物理
物理
물리
2014年
8期
543-550
,共8页
扫描透射电子显微术%电极材料%原子结构%电化学反应机理
掃描透射電子顯微術%電極材料%原子結構%電化學反應機理
소묘투사전자현미술%전겁재료%원자결구%전화학반응궤리
scanning transmission electron microscopy%electrode materials%atomic-scale structure%electrochemical reaction mechanism
材料显微结构与性能之间的关联是材料科学领域的基本问题。球差校正透射电子显微镜的成功问世为表征材料原子尺度精细结构、揭示材料结构和性能的关系提供了重要机遇。文章主要从作者自身的研究工作出发,综述了原子分辨球差校正扫描透射成像技术在研究锂离子电池电极材料不同电化学状态下的表/界面结构及其反应机理方面的应用,探讨了电极材料原子尺度结构与性能之间的内在联系。
材料顯微結構與性能之間的關聯是材料科學領域的基本問題。毬差校正透射電子顯微鏡的成功問世為錶徵材料原子呎度精細結構、揭示材料結構和性能的關繫提供瞭重要機遇。文章主要從作者自身的研究工作齣髮,綜述瞭原子分辨毬差校正掃描透射成像技術在研究鋰離子電池電極材料不同電化學狀態下的錶/界麵結構及其反應機理方麵的應用,探討瞭電極材料原子呎度結構與性能之間的內在聯繫。
재료현미결구여성능지간적관련시재료과학영역적기본문제。구차교정투사전자현미경적성공문세위표정재료원자척도정세결구、게시재료결구화성능적관계제공료중요궤우。문장주요종작자자신적연구공작출발,종술료원자분변구차교정소묘투사성상기술재연구리리자전지전겁재료불동전화학상태하적표/계면결구급기반응궤리방면적응용,탐토료전겁재료원자척도결구여성능지간적내재련계。
The correlation between microstructure and properties is a fundamental issue in material science. The success of aberration-corrected transmission electron microscopy has provid-ed an unprecedented opportunity to characterize the atomic-scale structure of materials and to eluci-date the relationship between microstructure and performance. In this paper, we review the recent progress in investigations of the surface and/or interface structure of electrode materials after elec-trochemical cycling and their reaction mechanisms through atomic-resolved spherical aberra-tion-corrected scanning transmission electron microscopy. The inherent correlation between the atomic-scale structure of electrode materials and their performance is also discussed.