Amphiphilic carbonaceous material modified graphite as anode material for lithium-ion batteries

被引：27

作者：

Wang, Jin ^{[1
]}

Chen, Mingming ^{[1
]}

Wang, Chengyang ^{[1
]}

Hu, Buqian ^{[1
]}

Zheng, Jiaming ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300072, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 21期

关键词：

Anode material; Amphiphilic carbonaceous material; Surfaces; Electrical properties; COATED GRAPHITE;

D O I：

10.1016/j.matlet.2010.07.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Artificial graphite powder was coated by amphiphilic carbonaceous material (ACM) in aqueous solutions. SEM and XRD results show that the surface defects and edge sites of original graphite are uniformly covered by the ACM coating layer after modification. The overall characteristics of graphite, however, are not severely changed. Electrochemical measurements were then carried out to evaluate the anode performances of samples in lithium-ion batteries. The modified graphite shows an initial efficiency up to 90.6% and discharge capacitance of 366.4 mAhg(-1). Meanwhile, its capacitance remains as high as 350 mAhr(-1) after 30 cycles charge/discharge tests, evincing good cyclic performance. Compared with conventional methods, the abovementioned non-organic solvent coating presents an economic, facile, and green pathway for graphite mass utilisation as an alternative anode material in lithium-ion batteries. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2281 / 2283

页数：3

共 13 条

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