Oxygen-Deficient TiO2-δ Nanoparticles via Hydrogen Reduction for High Rate Capability Lithium Batteries

被引：381

作者：

Shin, Ji-Yong ^{[1
]}

Joo, Jong Hoon ^{[1
]}

Samuelis, Dominik ^{[1
]}

Maier, Joachim ^{[1
]}

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

CHEMISTRY OF MATERIALS | 2012年 / 24卷 / 03期

关键词：

lithium batteries; TiO2; hydrogen reduction; defects; lithium diffusion; TIO2; ANATASE; INTERCALATION PROCESSES; CHEMICAL DIFFUSION; DEFECT CHEMISTRY; STORAGE; LIFEPO4; INSERTION; ELECTRODE; PERFORMANCE; TRANSPORT;

D O I：

10.1021/cm2031009

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：

The interest of exploring environmentally benign and safe anode materials for lithium batteries has led to TiO2 (anatase) nanostructures as promising candidates. However, the poor chemical diffusion of lithium in the materials still limits the rate capability. We report on the high rate capability of lithium storage with oxygen-deficient TiO2-delta nanoparticles prepared by hydrogen reduction. A systematic study on the effect of electronic charge carrier concentration on the overall electrochemical lithium storage performance revealed that well-balanced Li+/e(-) transport is the key factor for high-performance TiO2 anodes.

引用

页码：543 / 551

页数：9

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