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Title: A self-forming composite electrolyte for solid-state sodium battery with ultra-long cycle life

Journal Article · · Advanced Energy Materials (Online)
 [1];  [2];  [3];  [3];  [2];  [2];  [1];  [2];  [2];  [1];  [3];  [1];  [1];  [1];  [1]
  1. Univ. of Chinese Academy of Sciences, Beijing (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Chinese Academy of Sciences (CAS), Beijing (China)

Replacing organic liquid electrolyte with inorganic solid electrolytes (SE) can potentially address the inherent safety problems in conventional rechargeable batteries. Furthermore, all-solid-state batteries have been plagues by the relatively low ionic conductivity of solid electrolytes and large charge-transfer resistance resulted from solid-solid interfaces between electrode materials and solid electrolytes. Here we report a new design strategy for improving the ionic conductivity of solid electrolyte by self-forming a composite material. An optimized Na+ ion conducting composite electrolyte derived from the NASICON structure was successfully synthesized, yielding ultra-high ionic conductivity of 3.4 mS cm–1 at 25°C and 14 ms cm–1 at 80°C.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI ID:
1326759
Report Number(s):
BNL--112661-2016-JA; VT1201000
Journal Information:
Advanced Energy Materials (Online), Journal Name: Advanced Energy Materials (Online); ISSN 1614-6840
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Synergic antimony–niobium pentoxide nanomeshes for high-rate sodium storage journal January 2018
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