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Na4Co3(PO4)2P2O7 through Correlative Operando X-ray Diffraction and Electrochemical Impedance Spectroscopy
Chemistry of Materials ( IF 7.2 ) Pub Date : 2019-06-27 00:00:00 , DOI: 10.1021/acs.chemmater.9b01054 Maider Zarrabeitia 1 , María Jáuregui 1 , Neeraj Sharma 2 , James C. Pramudita 2, 3 , Montse Casas-Cabanas 1
Chemistry of Materials ( IF 7.2 ) Pub Date : 2019-06-27 00:00:00 , DOI: 10.1021/acs.chemmater.9b01054 Maider Zarrabeitia 1 , María Jáuregui 1 , Neeraj Sharma 2 , James C. Pramudita 2, 3 , Montse Casas-Cabanas 1
Affiliation
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Na4Co3(PO4)2P2O7, a high-voltage positive Na-ion electrode material, is thoroughly analyzed by coupling operando X-ray diffraction (XRD) and electrochemical impedance spectroscopy (EIS) measurements. Na4Co3(PO4)2P2O7 follows a complex structural evolution upon electrochemical cycling four consecutive biphasic reactions followed by a single-phase process at the end of the charge. The coupling of XRD and EIS techniques allows the correlation between the phase transformation sequence and transport properties so as to unlock the factors governing the electrochemical performance of Na4Co3(PO4)2P2O7.
中文翻译：
Na 4 Co 3（PO 4）2 P 2 O 7的相关的Operando X射线衍射和电化学阻抗谱
通过耦合操作X射线衍射（XRD）和电化学阻抗谱（EIS）测量，对Na 4 Co 3（PO 4）2 P 2 O 7（一种高压正Na离子电极材料）进行了全面分析。Na 4 Co 3（PO 4）2 P 2 O 7电化学循环四个连续的双相反应后，随着复杂的结构演化，在充电结束时进行单相过程。XRD和EIS技术的耦合使相变序列与传输性质之间具有相关性，从而释放出控制Na 4 Co 3（PO 4）2 P 2 O 7电化学性能的因素。
更新日期：2019-06-27
中文翻译：
Na 4 Co 3（PO 4）2 P 2 O 7的相关的Operando X射线衍射和电化学阻抗谱
通过耦合操作X射线衍射（XRD）和电化学阻抗谱（EIS）测量，对Na 4 Co 3（PO 4）2 P 2 O 7（一种高压正Na离子电极材料）进行了全面分析。Na 4 Co 3（PO 4）2 P 2 O 7电化学循环四个连续的双相反应后，随着复杂的结构演化，在充电结束时进行单相过程。XRD和EIS技术的耦合使相变序列与传输性质之间具有相关性，从而释放出控制Na 4 Co 3（PO 4）2 P 2 O 7电化学性能的因素。
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