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

Published online by Cambridge University Press:  10 January 2013

B. Gérand ,
A. Blyr ,
A. Du Pasquier  and
L. Seguin
B. Gérand*
Affiliation:
Laboratoire de Réactivité et de Chimie des Solides, ESA CNRS 6007, Université de Picardie Jules Verne, 33, rue Saint Leu, 80039 Amiens Cedex, France
A. Blyr
Affiliation:
Laboratoire de Réactivité et de Chimie des Solides, ESA CNRS 6007, Université de Picardie Jules Verne, 33, rue Saint Leu, 80039 Amiens Cedex, France
A. Du Pasquier
Affiliation:
Laboratoire de Réactivité et de Chimie des Solides, ESA CNRS 6007, Université de Picardie Jules Verne, 33, rue Saint Leu, 80039 Amiens Cedex, France
L. Seguin
Affiliation:
Laboratoire de Réactivité et de Chimie des Solides, ESA CNRS 6007, Université de Picardie Jules Verne, 33, rue Saint Leu, 80039 Amiens Cedex, France
*
a)To whom correspondence should be addressed; Electronic-mail: [email protected]
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Abstract

The device developed here for XRD analysis is built on a Guinier–Lenné 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 (1–2 mm/h) while the Li-ion cell is charged and discharged, and controlled by means of the Mac-pile system. This system allows the control of intercalation rate either in potentiostatic mode or in galvanostatic mode (Mac Pile, Bio-Logic SA, Claix, France). The crystallographic behavior of both plastic electrodes can be simultaneously and continuously observed under the real conditions of a commercial battery. LixNiO2 and C graphite as positive and negative electrodes are given as an example, respectively. Structural and chemical parameters evolving from the two electrodes can easily be correlated with the cycling curves. Studies can also be performed from room temperature up to 100 °C.

Keywords

in-situ diffractionelectrochemicalLi-ion batteries
Type
Research Article
Information
Powder Diffraction , Volume 14 , Issue 4 , December 1999 , pp. 293 - 295
Copyright
Copyright © Cambridge University Press 1999

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References

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