锂氧电池的双功能氧电催化剂,Batteries & Supercaps

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锂氧电池的双功能氧电催化剂
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2019-02-06 , DOI: 10.1002/batt.201800127
Youngjoon Bae _{1,

2} , Hyeokjun Park _{1,

2} , Youngmin Ko _{1,

2} , Hyunah Kim _{1,

2} , Sung Kwan Park ₁ , Kisuk Kang _{1,

2}

Affiliation

锂氧电池由于其极高的理论能量密度而在过去的几十年中引起了极大的关注，它有可能超过当前最先进的锂离子电池的能量密度。但是，锂氧电池在氧还原反应（ORR，放电）和氧放出反应（OER，充电）中均表现出较差的循环稳定性，相对较低的功率容量和明显较大的极化。为了解决这些问题，因此引入了用于水性和非水性锂氧电池的各种催化剂，并且双功能催化剂的一些最新进展可以同时促进ORR和OER，从而在整体电池性能方面取得了巨大进步。在此处，基于目前对锂氧电池双功能催化剂工作机理的了解，我们对它们的最新进展进行了简要概述。钙钛矿型，尖晶石型和非氧化物型催化剂及其在水性锂氧电池中的应用进行了综述。还介绍了最近报道的非水锂氧电池中的双功能催化剂，并进一步讨论了固体和可溶性催化剂的不同作用。最后，我们通过讨论用于未来锂氧电池的高效双功能催化剂的设计前景和前景进行了总结。还介绍了最近报道的非水锂氧电池中的双功能催化剂，并进一步讨论了固体和可溶性催化剂的不同作用。最后，我们通过对未来锂氧电池高效双功能催化剂的设计前景和前景进行了总结。还介绍了最近报道的非水锂氧电池中的双功能催化剂，并进一步讨论了固体和可溶性催化剂的不同作用。最后，我们通过讨论用于未来锂氧电池的高效双功能催化剂的设计前景和前景进行了总结。

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Bifunctional Oxygen Electrocatalysts for Lithium−Oxygen Batteries

Lithium−oxygen batteries have attracted great attention over the last few decades owing to their extraordinarily high theoretical energy density, which can potentially exceed that of current state‐of‐art lithium‐ion batteries. However, lithium−oxygen batteries exhibit poor cycle stability, relatively low power capability and significantly large polarizations for both, the oxygen reduction reaction (ORR, discharge) and the oxygen evolution reaction (OER, charge). To address these issues, various catalysts for aqueous and non‐aqueous lithium−oxygen batteries have thus been introduced, and some recent developments of bifunctional catalysts could simultaneously facilitate the ORR and OER, leading to great advancements in the overall battery performance. Herein, we present a brief overview of recent progress in the development of bifunctional catalysts for lithium−oxygen batteries based on the current understanding of their working mechanism. Perovskite‐type, spinel‐type, and non‐oxide catalysts and their use in aqueous lithium−oxygen batteries are reviewed. Recently reported bifunctional catalysts in non‐aqueous lithium−oxygen batteries are also introduced, and the different roles of solid‐ and soluble‐type catalysts are further discussed. Finally, we conclude by deliberating the design prospects and perspectives for efficient bifunctional catalysts for future lithium−oxygen batteries.

更新日期：2019-02-06

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