4.8 Article

Quasi-Solid-State Sodium-Ion Full Battery with High-Power/Energy Densities

期刊

ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 21, 页码 17903-17910

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b02768

关键词

sodium-ion full battery; quasi-solid-state; gel-polymer electrolyte; high energy and power densities; Na3V2(PO4)(2)O2F cathode

资金

  1. National Natural Science Foundation of China [51602048]
  2. Fundamental Research Funds for the Central Universities [2412017FZ013]

向作者/读者索取更多资源

Developing a high-performance, low-cost, and safer rechargeable battery is a primary challenge in next generation electrochemical energy storage. In this work, a quasi-solid-state (QSS) sodium-ion full battery (SIFB) is designed and fabricated. Hard carbon cloth derived from cotton cloth and Na3V2(PO4)(2)O2F (NVPOF) are employed as the anode and the cathode, respectively, and a sodium ion conducting gel-polymer membrane is used as both the QSS electrolyte and separator, accomplishing the high energy and power densities in the QSS sodium-ion batteries. The energy density can reach 460 W h kg(-1) according to the mass of the cathode materials. Moreover, the fabricated QSS SIFB also exhibits an excellent rate performance (e.g., about 78.1 mA h g(-1) specific capacity at 10 C) and a superior cycle performance (e.g., similar to 90% capacity retention after SOO cycles at 10 C). These results show that the developed QSS SIFB is a hopeful candidate for large-scale energy storage.

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