh g−1, high energy density of 2047 Wh kg−1, and excellent battery longevity (over 20 h in on/off cycling tests). This study, therefore, introduces a novel approach in utilizing hybrid electrolyte additives to effectively counteract corrosion‐related challenges and boost the stability and performance of AABs.

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Section: Resultsmentioning

confidence: 99%

Hybrid Organic–Inorganic Additive for Robust Al Anode in Alkaline Aluminum–Air Battery

Miao,

Li,

Jin

et al. 2023

Small Methods

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“…To solve these issues, various strategies such as design of the cathode, 6‐10 modification of the separator, 11,12 and optimization of the electrolyte 13‐15 have been used. Interlayer inserted between the separator and the cathode is one of the most effective methods to enhance the conductivity and confine polysulfides 16,17 . For example, Zhuang et al 18 designed a novel interlayer using MoO 2 ‐decorated carbon nanofibers (MoO 2 ‐CNFs membrane) for Li‐S batteries, which can trap polysulfides through strong polar surface interaction and rapid redox reaction.…”

Section: Introductionmentioning

confidence: 99%

“…Interlayer inserted between the separator and the cathode is one of the most effective methods to enhance the conductivity and confine polysulfides. 16,17 For example, Zhuang et al 18 designed a novel interlayer using MoO 2 -decorated carbon nanofibers (MoO 2 -CNFs membrane) for Li-S batteries, which can trap polysulfides through strong polar surface interaction and rapid redox reaction. Shi et al 19 reported a conductive and polar niobium nitride (NbN), which is in-situ introduced onto graphene with ultrasmall size and high dispersion.…”

Section: Introductionmentioning

confidence: 99%

Lightweight freestanding hollow carbon fiber interlayer for high‐performance lithium‐sulfur batteries

Meng

Yang

Liu

et al. 2021

Intl J of Energy Research

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Summary As a promising next‐generation energy storage device, lithium‐sulfur (Li‐S) batteries have the high theoretical energy densities, however, the notorious “Shuttling Effect” greatly impacts their commercialization. Herein, a freestanding hollow carbon fiber (HCF) derived from waste cotton tissues was designed as an interlayer for Li‐S batteries by one‐step carbonization at different temperatures. The inherently interwoven fibers and exceptional hollow structure of the carbon interlayers can effectively accelerate the reaction kinetics and restrain the “Shuttling Effect.” Moreover, carbon interlayer can also act as an upper current collector to reutilize the active material, and further enhance the reversible capacities. In this study, the HCF‐800 carbon fiber interlayer was fabricated by carbonization at 800°C, which can endow the HCF interlayer with many profitable properties such as rich pore structures, excellent flexibility, and exceptional hollow tube structure. Therefore, the S/super‐P with HCF‐800 cell was shown the excellent cycling stability with 733 mAh g−1 at 0.1 C after 100 cycles. Even under a high sulfur loading of 2.23 mg cm−2, the cell also maintained a high capacity of 502 mAh g−1 after 100 cycles.

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“…It is also worth mentioning that various metal oxides have been employed to modify separators, because of their strong chemical bonding with the migrating LiPs. To date, many metal oxides (such as RuO 2 [15], TiO 2 [16][17][18], Al 2 O 3 [19,20], SnO 2 [21], V 2 O 5 [22], and MnO 2 [23]) have shown the ability to suppress shuttling of LiPs, resulting in decreased capacity decline and better electrical performance of the Li/S battery. For example, Evers et al [5] coated nanosized TiO 2 particles on the separator, which increased the cycling performance of the Li/S battery [5].…”

Section: Introductionmentioning

confidence: 99%

ZnO Nanoparticles Anchored on a N-Doped Graphene-Coated Separator for High Performance Lithium/Sulfur Batteries

Wang

et al. 2018

Metals

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Fabrication of a nanocrystalline zinc oxide (ZnO)/nitrogen-doped graphene (NDG) composite using a novel and facile in situ sol-gel technique is demonstrated in this study. A two-dimensional nanostructured morphology with uniform ZnO nanoparticles (average diameter of 10 ± 4 nm) anchored on NDG nanosheets was observed via electron microscopy. The polar heteroatoms on the graphene sheets provided abundant sites for polysulfide absorption. More importantly, the strong chemical interaction between ZnO and polysulfides efficiently hindered the transport of polysulfides. Consequently, the lithium/sulfur (Li/S) battery with the ZnO/NDG composite-coated separator exhibited enhanced performance in terms of discharge capacity and cycling stability compared to the cell with a conventional separator. With the modified separator, the Li/S battery achieved a discharge capacity of 942 mAh·g−1 after the first cycle and exhibited a capacity retention of 90.02% after the 200th charge/discharge test at 0.1 C. These results indicate that suppression of the shuttling of polysulfides efficiently improves the performance of the Li/S battery.

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A dual-faced interlayer prepared by electron beam evaporation for enhanced-performance lithium–sulfur batteries

Abstract: In this work, a dual-faced carbon paper was prepared by depositing Al2O3 on one side of carbonized filter paper via the technique of electron beam evaporation.

Cited by 7 publications

References 49 publications

Hybrid Organic–Inorganic Additive for Robust Al Anode in Alkaline Aluminum–Air Battery

Hybrid Organic–Inorganic Additive for Robust Al Anode in Alkaline Aluminum–Air Battery

Lightweight freestanding hollow carbon fiber interlayer for high‐performance lithium‐sulfur batteries

ZnO Nanoparticles Anchored on a N-Doped Graphene-Coated Separator for High Performance Lithium/Sulfur Batteries

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