ENERGY STORAGE DEVICE
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United States of America Patent
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N/A
Issued Date -
Sep 29, 2011
app pub date -
Feb 2, 2011
filing date -
Feb 5, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An energy storage device includes an electrode unit in which a cathode having a cathode lead, an anode having an anode lead, and a separator located between the cathode and the anode to separate the cathode and the anode from each other are rolled together; a housing receiving the electrode unit; an electrolyte filled in the housing; an inner terminal arranged in the housing to face the electrode unit; and an outer terminal connected to the inner terminal. A groove is formed in a side of the inner terminal, and a side protrusion is formed on an inner wall of the housing at a location corresponding to the groove.
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