Electrodes for battery and method for fabricating the same
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United States of America Patent
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Feb 24, 1998
Grant Date -
N/A
app pub date -
Feb 13, 1996
filing date -
Oct 9, 1995
priority date (Note) -
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Abstract
An electrode for a battery with small dispersion in its discharge capacity and excellent reliability is disclosed. It comprises a sheet of porous metal substrate having three-dimensional communicating spaces, and an active material. The substrate has a higher porosity layer occupying most part of the spaces connected to the first principal face and a lower porosity layer occupying the remaining part of the spaces connected to the second principal face; the lower porosity layer has a sufficiently smaller thickness than the higher porosity layer; and the active material is filled substantially in the higher porosity layer.
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