Current interruption device and electricity storage device including the same
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United States of America Patent
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Jul 23, 2019
Grant Date -
Jun 28, 2018
app pub date -
May 11, 2016
filing date -
May 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A current interruption device includes a conductive plate and a first deformable plate. The conductive plate includes a center portion and a peripheral portion surrounding the center portion. An upper surface of the center portion is formed in a planar shape spreading in a first direction and a second direction orthogonal thereto in a conductive state. The peripheral portion includes an inclined portion extending outward from a boundary between the center portion and the peripheral portion. An upper surface of the inclined portion is inclined so as to increase a distance to the first deformable plate as the upper surface of the inclined portion becomes farther away from the center portion when the conductive plate and the first deformable plate are viewed along the first direction or the second direction in the conductive state.
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