1. Volume 2, Issue 11, Pages 2348-2363 (November 2018)
Scalable Room-Temperature Synthesis of Multi-shelled Na3(VOPO4)2F Microsphere Cathodes 
Yuruo Qi, Zizheng Tong, Junmei Zhao, Lu Ma, Tianpin Wu, Huizhou Liu, Chao Yang, Jun Lu, Yong-Sheng Hu 
Joule 
Volume 2, Issue 11, Pages (November 2018)
DOI: /j.joule
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2. Joule 2018 2, DOI: ( /j.joule )
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3. Figure 1 Material Synthesis
(A–F) Morphology evolution of NVPOF microspheres at different reaction time intervals: (A) 2 min, (B) 1.33 hr, (C) 24 hr, (D) 100 hr, (E) 144 hr, (F) TEM image of NVPOF at 144 hr.
(G) Possible self-assembly formation mechanism of NVPOF microspheres with a multi-shelled hollow architecture.
Joule 2018 2, DOI: ( /j.joule )
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4. Figure 2 Crystal and Electronic Structure Characterizations
(A) Rietveld-refined profiles of as-synthesized NVPOF, experimental (black dots), fitted (red line), and the residual discrepancy (gray lower line).
(B) Schematic diagram of the NVPOF tetragonal structure.
(C) V K-edge XANES spectrum of as-synthesized NVPOF.
(D) UV-vis spectra of as-synthesized NVPOF, VCl3, VOSO4, and NaVO3.
Joule 2018 2, DOI: ( /j.joule )
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5. Figure 3 Na-Storage Performance
(A) Galvanostatic charge and discharge curves of NVPOF electrode cycled at a current rate of C/5.
(B) The rate capability of NVPOF electrode at various rates from C/10 to 15 C.
(C) The cycling performance of NVPOF electrode at a current rate of 15 C.
Joule 2018 2, DOI: ( /j.joule )
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6. Figure 4 Crystal and Electronic Structure Evolution
(A) The lab in situ XRD patterns and corresponding charge/discharge curves for NVPOF electrode at a current rate of C/10, λ =  Å.
(B) Ex situ UV-vis spectra of the NVPOF electrode (Cvanadium = 5.85 mmol·L−1): 1, fresh electrode before charge; 2, charged at 3.85 V; 3, charged at 4.3 V; 4, discharged at 3.75 V; 5, discharged at 2.5 V.
Joule 2018 2, DOI: ( /j.joule )
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7. Scheme 1
Schematic of Integration of Extraction-Separation and Materials-Preparation (NVPOF as an Example)
Joule 2018 2, DOI: ( /j.joule )
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