A Study on High-Rate Performance of Graphite Nanostructures Produced by Ball Milling as Anode for Lithium-Ion Batteries

被引：11

作者：

Ahmadabadi, Vahide Ghanooni ^{[1
]}

Rahman, Md Mokhlesur ^{[1
]}

Chen, Ying ^{[1
]}

机构：

[1] Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia

来源：

MICROMACHINES | 2023年 / 14卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

lithium-ion batteries; anode; graphite; specific surface area; rate capability; ELECTROCHEMICAL PERFORMANCE; NEGATIVE ELECTRODES; NATURAL GRAPHITE; RAMAN-SPECTRA; INSERTION; STORAGE;

D O I：

10.3390/mi14010191

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Graphite, with appealing features such as good stability, high electrical conductivity, and natural abundance, is still the main commercial anode material for lithium-ion batteries. The charge-discharge rate capability of graphite anodes is not significant for the development of mobile devices and electric vehicles. Therefore, the feasibility investigation of the rate capability enhancement of graphite by manipulating the structure is worthwhile and of interest. In this study, an effective ball-milling process has been set up by which graphite nanostructures with a high surface area are produced. An in-depth investigation into the effect of ball milling on graphite structure as well as electrochemical performance, particularly rate capability, is conducted. Here, we report that graphite nanoflakes with 350 m(2) g(-1) surface area deliver retained capacity of similar to 75 mAh g(-1) at 10 C (1 C = 372 mA g(-1)). Finally, the Li+ surface-storage mechanism is recognised by associating the structural characteristics with electrochemical properties.

引用

页数：14

共 40 条

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