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Towards highly stable storage of sodium ions: a porous Na(3)V(2)(PO(4))(3)/C cathode material for sodium-ion batteries.
Chemistry. 2013 Oct 18; 19(43):14712-8.C

Abstract

A porous Na3 V2 (PO4)3 cathode material coated uniformly with a layer of approximately 6 nm carbon has been synthesized by the sol-gel method combined with a freeze-drying process. The special porous morphology and structure significantly increases the specific surface area of the material, which greatly enlarges the contact area between the electrode and electrolyte, and consequently supplies more active sites for sodium ions. When employed as a cathode material of sodium-ion batteries, this porous Na3 V2 (PO4)3 /C exhibits excellent rate performance and cycling stability; for instance, it shows quite a flat potential plateau at 3.4 V in the potential window of 2.7-4.0 V versus Na(+) /Na and delivers an initial capacity as high as 118.9 and 98.0 mA h g(-1) at current rates of 0.05 and 0.5 C, respectively, and after 50 cycles, a good capacity retention of 92.7 and 93.6 % are maintained. Moreover, even when the discharge current density is increased to 5 C (590 mA g(-1)), an initial capacity of 97.6 mA h g(-1) can still be achieved, and an exciting capacity retention of 88.6 % is obtained after 100 cycles. The good cycle performance, excellent rate capability, and moreover, the low cost of Na3 V2 (PO4)3 /C suggest that this material is a promising cathode for large-scale sodium-ion rechargeable batteries.

Authors+Show Affiliations

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 (P.R. China), Fax: (+86) 10-6442-5385.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24014393

Citation

Shen, Wei, et al. "Towards Highly Stable Storage of Sodium Ions: a Porous Na(3)V(2)(PO(4))(3)/C Cathode Material for Sodium-ion Batteries." Chemistry (Weinheim an Der Bergstrasse, Germany), vol. 19, no. 43, 2013, pp. 14712-8.
Shen W, Wang C, Liu H, et al. Towards highly stable storage of sodium ions: a porous Na(3)V(2)(PO(4))(3)/C cathode material for sodium-ion batteries. Chemistry. 2013;19(43):14712-8.
Shen, W., Wang, C., Liu, H., & Yang, W. (2013). Towards highly stable storage of sodium ions: a porous Na(3)V(2)(PO(4))(3)/C cathode material for sodium-ion batteries. Chemistry (Weinheim an Der Bergstrasse, Germany), 19(43), 14712-8. https://doi.org/10.1002/chem.201300005
Shen W, et al. Towards Highly Stable Storage of Sodium Ions: a Porous Na(3)V(2)(PO(4))(3)/C Cathode Material for Sodium-ion Batteries. Chemistry. 2013 Oct 18;19(43):14712-8. PubMed PMID: 24014393.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Towards highly stable storage of sodium ions: a porous Na(3)V(2)(PO(4))(3)/C cathode material for sodium-ion batteries. AU - Shen,Wei, AU - Wang,Cong, AU - Liu,Haimei, AU - Yang,Wensheng, Y1 - 2013/09/06/ PY - 2013/01/02/received PY - 2013/07/19/revised PY - 2013/9/10/entrez PY - 2013/9/10/pubmed PY - 2013/9/10/medline KW - carbon KW - cathodes KW - electrochemistry KW - porosity KW - sodium SP - 14712 EP - 8 JF - Chemistry (Weinheim an der Bergstrasse, Germany) JO - Chemistry VL - 19 IS - 43 N2 - A porous Na3 V2 (PO4)3 cathode material coated uniformly with a layer of approximately 6 nm carbon has been synthesized by the sol-gel method combined with a freeze-drying process. The special porous morphology and structure significantly increases the specific surface area of the material, which greatly enlarges the contact area between the electrode and electrolyte, and consequently supplies more active sites for sodium ions. When employed as a cathode material of sodium-ion batteries, this porous Na3 V2 (PO4)3 /C exhibits excellent rate performance and cycling stability; for instance, it shows quite a flat potential plateau at 3.4 V in the potential window of 2.7-4.0 V versus Na(+) /Na and delivers an initial capacity as high as 118.9 and 98.0 mA h g(-1) at current rates of 0.05 and 0.5 C, respectively, and after 50 cycles, a good capacity retention of 92.7 and 93.6 % are maintained. Moreover, even when the discharge current density is increased to 5 C (590 mA g(-1)), an initial capacity of 97.6 mA h g(-1) can still be achieved, and an exciting capacity retention of 88.6 % is obtained after 100 cycles. The good cycle performance, excellent rate capability, and moreover, the low cost of Na3 V2 (PO4)3 /C suggest that this material is a promising cathode for large-scale sodium-ion rechargeable batteries. SN - 1521-3765 UR - https://www.unboundmedicine.com/medline/citation/24014393/Towards_highly_stable_storage_of_sodium_ions:_a_porous_Na_3_V_2__PO_4___3_/C_cathode_material_for_sodium_ion_batteries_ L2 - https://doi.org/10.1002/chem.201300005 DB - PRIME DP - Unbound Medicine ER -
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