The pairing of an aluminum anode with a cathode of high energy and power density determines the future of aluminum‐ion battery technology. The question is—“Is there any suitable cathode material which is capable of storing sufficiently large amount of trivalent aluminum‐ions at relatively higher operating potential?”. Graphene emerges to be a fitting answer. Graphene emerged in the research arena of aluminum‐ion battery merely three years ago. However, research progress in this front has since been tremendous. Outperforming all other known cathode materials, several remarkable breakthroughs have been made with graphene, in offering extraordinary energy density, power density, cycle life, thermal stability, safety and flexibility. The future of the Al–graphene couple is indeed bright. This Minireview highlights the electrochemical performances, advantages and challenges of using graphene as the cathode in aluminum‐ion batteries in conjugation with chloroaluminate based electrolytes. Additionally, the complex mechanism of charge storage in graphene is also elaborated.

中文翻译：

---

石墨烯：铝离子电池的阴极材料选择

铝阳极与高能量和高功率密度阴极的搭配决定了铝离子电池技术的未来。问题是：“是否有合适的阴极材料能够以相对较高的工作电势存储足够数量的三价铝离子？”。石墨烯似乎是一个合适的答案。石墨烯仅在三年前才出现在铝离子电池的研究领域。但是，此方面的研究进展巨大。在提供非凡的能量密度，功率密度，循环寿命，热稳定性，安全性和柔韧性方面，石墨烯已经超越了所有其他已知的阴极材料，并取得了几项显着的突破。Al-石墨烯对的未来确实是光明的。这份Minireview重点介绍了电化学性能，在铝离子电池中与基于铝铝酸盐的电解质共轭使用石墨烯作为阴极的优点和挑战。此外，还详细阐述了石墨烯中电荷存储的复杂机制。