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首页> 外文期刊>RSC Advances >Scalable production of transition metal disulphide/graphite nanoflake composites for high-performance lithium storage
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Scalable production of transition metal disulphide/graphite nanoflake composites for high-performance lithium storage

机译：可扩展生产用于高性能锂存储的过渡金属二硫化物/石墨纳米片复合材料

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摘要

A facile, industrially viable strategy is proposed for the scalable production of transition metal disulphide/graphite nanoflake composites by a combination of ball milling and short-time sonication. The experimental conditions are mild and energy efficient, and the yields are fairly high. This strategy can produce larger MoS2 and WS2 nanoflakes with more lithium storage sites than the conventional, longtime sonication method. Besides, the obtained graphite nanoflakes have a higher degree of lattice integrity than reduced graphene oxide that is structurally permanently damaged, and can thus serve as a high-efficiency conductive additive. A prominent synergy is witnessed between the excellent electrochemical performances of the MoS2 and WS2 nanoflakes and the high electronic conductivity of the graphite nanoflakes. The resulting MoS2 and WS2/graphite nanoflake composites exhibit superior lithium storage capacities, cycling stabilities and rate capabilities, thus providing a basis for developing high-performance anodes of next-generation lithium-ion batteries.
机译：提出了一种可行的，工业可行的策略，通过球磨和短时间超声处理的组合，可规模化生产过渡金属二硫化物/石墨纳米薄片复合材料。实验条件温和且节能，并且产率很高。与常规的长时间超声处理方法相比，该策略可以生产更大的MoS2和WS2纳米薄片，并具有更多的锂存储位。此外，所获得的石墨纳米薄片比在结构上永久损坏的还原的氧化石墨烯具有更高的晶格完整性，因此可以用作高效导电添加剂。在MoS2和WS2纳米薄片的出色电化学性能与石墨纳米薄片的高电子电导率之间可以看到显着的协同作用。所得的MoS2和WS2 /石墨纳米薄片复合材料具有出色的锂存储容量，循环稳定性和倍率性能，从而为开发下一代锂离子电池的高性能负极提供了基础。

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