Process for production of an electrochemical sub-assembly comprising an electrode and an electrolyte, and the sub-assembly obtained in this way
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United States of America Patent
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Nov 6, 1990
Grant Date -
N/A
app pub date -
Feb 21, 1989
filing date -
Jun 18, 1987
priority date (Note) -
Expired
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Abstract
The invention concerns a process for manufacturing a double-layer electrolyte/electrode electrochemical sub-assembly comprising a positive composite electrode layer and a superimposed electrolyte layer, said layers each containing an ionically-conducting macromolecular material and having at their interface a physical and chemical continuum between the macromolecular material of the electrolyte and that of the electrode, and the sub-assembly so obtained. The process consists in depositing one of the layers on a support from a fluid phase containing the constituents of this layer, partially cross-linking the layer, and then spreading the other layer on this partially cross-linked layer from a fluid phase containing the constituents of the other layer and capable of dissolving the macromolecular material of the first layer deposited on the support. Application of the double-layer sub-assembly to the fabrication of electrochemical cells in the form of thin layers.
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