SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Oct 22, 2020
app pub date -
Jan 22, 2020
filing date -
Apr 18, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The secondary battery of the present embodiments can stably support a cap plate even if the length of a can (or case) is increased, and can improve manufacturability while reducing the processing cost. The secondary battery includes an electrode assembly; a case accommodating the electrode assembly and including a bottom portion, long side portions bent and extending from the bottom portion, short side portions extending from the bottom portion and the long side portions, and curved portions located between the long side portions and the short side portions; and a cap plate coupled to the case, wherein the long side portions of the case include stepped parts.
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