3D Hierarchical nano-flake/micro-flower iron fluoride with hydration water induced tunnels for secondary lithium battery cathodes

Ying Bai, Xingzhen Zhou, Chun Zhan, Lu Ma, Yifei Yuan, Chuan Wu, Mizi Chen, Guanghai Chen, Qiao Ni, Feng Wu, Reza Shahbazian-Yassar, Tianpin Wu, Jun Lu, Khalil Amine

    Research output: Research - peer-reviewArticle

    • 4 Citations

    Abstract

    As a potential multi-electron electrode material for next generation lithium ion batteries, iron fluoride (FeF3) and its analogues are attracting much more attentions. Their microstructures are the key to achieve good electrochemical performances. In this work, FeF3·3H2O nano-flakes precursor with high crystallinity and flower-like morphology is synthesized successfully, by a liquid precipitation method using Fe(NO3)3·9H2O and NH4HF2 as raw materials. The formation and the crystal growth mechanisms of the FeF3·3H2O precursors are investigated and discussed. After different temperature heat-treatment and followed by ball-milling with Super P, the as-prepared FeF3.0·33H2O/C and FeF3/C nanocomposites are used as cathode materials for lithium ion batteries. The FeF3.0·33H2O/C nanocomposite exhibits a noticeable initial specific capacity of 187.1 mAh g−1 and reversible specific capacity of 172.3 mAh g−1 at .1 C within a potential range of 2.0–4.5 V. The capacity retention is as high as 97.33% after 50 cycles. Combined with HRTEM test, it confirms that the hydration water is not harmful but useful, namely, the tunnel phase formed with the hydration water is crucial to unobstructed Li+ diffusion, and therefore leading to excellent electrochemical performances.

    LanguageEnglish (US)
    Pages10-18
    Number of pages9
    JournalNano Energy
    Volume32
    DOIs
    StatePublished - Feb 1 2017

    Fingerprint

    Lithium batteries
    Fluorides
    Hydration
    Nanocomposites
    Tunnels
    Cathodes
    Iron
    Water
    Lithium-ion batteries
    Ball milling
    Crystallization
    Raw materials
    Heat treatment
    Microstructure
    Electrodes
    Electrons
    Liquids
    Temperature
    Crystal growth

    Keywords

    • Cathode materials
    • Hydration water
    • Iron fluoride
    • Liquid precipitation
    • Lithium ion batteries

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Materials Science(all)
    • Electrical and Electronic Engineering

    Cite this

    3D Hierarchical nano-flake/micro-flower iron fluoride with hydration water induced tunnels for secondary lithium battery cathodes. / Bai, Ying; Zhou, Xingzhen; Zhan, Chun; Ma, Lu; Yuan, Yifei; Wu, Chuan; Chen, Mizi; Chen, Guanghai; Ni, Qiao; Wu, Feng; Shahbazian-Yassar, Reza; Wu, Tianpin; Lu, Jun; Amine, Khalil.

    In: Nano Energy, Vol. 32, 01.02.2017, p. 10-18.

    Research output: Research - peer-reviewArticle

    Bai, Y, Zhou, X, Zhan, C, Ma, L, Yuan, Y, Wu, C, Chen, M, Chen, G, Ni, Q, Wu, F, Shahbazian-Yassar, R, Wu, T, Lu, J & Amine, K 2017, '3D Hierarchical nano-flake/micro-flower iron fluoride with hydration water induced tunnels for secondary lithium battery cathodes' Nano Energy, vol 32, pp. 10-18. DOI: 10.1016/j.nanoen.2016.12.017
    Bai, Ying ; Zhou, Xingzhen ; Zhan, Chun ; Ma, Lu ; Yuan, Yifei ; Wu, Chuan ; Chen, Mizi ; Chen, Guanghai ; Ni, Qiao ; Wu, Feng ; Shahbazian-Yassar, Reza ; Wu, Tianpin ; Lu, Jun ; Amine, Khalil. / 3D Hierarchical nano-flake/micro-flower iron fluoride with hydration water induced tunnels for secondary lithium battery cathodes. In: Nano Energy. 2017 ; Vol. 32. pp. 10-18
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    AU - Ma,Lu

    AU - Yuan,Yifei

    AU - Wu,Chuan

    AU - Chen,Mizi

    AU - Chen,Guanghai

    AU - Ni,Qiao

    AU - Wu,Feng

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