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Title: Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity

Abstract

Among all solid electrolytes, composite solid polymer electrolytes, comprised of polymer matrix and ceramic fillers, garner great interest due to the enhancement of ionic conductivity and mechanical properties derived from ceramic–polymer interactions. Here, we report a composite electrolyte with densely packed, vertically aligned, and continuous nanoscale ceramic–polymer interfaces, using surface-modified anodized aluminum oxide as the ceramic scaffold and poly(ethylene oxide) as the polymer matrix. The fast Li+ transport along the ceramic–polymer interfaces was proven experimentally for the first time, and an interfacial ionic conductivity higher than 10–3 S/cm at 0 °C was predicted. The presented composite solid electrolyte achieved an ionic conductivity as high as 5.82 × 10–4 S/cm at the electrode level. In conclusion, the vertically aligned interfacial structure in the composite electrolytes enables the viable application of the composite solid electrolyte with superior ionic conductivity and high hardness, allowing Li–Li cells to be cycled at a small polarization without Li dendrite penetration.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [2];  [2]; ORCiD logo [2]; ORCiD logo [2];  [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]
  1. Stanford Univ., Stanford, CA (United States); Univ. of Electronic Science and Technology of China, Sichuan (People's Republic of China)
  2. Stanford Univ., Stanford, CA (United States)
  3. Univ. of Electronic Science and Technology of China, Sichuan (People's Republic of China)
  4. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1470937
Grant/Contract Number:  
AC02-76SF00515; NCET-12-0098; 51472044
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 18; Journal Issue: 6; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ceramic−polymer interfaces; composite solid polymer electrolytes; ionic conductivity; Lithium batteries; vertically aligned nanostructures

Citation Formats

Zhang, Xiaokun, Xie, Jin, Shi, Feifei, Lin, Dingchang, Liu, Yayuan, Liu, Wei, Pei, Allen, Gong, Yongji, Wang, Hongxia, Liu, Kai, Xiang, Yong, and Cui, Yi. Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity. United States: N. p., 2018. Web. doi:10.1021/acs.nanolett.8b01111.
Zhang, Xiaokun, Xie, Jin, Shi, Feifei, Lin, Dingchang, Liu, Yayuan, Liu, Wei, Pei, Allen, Gong, Yongji, Wang, Hongxia, Liu, Kai, Xiang, Yong, & Cui, Yi. Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity. United States. doi:https://doi.org/10.1021/acs.nanolett.8b01111
Zhang, Xiaokun, Xie, Jin, Shi, Feifei, Lin, Dingchang, Liu, Yayuan, Liu, Wei, Pei, Allen, Gong, Yongji, Wang, Hongxia, Liu, Kai, Xiang, Yong, and Cui, Yi. Fri . "Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity". United States. doi:https://doi.org/10.1021/acs.nanolett.8b01111. https://www.osti.gov/servlets/purl/1470937.
@article{osti_1470937,
title = {Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity},
author = {Zhang, Xiaokun and Xie, Jin and Shi, Feifei and Lin, Dingchang and Liu, Yayuan and Liu, Wei and Pei, Allen and Gong, Yongji and Wang, Hongxia and Liu, Kai and Xiang, Yong and Cui, Yi},
abstractNote = {Among all solid electrolytes, composite solid polymer electrolytes, comprised of polymer matrix and ceramic fillers, garner great interest due to the enhancement of ionic conductivity and mechanical properties derived from ceramic–polymer interactions. Here, we report a composite electrolyte with densely packed, vertically aligned, and continuous nanoscale ceramic–polymer interfaces, using surface-modified anodized aluminum oxide as the ceramic scaffold and poly(ethylene oxide) as the polymer matrix. The fast Li+ transport along the ceramic–polymer interfaces was proven experimentally for the first time, and an interfacial ionic conductivity higher than 10–3 S/cm at 0 °C was predicted. The presented composite solid electrolyte achieved an ionic conductivity as high as 5.82 × 10–4 S/cm at the electrode level. In conclusion, the vertically aligned interfacial structure in the composite electrolytes enables the viable application of the composite solid electrolyte with superior ionic conductivity and high hardness, allowing Li–Li cells to be cycled at a small polarization without Li dendrite penetration.},
doi = {10.1021/acs.nanolett.8b01111},
journal = {Nano Letters},
number = 6,
volume = 18,
place = {United States},
year = {2018},
month = {5}
}

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