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Feng M, Du Q, Su L, et al. Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions. Sci Rep. 2017;7(1):2219doi: 10.1038/s41598-017-02028-0.
Feng, M., Du, Q., Su, L., Zhang, G., Wang, G., Ma, Z., Gao, W., Qin, X., & Shao, G. (2017). Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions. Scientific reports, 7(1), 2219. https://doi.org/10.1038/s41598-017-02028-0
Feng, Mengya, et al. "Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions." Scientific reports vol. 7,1 (2017): 2219. doi: https://doi.org/10.1038/s41598-017-02028-0
Feng M, Du Q, Su L, Zhang G, Wang G, Ma Z, Gao W, Qin X, Shao G. Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions. Sci Rep. 2017 May 22;7(1):2219. doi: 10.1038/s41598-017-02028-0. PMID: 28533510; PMCID: PMC5440409.
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Sci Rep. 2017 May 22;7(1):2219. doi: 10.1038/s41598-017-02028-0.

Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions.

Scientific reports

Mengya Feng, Qinghua Du, Li Su, Guowei Zhang, Guiling Wang, Zhipeng Ma, Weimin Gao, Xiujuan Qin, Guangjie Shao

Affiliations

  1. State key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
  2. Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China.
  3. Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China. [email protected].
  4. State key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China. [email protected].
  5. Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China. [email protected].
  6. State key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China. [email protected].
  7. Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China. [email protected].

PMID: 28533510 PMCID: PMC5440409 DOI: 10.1038/s41598-017-02028-0

Abstract

Materials with a layered structure have attracted tremendous attention because of their unique properties. The ultrathin nanosheet structure can result in extremely rapid intercalation/de-intercalation of Na ions in the charge-discharge progress. Herein, we report a manganese oxide with pre-intercalated K and Na ions and having flower-like ultrathin layered structure, which was synthesized by a facile but efficient hydrothermal method under mild condition. The pre-intercalation of Na and K ions facilitates the access of electrolyte ions and shortens the ion diffusion pathways. The layered manganese oxide shows ultrahigh specific capacity when it is used as cathode material for sodium-ion batteries. It also exhibits excellent stability and reversibility. It was found that the amount of intercalated Na ions is approximately 71% of the total charge. The prominent electrochemical performance of the manganese oxide demonstrates the importance of design and synthesis of pre-intercalated ultrathin layered materials.

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