Battery with trench structure and fabrication method thereof
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United States of America Patent
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-
Dec 17, 2002
Grant Date -
N/A
app pub date -
Feb 11, 2000
filing date -
May 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a battery having a trench structure which can increase an effective area per unit area, and a fabrication method therefor. The battery according to the present invention forms trenches on thin film elements including a substrate, thereby increasing a contact interface between a cathode and an electrolyte and between the electrolyte and an anode, and simultaneously increasing an amount of an electrode per unit area. As a result, the present invention provides a high performance battery that a current density and a total current storage density are increased, and a charging speed after discharge is improved. The trench structure of the present invention can adapt to a bulk battery as well as a thin film battery.
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