Raman spectroscopic and structural studies of heat-treated graphites for lithium-ion batteries

被引：20

作者：

Goers, D ^{[1
]}

Buqa, H

Hardwick, L

Wursig, A

Novák, P

机构：

[1] Paul Scherrer Inst, Lab Electrochem, CH-5232 Villigen, Switzerland

[2] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England

来源：

IONICS | 2003年 / 9卷 / 3-4期

关键词：

D O I：

10.1007/BF02375977

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Standard graphite TIMREX(R) SLX 50 was oxidised at 500-800 degreesC under air atmosphere in a muffle and a rotary furnace. Scanning Electron Microscopy (SEM), Raman spectroscopy, and X-Ray Powder Diffraction (XRD) were used to study the changes in surface morphology and crystallinity. The results show a slight increase of the La value and a decrease of the rhombohedral fraction with increased heat-treatment temperature (HTT). XRD measurements show no significant change in La values within the bulk of graphite samples. Above 700 degreesC SEM images of graphite reveals holes and cavities, whereas heat-treatment temperatures below 700 degreesC do not significantly affect graphite materials parameters.

引用

页码：258 / 265

页数：8

共 36 条

[1] Failure and stabilization mechanisms of graphite electrodes [J].

Aurbach, D ;

Levi, MD ;

Levi, E ;

Schechter, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (12) :2195-2206

[2] A study of highly oriented pyrolytic graphite as a model for the graphite anode in Li-ion batteries [J].

Bar-Tow, D ;

Peled, E ;

Burstein, L .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (03) :824-832

[3] XPS studies of graphite electrode materials for lithium ion batteries [J].

Blyth, RIR ;

Buqa, H ;

Netzer, FP ;

Ramsey, MG ;

Besenhard, JO ;

Golob, P ;

Winter, M .

APPLIED SURFACE SCIENCE, 2000, 167 (1-2) :99-106

[4] Surface oxides on carbon and their analysis: a critical assessment [J].

Boehm, HP .

CARBON, 2002, 40 (02) :145-149

[5] Surface modification of graphite anodes by combination of high temperature gas treatment and silylation in nonaqueous solution [J].

Buqa, H ;

Grogger, C ;

Alvarez, MVS ;

Besenhard, JO ;

Winter, M .

JOURNAL OF POWER SOURCES, 2001, 97-8 :126-128

[6] Modified carbons for improved anodes in lithium ion cells [J].

Buqa, H ;

Golob, P ;

Winter, M ;

Besenhard, JO .

JOURNAL OF POWER SOURCES, 2001, 97-8 :122-125

[7] Evaluation of graphite materials as anodes for lithium-ion batteries [J].

Cao, F ;

Barsukov, IV ;

Bang, HJ ;

Zaleski, P ;

Prakash, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (10) :3579-3583

[8]

DAHN JR, 1994, LITHIUM BATTERIES, pCH1

[9]

DRESSELHAUS MS, 1991, ADV PHYS, V30, P290

[10] In situ Raman study of PPP-based disordered carbon as an anode in a Li ion battery [J].

Endo, M ;

Kim, C ;

Karaki, T ;

Fujino, T ;

Matthews, MJ ;

Brown, SDM ;

Dresslhaus, MS .

SYNTHETIC METALS, 1998, 98 (01) :17-24

← 1 2 3 4 →