复旦大学晁栋梁团队报道了硫基水电池的电化学和策略。相关研究成果发表于2021年9月12日出版的国际知名学术期刊《美国化学会杂志》。
尽管水性电池因其固有的低成本和高安全性而引起了人们的研究兴趣，但电极材料的容量限制（小于600 mAh g–1）困扰着实际应用。硫基水电池（SAB）具有较高的理论容量（1672 mAh g–1）、兼容的潜力和可承受的成本，引起了越来越多的关注和努力。尽管如此，SABs的潜在电化学仍然不清楚，包括复杂的热力学演化和不足的动力学指标。因此，各种应用系统中的各种不可逆反应意味着SABs的系统复杂性。
该文中，该观点的目的不是简单地汇编最新进展，而是构建一种从理论到应用的方法。从理论上讲，人们已经注意到对水-硫相关电化学的批判性评估，包括基本性质评估、瞬态和稳态分析的动力学指标以及热力学平衡和演化。为了将其付诸实施，协同提出了当前的挑战和有前途的战略。实际上，上述工作用于评估和开发设备规模的应用，包括scilicet流SAB、氧化物SAB和金属SAB。最后，为高能SAB的未来发展提供了化学和工程方面的见解。
附：英文原文
Title: Sulfur-Based Aqueous Batteries: Electrochemistry and Strategies
Author: Jiahao Liu, Wanhai Zhou, Ruizheng Zhao, Zhoudong Yang, Wei Li, Dongliang Chao, Shi-Zhang Qiao, Dongyuan Zhao
Issue&Volume: September 12, 2021
Abstract: While research interest in aqueous batteries has surged due to their intrinsic low cost and high safety, the practical application is plagued by the restrictive capacity (less than 600 mAh g–1) of electrode materials. Sulfur-based aqueous batteries (SABs) feature high theoretical capacity (1672 mAh g–1), compatible potential, and affordable cost, arousing ever-increasing attention and intense efforts. Nonetheless, the underlying electrochemistry of SABs remains unclear, including complicated thermodynamic evolution and insufficient kinetics metrics. Consequently, multifarious irreversible reactions in various application systems imply the systematic complexity of SABs. Herein, rather than simply compiling recent progress, this Perspective aims to construct a theory-to-application methodology. Theoretically, attention has been paid to a critical appraisal of the aqueous-S-related electrochemistry, including fundamental properties evaluation, kinetics metrics with transient and steady-state analyses, and thermodynamic equilibrium and evolution. To put it into practice, current challenges and promising strategies are synergistically proposed. Practically, the above efforts are employed to evaluate and develop the device-scale applications, scilicet flow-SABs, oxide-SABs, and metal-SABs. Last, chemical and engineering insights are rendered collectively for the future development of high-energy SABs.
DOI: 10.1021/jacs.1c06923
Source: https://pubs.acs.org/doi/10.1021/jacs.1c06923
