期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 27, 页码 24192-24197出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b07647
关键词
sodium-ion battery; NASICON; solid-state battery; Na3V2(PO4)(3); Na3V2(PO4)O2F; Na5YSi4O12
资金
- Fundamental Research Funds for the Central Universities
Na super ionic conductor (NASICON)-structured materials have evolved to play many critical roles in battery systems because of their three-dimensional framework structures. Here, by coupling NASICON-structured Na3V2(PO4)(2)O2F cathodes and Na3V2(PO4)(3) anodes, an asymmetric Na-ion-based full cell exhibits two flat voltage plateaus at about 2.3 and 1.9 V and a high capacity of 101 mA h/g. Moreover, an all-solid-state Na-ion battery has been further enabled by the concept of using all NASICON-structured materials, including cathodes, anodes, and electrolytes (Na5YSi4O12), which delivers a high output voltage. Importantly, the full cell displays high safety without using a flammable organic liquid electrolyte and superior structure stability with all NASICON-structured materials.
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