X-ray device for continuous in situ electrochemical study of plastic Li-ion cells

摘要

the device developed here for XRD analysis is built on a Guinier-Lenne geometry camera. A monochromatized and focused beam goes through the plastic Li-ion cell protected by a metal- plastic laminate. Each layer of the cell produces diffracted beams that are collected by an X-ray film on the focus circle. The film is continuously moved up (1-2mm/h) while the Li-ion cells is charged and discharged, and controlled by means of the Mac-pile system. This system allows the control of intercalation rate either in potentionstatic mode or in galvanostatic mode (Mac Pile, Bio-Logic SA, Claix, France).