Battery pack
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United States of America Patent
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Dec 26, 2017
Issued Date -
N/A
app pub date -
Oct 30, 2014
filing date -
Feb 12, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A secondary battery includes a can having an opening at one end, an electrode assembly accommodated in the can through the opening, a cap plate that seals the opening, and an insulation plate below the cap plate. The can includes: a first surface that is convex; a second surface that faces the first surface and is concave; a third surface that is curved and connected to the first surface and the second surface to form a bottom surface; a first connection portion that connects the first surface and the third surface and has a round form having a first radius of curvature; and a second connection portion that connects the second surface and the third surface and has a round form having a second radius of curvature. At least one of the first radius of curvature and the second radius of curvature varies along a length of the third surface.
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Cited Art Landscape
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