Rate capability of lithium intercalation into nano-porous graphitized carbons

被引：33

作者：

Yamada, Hirotoshi ^{[1
]}

Watanabe, Yuko ^{[2
]}

Moriguchi, Isamu ^{[1
]}

Kudo, Tetsuichi ^{[3
]}

机构：

[1] Nagasaki Univ, Fac Engn, Nagasaki 8528521, Japan

[2] Nagasaki Univ, Grad Sch Sci & Technol, Nagasaki 8528521, Japan

[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

来源：

SOLID STATE IONICS | 2008年 / 179卷 / 27-32期

关键词：

lithium ion battery; porous carbon; graphite;

D O I：

10.1016/j.ssi.2008.02.022

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：

Nano-porous graphitized carbons were successfully prepared by using mono-dispersed SiO2 Colloidal crystal as a template and mesophase pitch as a carbon source with final heat treatment temperatures (HTT) of 1000-2500 degrees C. Rate capability of lithium intercalation/de-intercalation of the nano-porous graphitized carbons was investigated. 35-60% of capacities were retained when the current density was increased from 37.2 mA g(-1) to 3 72 mA g(-1). Electrochemical impedance spectra indicated that formation of SEI layers caused increased polarization. (c) 2008 Elsevier B.V. All rights reserved.

引用

收藏

页码：1706 / 1709

页数：4

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