Effects of surface modification on the electrochemical performance of pyrolyzed sugar carbons as anode materials for lithium-ion batteries

被引：32

作者：

Fey, GTK ^{[1
]}

Chen, KL

Chang, YC

机构：

[1] Natl Cent Univ, Dept Chem Engn, Chungli 320, Taiwan

[2] Tamkang Univ, Dept Chem Engn, Tamsui 251, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2002年 / 76卷 / 01期

关键词：

surface modification; sugar; carbon; anode materials; H2O2; HNO3; H2SO4; lithium-ion batteries;

D O I：

10.1016/S0254-0584(01)00495-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface of pyrolyzed sugar carbons (PSCs) was treated with H2O2, HNO3, or H2SO4 reagents. Surface modification of these materials improved their electrode performance. FTIR, Raman, C-13 NMR, and X-ray diffraction (XRD) spectroscopic techniques were used to characterize structures of the treated and untreated carbons. The charge/discharge capacity, potential profile, and irreversible capacity loss have been investigated. The correlations between cell capacities, H/C ratios, and Raman vibrational modes are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

共 22 条

[1] REACTION OF OXYGEN WITH GRAPHITE - X-RAY ABSORPTION-SPECTROSCOPY OF CARBONACEOUS MATERIALS [J].