Drozhzhin Oleg A, Tereshchenko Ivan V, Emerich Hermann, Antipov Evgeny V, Abakumov Artem M, Chernyshov Dmitry
Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1, Moscow 119991, Russian Federation.
Swiss-Norwegian Beamlines, European Synchrotron, 71 Rue des Martyrs, Grenoble 38043, France.
J Synchrotron Radiat. 2018 Mar 1;25(Pt 2):468-472. doi: 10.1107/S1600577517017489. Epub 2018 Feb 6.
A new multi-purpose operando electrochemical cell was designed, constructed and tested on the Swiss-Norwegian Beamlines BM01 and BM31 at the European Synchrotron Radiation Facility. Single-crystal sapphire X-ray windows provide a good signal-to-noise ratio, excellent electrochemical contact because of the constant pressure between the electrodes, and perfect electrochemical stability at high potentials due to the inert and non-conductive nature of sapphire. Examination of the phase transformations in the LiFeMnPO positive electrode (cathode) material at C/2 and 10C charge and discharge rates, and a study of the valence state of the Ni cations in the LiNiMnO cathode material for Li-ion batteries, revealed the applicability of this novel cell design to diffraction and spectroscopic investigations of high-power/high-voltage electrodes for metal-ion batteries.
一种新型多功能原位电化学电池在欧洲同步辐射装置的瑞士-挪威光束线BM01和BM31上进行了设计、构建和测试。单晶蓝宝石X射线窗口具有良好的信噪比，由于电极之间的恒压而具备出色的电化学接触，并且由于蓝宝石的惰性和非导电性质，在高电位下具有完美的电化学稳定性。对LiFeMnPO正极（阴极）材料在C/2和10C充放电速率下的相变进行的研究，以及对锂离子电池LiNiMnO阴极材料中Ni阳离子价态的研究，揭示了这种新型电池设计在金属离子电池高功率/高电压电极的衍射和光谱研究中的适用性。
