%0 Journal Article
%K microstructure
%K lithium battery
%K asaxs
%K in situ
%A Artur Braun
%A Soenke Seifert
%A Pappannan Thiyagarajan
%A Stephen P Cramer
%A Elton J Cairns
%B Electrochemistry Communications
%D 2001
%N 3
%P 136-141
%R 10.1016/S1388-2481(01)00121-7
%T In situ anomalous small angle X-ray scattering and absorption on an operating rechargeable lithium ion battery cell
%V 3
%8 03/2001
%! Electrochemistry Communications
%X <p>We have employed anomalous small angle X-ray scattering (ASAXS) and X-ray absorption in situ on an operating lithium ion battery cell with LiMn<sub>2</sub>O<sub>4</sub> as the positive electrode material. Manganese K-edge absorption spectra and scattering patterns were recorded at various stages of charge between 3.8 and 4.5 V. The shift of the manganese absorption K-edge was observed as a function of the charge of the electrode. Clear changes in the microstructure of the spinel at the 4 V plateau was observed even during the first charging cycle.</p>