| Autor: |
Yixiu Cui, Ling Xu, Shiping Ma, Yu Zhao, Yong Cao, Kaiyuan Wei, Jian Li, Yanhua Cui |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
RSC Advances. 10:5462-5467 |
| ISSN: |
2046-2069 |
| Popis: |
Blending with poly(vinyl alcohol) (PVA) and poly(oxyphenylene sulfone) (PESf) has been investigated to improve the properties of a polymer electrolyte based on a poly(ethylene oxide) (PEO) matrix. The composite electrolyte shows a high ionic conductivity of 0.83 × 10−3 S cm−1 at 60 °C due to the significant inhibition of crystallization caused by the synergistic effects of PVA and PESf. The symmetrical cell Li/CPE/Li is continuously operated for at least 200 hours at a current density of 0.1 mA cm−2 without the enhancement in the polarization potential. In addition, the all-solid-state LiFePO4/CPE/Li cells exhibit small hysteresis potential (about 0.10 V), good cycle stability and excellent reversible capacity (126 mA h g−1 after 100 cycles). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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