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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Feng M,Du Q,Su L,Zhang G,Wang G,Ma Z,Gao W,Qin X,Shao Gdoi
10.1038/s41598-017-02028-0subject
Has Abstractpub_date
2017-05-22 00:00:00pages
2219issue
1issn
2045-2322pii
10.1038/s41598-017-02028-0journal_volume
7pub_type
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