Battery having specific package structure
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United States of America Patent
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Sep 29, 2009
Grant Date -
Sep 1, 2005
app pub date -
Jan 27, 2005
filing date -
Jan 30, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a battery having a structure for increasing the power storage capacity and output thereof In accordance with the present invention, in a battery comprising an electrode assembly including anode plates, cathode plates and separators; and a battery case, both side bonding portions of which are folded toward adjacent sides thereof, for accommodating the electrode assembly and a designated amount of electrolyte, and sealing the electrode assembly such that two electrode terminals connected to corresponding electrode taps of the anode and cathode plates of the electrode assembly are exposed to the outside, an upper bonding portion of the battery case is folded toward the upper end of the battery case, and/or common portions of the upper bonding portion and both side portions of the battery case are cut off, and/or inner corners corresponding to the upper bonding portion have larger radiuses of curvature, and/or receipt portions for receiving the electrode assembly are respectively formed in upper and lower bodies of the battery case. The battery having the above structure has high power storage capacity and output at the same size of the battery package, and high sealing capacity and safety.
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