【摘要】：由于高的理論能量密度,鋰空氣電池被看作最有前景的能源存儲(chǔ)系統(tǒng)之一。但是,目前仍有許多因素制約著它的發(fā)展,比如大的極化電壓、電解液和空氣電極的不穩(wěn)定性,以及由此帶來的差的循環(huán)穩(wěn)定性等。此前,研究人員重點(diǎn)研究了各種固態(tài)電催化劑來解決上述問題。但由于固態(tài)催化劑自身的特性,它并不能解決空氣電極的表面鈍化以及孔隙的堵塞問題,因此人們開始轉(zhuǎn)向均相催化劑。從金屬空氣電池的結(jié)構(gòu)來看,由于正極的有效空間有限,即使均相催化劑也不能從根本上解決正極的鈍化和堵塞問題。因此,本課題組設(shè)計(jì)了一種新的鋰空氣電池裝置——氧化還原液流鋰空氣電池,來徹底解決上述的兩個(gè)問題。在此文最后,將根據(jù)目前基礎(chǔ)研究和實(shí)際應(yīng)用之間的差距,簡要討論未來鋰空氣電池的發(fā)展。
[Abstract]:Due to its high theoretical energy density, lithium-air batteries are regarded as one of the most promising energy storage systems. However, there are still many factors restricting its development, such as the large polarization voltage, the instability of electrolyte and air electrode, and the resulting poor cycle stability. Previously, researchers have focused on various solid-state electrocatalysts to solve these problems. However, because of the characteristics of solid catalyst, it can not solve the problems of surface passivation and pore plugging of air electrode, so people begin to turn to homogeneous catalyst. From the point of view of the structure of metal air cell, even homogeneous catalyst can not solve the problem of passivation and blockage of positive electrode fundamentally because of the limited effective space of positive electrode. Therefore, a new lithium-air battery device, redox liquid lithium-air battery, was designed to solve the above two problems. Finally, the future development of lithium air batteries will be briefly discussed according to the gap between current basic research and practical applications.
【作者單位】： 新加坡國立大學(xué)材料科學(xué)與工程系;
【基金】：新加坡國立研究基金會(huì)(NRF-CRP10-2012-06)
【分類號(hào)】：TM911.41

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