Vertically Aligned and Continuous Nanoscale Ceramic–Polymer Interfaces in Composite Solid Polymer Electrolytes for Enhanced Ionic Conductivity
- Stanford Univ., Stanford, CA (United States); Univ. of Electronic Science and Technology of China, Sichuan (People's Republic of China)
- Stanford Univ., Stanford, CA (United States)
- Univ. of Electronic Science and Technology of China, Sichuan (People's Republic of China)
- Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
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.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1470937
- Journal Information:
- Nano Letters, Journal Name: Nano Letters Journal Issue: 6 Vol. 18; ISSN 1530-6984
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Role of Scaffold Architecture and Excess Surface Polymer Layers in a 3D-Interconnected Ceramic/Polymer Composite Electrolyte
Critical role of polymer-ceramic ion exchange for high conductivity composite electrolytes
Journal Article
·
Thu Mar 02 23:00:00 EST 2023
· Advanced Energy Materials
·
OSTI ID:1960700
Critical role of polymer-ceramic ion exchange for high conductivity composite electrolytes
Journal Article
·
Wed Jun 25 00:00:00 EDT 2025
· Solid State Ionics
·
OSTI ID:2584496