Progress and Opportunities of Vanadium-Based Compounds as Cathode Hosts, Decoration Layers of Separators, and Interlayers in Lithium Sulfur Batteries

Li, Wenbin; Wang, Ni; Wang, Hongxiao; Yang, Zihao; Yang, Haofei; Zhang, Jianhua; Yuan, Yitong; Wang, Jingjing; Pei, Jingjie; Li, Xifei

doi:10.1021/acs.cgd.2c00360

Cited by 6 publications

(1 citation statement)

References 96 publications

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“…In addition, the introduction of nitrogen into the transition metal lattice results in an electron density increase, so TMNs have an electronic structure similar to that of noble metals, which makes them a promising candidate for electrode materials. Therein, vanadium nitride (VN) with high theoretical Energies 2023, 16, 4816 2 of 10 capacity (~1200 mAh g −1 ) has attracted much focus owing to its low molecular weight and high valence of V (+3) that can transfer three electrons per formula unit [4][5][6]. VN is often accompanied by a huge volume expansion (~240%) in the electrochemical reaction process, which makes the structural framework of material extremely unstable and leads to a rapid capacity decay [7].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Sea-Urchin-like VN as High-Performance Anode for Lithium-Ion Batteries

Huang

et al. 2023

Energies

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Lithium-ion batteries are still the main theme of the contemporary market. Commercial graphite has struggled to meet the demand of high energy density for various electronic products due to its low theoretical capacity. Therefore, exploring for a new anode with high capacity is important. Vanadium nitride has attracted widespread attention due to its high theoretical specific capacity and good chemical/thermal stability. However, vanadium nitride is accompanied by huge volume expansion and nanoparticle agglomeration during the electrochemical reaction, which limits its application. Herein, sea-urchin-like vanadium nitride (SUK-VN) was successfully prepared with a simple hydrothermal method combined with an annealing strategy to boost the actual capacity of the vanadium nitride. The special sea-urchin-like morphology effectively suppresses the agglomeration of vanadium nitride nanoparticles and exposes more reactive sites, which facilitates the electrochemical performance of electrode materials. In the half-cells, sea-urchin-like vanadium nitride exhibits a specific capacity of 361.5 mAh g−1 at 0.1 A g−1 after 60 cycles, and even still achieves a specific capacity of 164.5 with a Coulomb efficiency of approximately 99.9% at 1 A g−1 after 500 cycles. Such a strategy provides the potential to enhance the electrochemical properties of vanadium nitride anodes in terms of solving the nanoparticle agglomeration.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Sea-Urchin-like VN as High-Performance Anode for Lithium-Ion Batteries

Huang

et al. 2023

Energies

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Versatile Separators Toward Advanced Lithium‐Sulfur Batteries: Status, Recent Progress, Challenges and Perspective

Zhang,

Liu

et al. 2024

ChemSusChem

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Lithium‐sulfur batteries (LSBs) have recently gained extensive attention due to their high energy density, low cost, and environmental friendliness. However, serious shuttle effect and uncontrolled growth of lithium dendrites restrict them from further commercial applications. As “the third electrode”, functional separators are of equal significance as both anodes and cathodes in LSBs. The challenges mentioned above are effectively addressed with rational design and optimization in separators, thereby enhancing their reversible capacities and cycle stability. The review discusses the status/operation mechanism of functional separators, then primarily focuses on recent research progress in versatile separators with purposeful modifications for LSBs, and summarizes the methods and characteristics of separator modification, including heterojunction engineering, single atoms, quantum dots, and defect engineering. From the perspective of the anodes, distinct methods to inhibit the growth of lithium dendrites by modifying the separator are discussed. Modifying the separators with flame retardant materials or choosing a solid electrolyte is expected to improve the safety of LSBs. Besides, in‐situ techniques and theoretical simulation calculations are proposed to advance LSBs. Finally, future challenges and prospects of separator modifications for next‐generation LSBs are highlighted. We believe that the review will be enormously essential to the practical development of advanced LSBs.

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Constructing Co/CoV2O6 tandem catalytic heterostructure to enhance lithium polysulfide conversion in lithium-sulfur batteries

Wang,

Li,

Cao

et al. 2024

Journal of Alloys and Compounds

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Progress and Opportunities of Vanadium-Based Compounds as Cathode Hosts, Decoration Layers of Separators, and Interlayers in Lithium Sulfur Batteries

Cited by 6 publications

References 96 publications

Facile Synthesis of Sea-Urchin-like VN as High-Performance Anode for Lithium-Ion Batteries

Facile Synthesis of Sea-Urchin-like VN as High-Performance Anode for Lithium-Ion Batteries

Versatile Separators Toward Advanced Lithium‐Sulfur Batteries: Status, Recent Progress, Challenges and Perspective

Constructing Co/CoV2O6 tandem catalytic heterostructure to enhance lithium polysulfide conversion in lithium-sulfur batteries

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