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@ARTICLE{Hadouchi:894620,
      author       = {Hadouchi, Mohammed and Yaqoob, Najma and Kaghazchi, Payam
                      and Tang, Mingxue and Liu, Jie and Sang, Pengfei and Fu,
                      Yongzhu and Huang, Yunhui and Ma, Jiwei},
      title        = {{F}ast sodium intercalation in
                      {N}a3.41£0.59{F}e{V}({PO}4)3: {A} novel sodium-deficient
                      {NASICON} cathode for sodium-ion batteries},
      journal      = {Energy storage materials},
      volume       = {35},
      issn         = {2405-8297},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-03317},
      pages        = {192 - 202},
      year         = {2021},
      abstract     = {Sodium-ion battery technology is one of the best
                      alternative candidates to the lithium analogue due to the
                      low cost and the abundance of sodium. Extensive research
                      effort is dedicated to the development of low-cost and
                      high-performance cathodes. Here, a new sodium-deficient
                      NASICON material Na3.41£0.59FeV(PO4)3 is synthesized by a
                      simple sol-gel method. This new material delivers high
                      initial discharge capacity of 170 mAh g−1 in the voltage
                      range of 1.5-4.4 V vs. Na+/Na, originating from the
                      intercalation of about 3 Na+ per formula unit. Furthermore,
                      when cycled in the range of 2.0-3.8 V vs. Na+/Na, excellent
                      rate capability and outstanding cycle life are obtained. The
                      remarkable electrochemical performances are attributed to
                      the small volume change (2.36 $\%)$ during the sodium
                      extraction through a single-phase mechanism proved by in
                      situ X-ray diffraction (XRD). Refined XRD and 23Na
                      solid-state Nuclear Magnetic Resonance (NMR) combined with
                      Density functional theory (DFT) calculations reveal that the
                      sodium extraction during charge process occurs preferably
                      from Na2 sites. Moreover, this new cathode exhibits high
                      sodium diffusion kinetics confirmed by Galvanostatic
                      Intermittent Titration Technique (GITT). These findings
                      highlight the beneficial use of non-stoichiometry in
                      electrodes for batteries and provide rational design of
                      high-performance cathode materials for sodium-ion
                      batteries.},
      cin          = {IEK-1},
      ddc          = {624},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000621356400006},
      doi          = {10.1016/j.ensm.2020.11.010},
      url          = {https://juser.fz-juelich.de/record/894620},
}