Energy storage device
AssigneeLS Mtron Ldt.
InventorsHa-Young LEE, Jin-A Kang, Jun-Ho Kim, Sang-Hyun Bae
Life of this patent
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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.
Claims17
An energy storage device, comprising:
- 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,
- wherein 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.
An energy storage device comprising:
- 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;
- an outer terminal connected to the inner terminal;
- and
- a pressure relief unit for relieving an inner pressure of the housing,
- wherein openings are respectively formed in the inner and outer terminals for the communication with the outside, and the pressure relief unit is installed in the openings and selectively opens the openings in association with the change of the inner pressure of the housing when the inner pressure is increased over an allowable level.
Dependencies are inferred from the claim text.