Can Hybrid Na-Air Batteries Outperform Nonaqueous Na-O2 Batteries?,Advanced Science

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Can Hybrid Na-Air Batteries Outperform Nonaqueous Na-O2 Batteries?
Advanced Science ( IF 14.3 ) Pub Date : 2020-01-19 , DOI: 10.1002/advs.201902866
Ziyauddin Khan ₁ , Mikhail Vagin ₁ , Xavier Crispin ₁

Affiliation

In recent years, there has been an upsurge in the study of novel and alternative energy storage devices beyond lithium-based systems due to the exponential increase in price of lithium. Sodium (Na) metal-based batteries can be a possible alternative to lithium-based batteries due to the similar electrochemical voltage of Na and Li together with the thousand times higher natural abundance of Na compared to Li. Though two different kinds of Na-O2 batteries have been studied specifically based on electrolytes until now, very recently, a hybrid Na-air cell has shown distinctive advantage over nonaqueous cell systems. Hybrid Na-air batteries provide a fundamental advantage due to the formation of highly soluble discharge product (sodium hydroxide) which leads to low overpotentials for charge and discharge processes, high electrical energy efficiency, and good cyclic stability. Herein, the current status and challenges associated with hybrid Na-air batteries are reported. Also, a brief description of nonaqueous Na-O2 batteries and its close competition with hybrid Na-air batteries are provided.

中文翻译：

混合钠-空气电池的性能能否优于非水钠-O2电池？

近年来，由于锂价格呈指数级上涨，人们对锂基系统之外的新型替代能源存储设备的研究出现了热潮。钠（Na）金属电池可以成为锂电池的可能替代品，因为Na和Li具有相似的电化学电压，并且Na的自然丰度比Li高出数千倍。尽管迄今为止已经专门研究了基于电解质的两种不同类型的Na-O2电池，但最近，混合Na-空气电池显示出优于非水电池系统的独特优势。混合钠-空气电池由于形成高度可溶的放电产物（氢氧化钠）而提供了根本优势，从而导致充电和放电过程的低过电势、高电能效率和良好的循环稳定性。本文报告了混合钠-空气电池的现状和挑战。此外，还简要介绍了非水Na-O2电池及其与混合Na-空气电池的激烈竞争。

更新日期：2020-01-21

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