Se‐Induced Fibrous Nano Red P with Superior Conductivity for Sodium Batteries

Zhu, Linqin; Xu, Kangli; Fang, Yanyan; Wu, Xiaojun; Li, Song; Zhu, Yuwei; Qian, Yitai

doi:10.1002/adfm.202302444

Cited by 13 publications

(3 citation statements)

References 46 publications

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“…As an allotrope of red phosphorus, the FP with a regular crystal structure has a significantly increased electronic conductivity (approximately 10 8 times), which shows great prospects for improving the Na/K storage performance of the P-based anode materials. Recently, Zhu et al found that trace amounts of selenium (Se) could induce the conversion of commercial RP into crystalline FP and developed a 1D FP nanostructure via a typical annealing procedure (Figure 5d) [50]. As shown in Figure 5e, the as-prepared FP exhibits a typical morphology of nanofibers with a diameter of ~100 nm and length of 2-3 µm.…”

Section: D Materials: Nanowires Nanorods Nanofibersmentioning

confidence: 99%

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Nanostructure Engineering of Alloy-Based Anode Materials with Different Dimensions for Sodium/Potassium Storage

Cheng,

Li,

Jiang

et al. 2023

Coatings

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Sodium/potassium-ion batteries have drawn intensive investigation interest from researchers owing to their abundant element resources and significant cost advantages. Anode materials based on alloy reaction mechanisms have the prominent merits of a suitable reaction potential and high theoretical specific capacity and energy density. However, very large volumetric stresses and volume changes during the charge/discharge process and the resulting electrode structural cracking, deactivation and capacity fading seriously hinder their development. To date, a series of modification strategies have been proposed to tackle these challenges and achieve good electrochemical performance. Herein, we review the recent advances in the structural engineering of alloy-type anodes for sodium/potassium storage, mainly including phosphorus, tin, antimony, bismuth and related alloy materials, from the perspective of dimensional structure. Furthermore, some future research directions and unresolved issues are presented for the investigation of alloy-based anode materials. It is hoped that this review can serve as a guide for the future development and practical application of sodium/potassium-ion batteries.

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Section: D Materials: Nanowires Nanorods Nanofibersmentioning

confidence: 99%

“…[42][43][44], copyright 2018, 2020, 2021, American Chemical Society; from Refs. [45][46][47][48][49][50], Copyright 2019, 2021, 2023, Wiley-VCH; from Ref. [51], Copyright 2021, Elsevier; from Refs.…”

Section: Characteristics and Challengesmentioning

confidence: 99%

Nanostructure Engineering of Alloy-Based Anode Materials with Different Dimensions for Sodium/Potassium Storage

Cheng,

Li,

Jiang

et al. 2023

Coatings

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“…Another alloy-type element is phosphorus with a weak electronegativity and high reactivity. Generally, phosphides can provide fast reaction kinetics, high coulombic efficiency, and reduced polarization for rechargeable batteries. − In particular, the cubic SiP phase possesses a sphalerite lattice structure akin to the diamond lattice of silicon. Moreover, it can attain metallic conductivity, as confirmed by the calculated electronic structure (Figure S1), owing to the delocalized electrons introduced by phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Element Screening of High-Entropy Silicon Anodes for Superior Li-Storage Performance of Li-Ion Batteries

Li,

Wang,

et al. 2024

J. Am. Chem. Soc.

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The high-entropy silicon anodes are attractive for enhancing electronic and Li-ionic conductivity while mitigating volume effects for advanced Li-ion batteries (LIBs), but are plagued by the complicated elements screening process. Inspired by the resemblances in the structure between sphalerite and diamond, we have selected sphalerite-structured SiP with metallic conductivity as the parent phase for exploring the element screening of high-entropy silicon-based anodes. The inclusion of the Zn in the sphalerite structure is crucial for improving the structural stability and Li-storage capacity. Within the same group, Li-storage performance is significantly improved with increasing atomic number in the order of BZnSiP 3 < AlZnSiP 3 < GaZnSiP 3 < InZnSiP 3 . Thus, InZnSiP 3 -based electrodes achieved a high capacity of 719 mA h g −1 even after 1,500 cycles at 2,000 mA g −1 , and a high-rate capacity of 725 mA h g −1 at 10,000 mA g −1 , owing to its superior lithium-ion affinity, faster electronic conduction and lithium-ion diffusion, higher Li-storage capacity and reversibility, and mechanical integrity than others. Additionally, the incorporation of elements with larger atomic sizes leads to greater lattice distortion and more defects, further facilitating mass and charge transport. Following these screening rules, highentropy disordered-cation silicon-based compounds such as GaCuSnInZnSiP 6 , GaCu(or Sn)InZnSiP 5 , and CuSnInZnSiP 5 , as well as high-entropy compounds with mixed-cation and -anion compositions, such as InZnSiPSeTe and InZnSiP 2 Se(or Te), are synthesized, demonstrating improved Li-storage performance with metallic conductivity. The phase formation mechanism of these compounds is attributed to the negative formation energies arising from elevated entropy.

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Fluorine Doping Modulating Pore Structure and Adsorption Capability of Carbon Matrix Boosting Potassium Storage Performance of Red Phosphorus Anode

Wang,

Zhang,

et al. 2024

Adv Funct Materials

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The application of alloying‐typed red phosphorus (red P) anode in potassium‐ion batteries (KIBs) with ultra‐high theoretical capacity is hindered by the limited capacity and fast capacity decay due to poor electronic conductivity and huge volume change. Herein, a facile and efficient strategy of fluorine (F) doping is innovatively developed to modulate the pore structure of carbon matrix (F‐CNS) to encapsulate red P with enhanced potassium storage capability. Theoretical calculations reveal that F doping induces additional defects within the carbon layer, which facilitates P4 molecules embedding into the F‐doping‐induced micropores, enhances the adsorption ability toward K atoms and P4 molecules, and improves electrochemical kinetics assisted with more charge transfer obtained from the electron density difference, thus enabling robust potassium storage capability for such unique Red P@F‐CNS anode. Accordingly, the Red P@F‐CNS anode demonstrates outstanding cycling stability (90% capacity retention after 800 cycles at 2A g−1), and the potassium‐ion full cell (Red P@F‐CNS//KFeHCF) exhibits exceptional long‐term cycling performance (129 mAh g−1 after 2500 cycles at 5 A g−1 with only 0.014% decay per cycle). In situ characterizations confirm the superior structural integrity of the carbon‐based matrix. This study offers a rational design principle for engineering high‐performance carbon‐supported alloying‐typed anodes for KIBs.

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Se‐Induced Fibrous Nano Red P with Superior Conductivity for Sodium Batteries

Cited by 13 publications

References 46 publications

Nanostructure Engineering of Alloy-Based Anode Materials with Different Dimensions for Sodium/Potassium Storage

Nanostructure Engineering of Alloy-Based Anode Materials with Different Dimensions for Sodium/Potassium Storage

Element Screening of High-Entropy Silicon Anodes for Superior Li-Storage Performance of Li-Ion Batteries

Fluorine Doping Modulating Pore Structure and Adsorption Capability of Carbon Matrix Boosting Potassium Storage Performance of Red Phosphorus Anode

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