空心碳半球锂离子电池负极的高倍率性能研究

张光辉; 闫早学; 邹红丽; 沈培康

doi:10.61558/2993-074X.3336

电化学 >

2010 , Vol. 16 >Issue 2: 145 - 150

DOI: https://doi.org/10.61558/2993-074X.3336

研究论文

空心碳半球锂离子电池负极的高倍率性能研究

张光辉 ,
闫早学 ,
邹红丽 ,
沈培康

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中山大学广东省低碳化学和过程节能重点实验室,光电材料与技术国家重点实验室;

收稿日期: 2010-05-28

修回日期: 2010-05-28

网络出版日期: 2010-05-28

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High-Rate Cyclic Properties of Hollow Carbon Hemisphere as Anode Materials for Lithium Ion Batteries

ZHANG Guang-hui ,
YAN Zao-xue ,
ZOU Hong-li ,
SHEN Pei-kang

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( The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province, The State Key Laboratory of Optoelectronic Materials and Technologies,Sun Yat-Sen University, Guangzhou 510275,China

Received date: 2010-05-28

Revised date: 2010-05-28

Online published: 2010-05-28

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摘要

以聚苯乙烯球为模板,通过水热法包裹硬碳层,又用微波法迅速引发聚苯乙烯核裂解的两步反应,制备了高比表面的空心碳半球.采用扫描电镜和透射电镜观察材料形貌,并测试该负极的电化学性能.在高倍率充放电条件下,与石墨、中间相碳微球电极相比,空心碳半球显现出了更高的容量和优异的寿命.

关键词： 空心碳半球; 负极材料; 高倍率充放电; 电极寿命

本文引用格式

张光辉 , 闫早学 , 邹红丽 , 沈培康 . 空心碳半球锂离子电池负极的高倍率性能研究[J]. 电化学, 2010 , 16(2) : 145 -150 . DOI: 10.61558/2993-074X.3336

Abstract

High surface area hollow carbon hemispheres ( HCHs) covered with hard carbon layers have been synthesized by using polystyrene spheres ( PSs) as templates under hydrothermal method combined with the intermittent microwave heating ( IMH) method. The morphologies of the materials are characterized by SEM and TEM. The electrochemical properties of the HCHs are tested. Comparing with graphite and mesocarbon microbeads ( MCMB) ,the HCHs show higher capacity and excellent cyclic life performance.

Key words： hollow carbon hemispheres; Li-ion batteries; anode material; cyclic life

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