Coin-Cell-Based In Situ Characterization Techniques for Li-Ion Batteries

Frontiers in Energy Research

Yong Chen¹  De Li²  Liao Zhang³  Chaoqun Niu³  Jiangtao Huang³  Zhi Du³  Yanyu Qu³  Xiaolong Guo³ 

[1] Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, China;National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, China;State Key Laboratory on Marine Resource Utilization in South China Sea, Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources, College of Materials Science and Chemical Engineering, Hainan University, Haikou, China;

关键词: Li-ion battery;    coin cell;    in situ X-ray diffraction;    in situ Raman;    Li4Ti5O12;   

DOI  :  10.3389/fenrg.2018.00016

来源: DOAJ

【 摘 要 】

In situ characterization techniques have made a significant progress in recent years, especially in the electrochemical field. For Li-ion batteries, in situ characterization techniques refer to using analytical equipment to directly characterize electrode materials during electrochemical measurements. At present, most in situ batteries are developed from commercial simulated batteries, of which the cost is very high and the cycle life is quite short. In this work, two kinds of coin-cell-based in situ batteries were designed as in situ X-ray diffraction (XRD) and Raman coin cells which exhibit many admirable advantages, such as low cost, long cycle life, easy to carry, and so on. In the designing process, in situ XRD and Raman coin cell have been tested with two electrode materials of Li4Ti5O12 and LiFePO4, and we solved many technical problems of assembling and measuring these two kinds of cells. Finally, in situ coin cells could be improved to investigate a variety of electrode materials, and this technique would arouse wide interests in the electrochemical field.

【 授权许可】

Unknown