FLAT BATTERY
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United States of America Patent
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app pub date -
Apr 18, 2017
filing date -
Jun 13, 2013
priority date (Note) -
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Abstract
A flat battery (1) includes a positive electrode can (10), a negative electrode can (20), a positive electrode material (41), a negative electrode material (42), and a positive electrode ring (44) provided on an inner surface of a bottom (11) of the positive electrode can (10) to hold one of the positive electrode material (41) and the negative electrode material (42). The positive electrode ring (44) has a side wall (44a) and a flange (44b) that extends outward to overlap an open end of a circumferential wall (22) of the negative electrode can (20). The flange (44b) is placed between the open end of the circumferential wall (22) of the negative electrode can (20) and the inner surface of the bottom (11) of the positive electrode can (10).
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