Heterostructure Engineering for Aluminum‐Ion Batteries: Mechanism, Challenge, and Perspective

Author:

Yang Cheng1,Liang Zixin1,Dong Bo1,Guo Yaokun1,Xie Weibin1,Chen Mingzhe1,Zhang Kai2ORCID,Zhou Limin1ORCID

Affiliation:

1. School of Energy and Power Engineering Nanjing University of Science and technology Nanjing 210094 P. R. China

2. State Key Laboratory of Advanced Chemical Power Sources Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) College of Chemistry Nankai University Tianjin 300071 P. R. China

Abstract

AbstractBenefiting from high volumetric capacity, environmental friendliness, and high safety, aluminum‐ion batteries (AIBs) are considered to be promising battery system among emerging electrochemical energy storage technologies. As an important component of AIBs, the cathode material is crucial to decide the energy density and cycle life of AIBs. However, single‐component cathode materials are unable to achieve a balance between cycling stability and rate performance. In recent years, research on heterostructure cathode materials has gained significant attention in AIBs. By harnessing the synergistic effects of heterostructure, the shortcomings of individual materials can be overcome, contributing to improved conductivity and structural stability. This review offers a detailed insight into the Al‐storage mechanism of heterostructure cathodes, and provides an overview of the current research progresses on heterostructure cathode materials for AIBs. Starting from the relationship between the microstructure and electrochemical performance of heterostructure materials, the different structure design strategies are elaborated. Besides, the challenges faced by heterostructure are summarized, and their potential impact on the future of the energy storage industry is anticipated. This review provides the guidelines for the future research of heterostructure as cathode materials for AIBs.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

Fundamental Research Funds for the Central Universities

Publisher

Wiley

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