文章信息/Info

Title:

Recent Progress of in situ Transmission Electron Microscopy on Electrochemical Energy Storage

文章編號:

1674-3962(2020)07-0559-17

作者:

蘇慶梅1; 杜高輝1; 郭俊杰2; 馬淑芳1; 余愿1; 許并社1; 2

（1. 陜西科技大學 材料原子·分子科學研究所, 陜西 西安 710016）（2. 太原理工大學 新材料界面科學與工程教育部重點實驗室，山西 太原 030024）

Author(s):

SU Qingmei1;  DU Gaohui1;  GUO Junjie2;  MA Shufang1;  YU Yuan1;  XU Bingshe1; 2

(1. Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi‘an 710016, China) (2. Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China)

關鍵詞:

原位透射電鏡; 電化學儲能; 電極材料; 電化學行為; 儲能機制

Keywords:

in situ TEM;  electrochemical energy storage;  electrode materials;  electrochemical behavior;  energy storage mechanism

分類號:

TN16；TM912

DOI:

10.7502/j.issn.1674-3962.202006027

文獻標志碼:

A

摘要:

理解電極材料的微觀電化學行為、微觀結構演變和反應機理，對開發高性能電化學儲能材料具有重要意義，并有望為優化高性能電化學儲能器件的設計提供幫助。在透射電子顯微鏡（TEM）中構建微型電池，可以直接觀察在電池工作狀態下電極材料的形貌、成分和微觀結構演變，從動力學角度理解電極材料轉化和存儲的過程和機制，構建電極材料微觀結構�埠暧^性能的構效關系。綜述了近年來利用原位TEM研究鋰離子電池重要電極材料、鋰硫電池和鋰�部諝怆姵氐淖钚卵芯窟M展，討論并展望了原位TEM技術在電化學儲能領域的未來發展趨勢。原位TEM技術對于研究理解在電池工作狀態下電極材料的電化學反應行為和機理具有重要的價值，對于深入理解電池失效過程和設計高性能電池具有重要的指導意義。

Abstract:

Understanding the microelectrochemical behavior, microstructure evolution and reaction mechanism of electrode materials is of great significance to explore high-performance electrochemical energy storage materials, and is expected to optimize the design of high-performance electrochemical energy storage devices. By constructing a micro-battery in transmission electron microscope (TEM), the morphology, composition and microstructure evolution of electrode materials in the working state of the battery can be directly observed, which can help us understand the process and mechanism of electrode material during the conversion and storage process from the viewpoints of dynamics, and construct the relationship between microstructure and macro-performance. In this review, the recent research progress of the important materials of lithium-ion batteries, lithium-sulfur batteries and lithium-air batteries by using in situ TEM techniques are summarized. Finally, perspectives on future directions on the application of in situ TEM in electrochemical energy storage studies are provided. In situ TEM has important research value for understanding the electrochemical reaction behavior and mechanism of electrode materials in the working state of the battery, and has important guiding significance for understanding the failure process of the battery and designing high-performance batteries.