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Hetero-nanostructured materials for high-power lithium ion batteries
Journal of Colloid and Interface Science ( IF 9.9 ) Pub Date : 2018-06-15 , DOI: 10.1016/j.jcis.2018.06.025
Jaewon Lee , Yue Wu , Zhenbo Peng

The development of high technology electrical devices increased the importance of higher power density or higher capacity at high current density. Especially, rapid charge/discharge issues remain problematic for electric vehicle commercialization. After extensive investigation, researchers introduced hetero-nanostructured materials to the field of lithium ion batteries (LIBs), aiming to enhance the power density or improve the capacity at high current density and life cycle capability. Hetero-nanostructured materials consist of current collectors and directly attached active nanomaterials. Carbon, carbon nanotube (CNT), graphene, Nickel (Ni), Copper (Cu) and Aluminum (Al) were used for current collector, aiming to improve the electron transfer and the cyclability, due to high electrical conductivity and superior buffering effects. Also, Hetero-nanostructure can produce a favorable lithium diffusion condition by creating a lithium diffusion pathway. This article presents an explanation of important factors for high power density or high capacity at high current density. It summarizes the capacity of electrode materials at high current density, including structural descriptions and material types.



中文翻译:

大功率锂离子电池的异质纳米结构材料

高科技电气设备的发展增加了在高电流密度下更高功率密度或更高容量的重要性。尤其是,快速充电/放电问题对于电动车辆的商业化仍然是成问题的。经过广泛研究,研究人员将异质纳米结构材料引入了锂离子电池(LIB)领域,旨在提高功率密度或提高高电流密度和寿命周期能力下的容量。异质纳米结构材料由集电器和直接附着的活性纳米材料组成。碳,碳纳米管(CNT),石墨烯,镍(Ni),铜(Cu)和铝(Al)被用作集流体,由于其高电导率和出色的缓冲效果,旨在改善电子转移和循环能力。还,杂纳米结构可通过产生锂扩散路径而产生有利的锂扩散条件。本文介绍了在高电流密度下实现高功率密度或高容量的重要因素。它总结了电极材料在高电流密度下的容量,包括结构说明和材料类型。

更新日期:2018-06-15
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