Employing Ni-Embedded Porous Graphitic Carbon Fibers for High-Efficiency Lithium–Sulfur Batteries

Wang, Changhao; Li, Yahao; Cao, Feng; Zhang, Yongqi; Xia, Xinhui; Zhang, Lingjie

doi:10.1021/acsami.1c24755

Cited by 95 publications

(34 citation statements)

References 45 publications

(65 reference statements)

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“…[1][2][3] In combination with the excellent cycling stability, lightweight, and environmental friendliness lithium-ion batteries (LIBs) take a leading stand for portable and intelligent electronic devices. [4][5][6][7][8] However, the insufficient resource of lithium and austere misdistribution encourage us to find an alternative energy storage technology which satisfies the ever-increasing demands of energy and power density. Potassium ion batteries (PIBs) are eliciting intensive research interest in large-scale energy storage applications because of their abundant source, low cost, and suitable working potential.…”

Section: Introductionmentioning

confidence: 99%

Self‐Regulation of Spin Polarization Density Propelling the Ion Diffusion Kinetics for Flexible Potassium‐Ion Batteries

Zhou

et al. 2022

Adv Funct Materials

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Potassium ion batteries (PIBs) have aroused intensive research interest owing to their abundant source, low cost, and suitable working potential. Here, a V 2 C-VO 2 nanoribbon intertwined nanosheet 3D multi-heterostructure with rich heterointerface and heterojunction is fabricated via a facile solution-based method for realizing a highly flexible and robust anode material of PIBs. The coexistence of V 2 C-VO 2 in the constituent individual nanoribbon and nanosheet generates rich heterojunctions and heterointerfaces in this hetero-dimensional and multi-scale heterostructure, which not only constructs interconnected 3D channels for rapid electron/ion transfer and diffusion, but also greatly enhances the structural durability and mechanical robustness. With experimental results and systematical theoretical studies, it is confirmed that the V 2 C-VO 2 multi-heterostructure can self-regulate the spin polarization density of constituent individual V 2 C and VO 2 , which propels the K + ion diffusion kinetics during charge and discharge processes. Consequently, the multi-heterostructure-based electrode can maintain a capacity of ≈200 mAh g −1 over repeated 2000 cycles at 1 A g −1 . Practically, the flexible full cells exhibit decent electrochemical property under intensive bending conditions, holding great promise for flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Self‐Regulation of Spin Polarization Density Propelling the Ion Diffusion Kinetics for Flexible Potassium‐Ion Batteries

Zhou

et al. 2022

Adv Funct Materials

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“…However, the large-scale application of high-voltage inorganic electrode materials (e.g., lithium cobalt oxide, and lithium nickel manganese cobalt oxide) in lithium-ion batteries suffers from inferior reaction kinetics under cold-climate conditions and increasing worldwide concerns regarding the scarce and unsustainable transition metal resources (i.e., Ni or Co) . In recent years, researchers have paid extensive attention to the development of novel electrodes (such as carbon-based materials, bioderived electrodes , ). Among them, organic electrode materials (OEMs) are made up of plentiful elements (such as C, H, O, N, and S) and can be produced from biomass or through simple synthesis procedures .…”

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confidence: 99%

Surpassing the Redox Potential Limit of Organic Cathode Materials via Extended p−π Conjugation of Dioxin

Zheng

Liu

et al. 2022

Nano Lett.

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The key to enabling high energy density of organic energy-storage systems is the development of high-voltage organic cathodes; however, the redox voltage (<4.0 V vs Li/Li+) of state-of-the-art organic electrode materials (OEMs) remains unsatisfactory. Herein, we propose a novel dibromotetraoxapentacene (DBTOP) redox center to surpass the redox potential limit of OEMs, achieving ultrahigh discharge plateaus of approximately 4.4 V (vs Li+/Li). As theoretically analyzed, electron delocalization between dioxin active centers and benzene rings as well as electron-withdrawing bromine atoms endows the molecule with a low occupied molecular orbital level by diluting the electron density of dioxin in the whole p−π conjugated skeleton, and the strong π–π interactions among the DBTOP molecules provide a faster electrochemical kinetic pathway. This tetraoxapentacene redox center makes the working voltage of OEMS closer to the high-voltage inorganic electrodes, and its chemical and structural tunability may stimulate the further development of high-voltage organic cathodes.

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“…[19][20][21][22][23][24] This boosts the safety and long-term stability of the battery. Moreover, unlike Li ions that form an alloy with Al, [25][26][27][28] Na ions are non-reactive with Al. Thus, instead of heavy and expensive Cu current collectors, Al can be used as the current collector for SIBs which further reduces the overall cost of the SIBs by ~20 %.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Carbon Anodes for Sodium‐Ion Batteries

Zhang

Wang

et al. 2022

The Chemical Record

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Sodium-ion batteries (SIBs) have gained tremendous attention for large-scale energy storage applications due to the natural abundance, low cost, and even geographic distribution of sodium resources as well as a similar working mechanism to lithium-ion batteries (LIBs). One of the critical bottlenecks, however, is the design of high-performance and low-cost anode materials. Graphite anode that has dominated the market share of LIBs does not properly intercalate sodium ions. However, other carbonaceous materials are still considered as one of the most promising anode materials for SIBs in virtue of their high electronic conductivity, abundant active sites, hierarchical porosity, and excellent mechanical stability. In this review, we have tried to summarize the latest progresses made on the development of carbon-based negative electrodes (including hard carbons, soft carbons, and synthetic carbon allotropes) for SIBs. We also have provided a comprehensive understanding of their physical properties, the sodium ions storage mechanisms, and the improvement measures to cope with the current challenges. In addition, we have proposed future research directions for SIBs that will provide important insights into further development of carbon-based materials for SIBs.

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Employing Ni-Embedded Porous Graphitic Carbon Fibers for High-Efficiency Lithium–Sulfur Batteries

Cited by 95 publications

References 45 publications

Self‐Regulation of Spin Polarization Density Propelling the Ion Diffusion Kinetics for Flexible Potassium‐Ion Batteries

Self‐Regulation of Spin Polarization Density Propelling the Ion Diffusion Kinetics for Flexible Potassium‐Ion Batteries

Surpassing the Redox Potential Limit of Organic Cathode Materials via Extended p−π Conjugation of Dioxin

Recent Advances in Carbon Anodes for Sodium‐Ion Batteries

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