Rechargeable solid-state lithium metal batteries with vertically aligned ceramic nanoparticle/polymer composite electrolyte
| Autor: | Martin Dontigny, Changmin Shi, Aijun Li, Karim Zaghib, Yibin Li, Boyu Qie, Yuan Yang, Yanke Fu, Qian Cheng, Haowei Zhai, Tianwei Jin, Xiaodong He, James Borovilas, Bingqing Xu, Shanyi Du, Xue Wang, Xiangbiao Liao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment Composite number Nanoparticle 02 engineering and technology Polymer Electrolyte Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium Fast ion conductor Ionic conductivity General Materials Science Ceramic Electrical and Electronic Engineering Composite material 0210 nano-technology |
| Zdroj: | Nano Energy. 60:205-212 |
| ISSN: | 2211-2855 |
| DOI: | 10.1016/j.nanoen.2019.03.051 |
| Popis: | Composite solid electrolytes are attractive as they combine the high ionic conductivity of ceramic nanoparticles and the excellent mechanical properties of polymer electrolytes. Vertically aligned ceramic nanoparticles in the polymer matrix represent an ideal structure for maximizing ionic conductivity of composite electrolytes. The ice-templating method was used to build rechargeable solid-state lithium metal batteries with a vertically aligned ceramic/polymer composite electrolyte composed of high ionic conductivity Li1.5Al0.5Ge1.5(PO4)3 (LAGP) and polyethylene oxide (PEO) polymer. The vertical LAGP walls provide continuous channels for fast ionic transport, while the PEO matrix renders the composite electrolyte flexible. This solid-state composite electrolyte has a conductivity of 1.67 × 10−4 S cm−1 at room temperature and 1.11 × 10−3 S cm−1 at 60 °C. LiFePO4 (LFP)/vertically aligned LAGP- PEO/Li full cells were also developed with a high capacity retention of 93.3% after 300 cycles. This study demonstrates the successful application of vertically aligned ceramic/polymer composite electrolytes for solid-state batteries with high performance. |
| Databáze: | OpenAIRE |
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