Jayasree Silpasree S, Murali Aswathy S, Nair Shantikumar, Santhanagopalan Dhamodaran
Centre for Nanosciences, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi-682041, India.
Nanotechnology. 2022 Jun 14;33(35). doi: 10.1088/1361-6528/ac67ac.
Lithium ion batteries (LIB) are the domain power house that gratifies the growing energy needs of the modern society. Statistical records highlight the future demand of LIB for transportation and other high energy applications. Cathodes play a significant role in enhancement of electrochemical performance of a battery, especially in terms of energy density. Therefore, numerous innovative studies have been reported for the development of new cathode materials as well as improving the performance of existing ones. Literature designate stable cathode-electrolyte interface (CEI) is vital for safe and prolonged high performance of LIBs at different cycling conditions. Considering the context, many groups shed light on stabilizing the CEI with different strategies like surface coating, surface doping and electrolyte modulation. Local temperature variation across the globe is another major factor that influences the application and deployment of LIB chemistries. In this review, we discuss the importance of nano-scale engineering strategies on different class of cathode materials for their improved CEI and hence their low and high temperature performances. Based on the literature reviewed, the best nano-scale engineering strategies investigated for each cathode material have been identified and described. Finally, we discuss the advantages, limitations and future directions for enabling high performance cathode materials for a wide range of applications.
锂离子电池（LIB）是满足现代社会不断增长的能源需求的领域动力源。统计记录突出了LIB在交通运输和其他高能量应用方面的未来需求。阴极在提高电池的电化学性能方面起着重要作用，特别是在能量密度方面。因此，已经报道了许多关于开发新型阴极材料以及改善现有阴极材料性能的创新性研究。文献表明，稳定的阴极-电解质界面（CEI）对于LIB在不同循环条件下的安全和长期高性能至关重要。考虑到这一背景，许多研究团队通过表面涂层、表面掺杂和电解质调制等不同策略来阐明稳定CEI的方法。全球各地的局部温度变化是影响LIB化学应用和部署的另一个主要因素。在这篇综述中，我们讨论了纳米尺度工程策略对不同类型阴极材料的重要性，以改善其CEI，从而提高其低温和高温性能。基于所综述的文献，已经确定并描述了针对每种阴极材料研究的最佳纳米尺度工程策略。最后，我们讨论了实现适用于广泛应用的高性能阴极材料的优势、局限性和未来方向。
