基于均相氧催化反应的锂空气电池研究进展
发布时间：2018-07-29 06:46
【摘要】：由于高的理论能量密度,锂空气电池被看作最有前景的能源存储系统之一。但是,目前仍有许多因素制约着它的发展,比如大的极化电压、电解液和空气电极的不稳定性,以及由此带来的差的循环稳定性等。此前,研究人员重点研究了各种固态电催化剂来解决上述问题。但由于固态催化剂自身的特性,它并不能解决空气电极的表面钝化以及孔隙的堵塞问题,因此人们开始转向均相催化剂。从金属空气电池的结构来看,由于正极的有效空间有限,即使均相催化剂也不能从根本上解决正极的钝化和堵塞问题。因此,本课题组设计了一种新的锂空气电池装置——氧化还原液流锂空气电池,来彻底解决上述的两个问题。在此文最后,将根据目前基础研究和实际应用之间的差距,简要讨论未来锂空气电池的发展。
[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.
【作者单位】： 新加坡国立大学材料科学与工程系;
【基金】：新加坡国立研究基金会(NRF-CRP10-2012-06)
【分类号】：TM911.41
本文编号：2151863
[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.
【作者单位】： 新加坡国立大学材料科学与工程系;
【基金】：新加坡国立研究基金会(NRF-CRP10-2012-06)
【分类号】：TM911.41
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