Electrochemical cells, electrodes and methods of manufacture
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United States of America Patent
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Feb 20, 1990
Grant Date -
N/A
app pub date -
Jun 8, 1988
filing date -
Jun 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrode precursor for lithium batteries includes a layer of an electrochemically active particulate material and a binder. The binder is soluble in the cell electrolyte so that the electrolyte extracts the binder from the particulate material after assembly, leaving a particulate layer substantially devoid of binder. Thus, the binder does not significantly decrease electrical conductivity of the layer in the cell and does not impede the ionic access to the layer. The soluble binder may be present in the electrode precursor in an amount sufficient to protect particulate which would otherwise react with the atmosphere.
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