首页|Functionally gradient materials for sustainable and high-energy rechargeable lithium batteries:Design principles,progress,and perspectives

Functionally gradient materials for sustainable and high-energy rechargeable lithium batteries:Design principles,progress,and perspectives

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Rechargeable lithium batteries with high-capacity cathodes/anodes promise high energy densities for next-generation electrochemical energy storage.However,the associated limitations at various scales greatly hinder their practical applications.Functional gradient material(FGM)design endows the electrode mate-rials with property gradient,thus providing great opportunities to address the kinetics and stability obsta-cles.To date,still no review or perspective has covered recent advancements in gradient design at multiple scales for boosting lithium battery performances.To fill this void,this work provides a timely and compre-hensive overview of this exciting and sustainable research field.We begin by overviewing the fundamental features of FGM and the rationales of gradient design for improved electrochemical performance.Then,we comprehensively review FGM design for rechargeable lithium batteries at various scales,including natural or artificial solid electrolyte interphase(SEI)at the nanoscale,micrometer-scale electrode particles,and macroscale electrode films.The link between gradient structure design and improved electrochemical per-formance is particularly highlighted.The most recent research into constructing novel functional gradients,such as valence and temperature gradients,has also been explored.Finally,we discussed the current con-straints and future scope of FGM in rechargeable lithium batteries,aiming to inspire the development of novel FGM for next-generation high-performance lithium batteries.

Rechargeable lithium batteryFunctional gradient materialHigh energy densityLong cycle lifeReview

Jiaojiao Deng、Xiuyun Ren、Hai Lin、Liang Hu、Yu Bai、Xiaoliang Yu、Jinhan Mo、Qianling Zhang、Feiyu Kang、Baohua Li

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Graphene Composite Research Center,College of Chemistry and Environmental Engineering,Shenzhen University,Shenzhen 518060,Guangdong,China

Department of Mechanical Engineering and Research Institute for Smart Energy,The Hong Kong Polytechnic University,Hong Kong 999077,China

Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center,Tsinghua Shenzhen International Graduate School,Shenzhen 518055,Guangdong,China

College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,Guangdong,China

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2024

10.1016/j.jechem.2024.07.062

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.99(12)