RECHARGEABLE BUTTON CELL
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United States of America Patent
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Issued Date -
Sep 30, 2021
app pub date -
Jun 24, 2020
filing date -
Mar 27, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention discloses a rechargeable button cell, which includes an anode shell, a cathode shell, and a coiled electric core which is located in a receiving cavity and includes an anode tab and a cathode tab. The anode tab includes a first connection portion, and a first folding portion that is folded from the first connection portion to the lower side of the first connection portion. The first folding portion is welded to a bottom wall from the interior of the anode shell. The cathode tab includes a second connection portion, and a second folding portion that is folded from the second connection portion to the upper side of the second connection portion. The second folding portion is welded to a top wall from the interior of the cathode shell.
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