2023-08-082024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/672038鑑於金屬-空氣電池須開放式結構以允許相關氣體流通，故金屬-空氣電池可能會對液態電解液(LE)產生滲漏問題。由於用於製備LE之有機溶劑之揮發(即使溶劑具低揮發性)會導致電解液乾燥，進而降低循環壽命並增加電解質消耗。此外，液態電解液之易燃性與毒性嚴重阻礙可充電非水金屬-空氣電池之實際應用。 於此種情況下，我們期望開發基於聚合物之固態/準固態電解質，用於可充電非水鎂氧氣電池。我們主要專注於兩種廣泛使用之聚合物：聚乙烯氧化物(PEO)與聚偏氟乙烯共己氟丙烯(PVDF-HFP)作為主要聚合物基質。一般而言，鹽類中之金屬離子與聚合物片段進行相互作用，並經由片段內部與片段間跳躍機制進行離子傳輸。 As an open architecture of metal-air batteries is needed to allow pertinent gas to flow, the metal-air batteries can cause leakage to the liquid electrolytes (LEs). The evaporation of the organic solvents used to make the LEs (even if the solvent has low volatility) causes the drying of the electrolyte, resulting in a decrease in the cycle life and electrolyte consumption. Besides, the flammability and toxicity of the liquid electrolytes severely hinder the practical application of rechargeable nonaqueous metal-air batteries. In this scenario, we look forward to developing polymer-based solid-state/quasi-solid-state electrolytes for rechargeable nonaqueous Mg–O2 batteries. Primarily we are focusing on two of the widely used polymers— polyethylene oxide (PEO) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) as the host polymers. Generally, the metal ions in the salt interact with the polymer segment, and ion transport occurs through intrachain and interchain hopping mechanisms.鎂空氣電池;能源儲存;固態電池;半固態電池;Mg-air battery; Energy storage; Solid-state battery; Quasi-solid-state battery