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Rechargeable Mg-M (M = Li, Na and K) dual-metal-ion batteries based on a Berlin green cathode and a metallic Mg anode.
Phys Chem Chem Phys 2019; 21(36):20269-20275PC

Abstract

Mg-M (M = Li, Na and K) dual-metal-ion batteries featuring a dendrite-free Mg anode and an alkali-metal-ion storage cathode are promising safe energy storage systems. However, the compatibility between cathode materials and insertion cations might largely limit the electrochemical performance of the cathodes. In this work, three types of Mg-M (M = Li, Na and K) dual-metal-ion batteries are constructed with a Berlin green (FeFe(CN)6) cathode. The FeFe(CN)6 cathode is compatible with the dual-salt Mg2+/M+ (M = Li, Na and K) electrolytes, and delivers a high reversible capacity of 120 mA h g-1 at 50 mA g-1, with no capacity fading over 50 cycles in Mg-Na batteries. The Mg-Na battery also shows an outstanding rate capability, providing 85 mA h g-1 at 1000 mA g-1 and superior long-term cyclability over 800 cycles. The electrochemical performance comparison between Mg-Li, Mg-Na and Mg-K dual-metal-ion batteries demonstrates the significance of the appropriate hydrated ionic radius and dehydrated ionic radius for the insertion of cations with the FeFe(CN)6 cathode. This work provides new design strategies for stable and high energy density cathodes, and opens a new avenue for building safe and high-performance Mg-M (M = Li, Na and K) dual-metal-ion batteries for practical applications.

Authors+Show Affiliations

Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China. xufei2058@whu.edu.cn.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31490519

Citation

Zhang, Yujie, et al. "Rechargeable Mg-M (M = Li, Na and K) Dual-metal-ion Batteries Based On a Berlin Green Cathode and a Metallic Mg Anode." Physical Chemistry Chemical Physics : PCCP, vol. 21, no. 36, 2019, pp. 20269-20275.
Zhang Y, Shen J, Li X, et al. Rechargeable Mg-M (M = Li, Na and K) dual-metal-ion batteries based on a Berlin green cathode and a metallic Mg anode. Phys Chem Chem Phys. 2019;21(36):20269-20275.
Zhang, Y., Shen, J., Li, X., Chen, Z., Cao, S. A., Li, T., & Xu, F. (2019). Rechargeable Mg-M (M = Li, Na and K) dual-metal-ion batteries based on a Berlin green cathode and a metallic Mg anode. Physical Chemistry Chemical Physics : PCCP, 21(36), pp. 20269-20275. doi:10.1039/c9cp03836a.
Zhang Y, et al. Rechargeable Mg-M (M = Li, Na and K) Dual-metal-ion Batteries Based On a Berlin Green Cathode and a Metallic Mg Anode. Phys Chem Chem Phys. 2019 Sep 18;21(36):20269-20275. PubMed PMID: 31490519.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rechargeable Mg-M (M = Li, Na and K) dual-metal-ion batteries based on a Berlin green cathode and a metallic Mg anode. AU - Zhang,Yujie, AU - Shen,Jingwei, AU - Li,Xue, AU - Chen,Zhongxue, AU - Cao,Shun-An, AU - Li,Ting, AU - Xu,Fei, PY - 2019/9/7/pubmed PY - 2019/9/7/medline PY - 2019/9/7/entrez SP - 20269 EP - 20275 JF - Physical chemistry chemical physics : PCCP JO - Phys Chem Chem Phys VL - 21 IS - 36 N2 - Mg-M (M = Li, Na and K) dual-metal-ion batteries featuring a dendrite-free Mg anode and an alkali-metal-ion storage cathode are promising safe energy storage systems. However, the compatibility between cathode materials and insertion cations might largely limit the electrochemical performance of the cathodes. In this work, three types of Mg-M (M = Li, Na and K) dual-metal-ion batteries are constructed with a Berlin green (FeFe(CN)6) cathode. The FeFe(CN)6 cathode is compatible with the dual-salt Mg2+/M+ (M = Li, Na and K) electrolytes, and delivers a high reversible capacity of 120 mA h g-1 at 50 mA g-1, with no capacity fading over 50 cycles in Mg-Na batteries. The Mg-Na battery also shows an outstanding rate capability, providing 85 mA h g-1 at 1000 mA g-1 and superior long-term cyclability over 800 cycles. The electrochemical performance comparison between Mg-Li, Mg-Na and Mg-K dual-metal-ion batteries demonstrates the significance of the appropriate hydrated ionic radius and dehydrated ionic radius for the insertion of cations with the FeFe(CN)6 cathode. This work provides new design strategies for stable and high energy density cathodes, and opens a new avenue for building safe and high-performance Mg-M (M = Li, Na and K) dual-metal-ion batteries for practical applications. SN - 1463-9084 UR - https://www.unboundmedicine.com/medline/citation/31490519/Rechargeable_Mg_M__M_=_Li_Na_and_K__dual_metal_ion_batteries_based_on_a_Berlin_green_cathode_and_a_metallic_Mg_anode_ L2 - https://doi.org/10.1039/c9cp03836a DB - PRIME DP - Unbound Medicine ER -