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US 12,738,590 B2Granted
Battery cell and battery device having the same
AssigneeSK On Co., Ltd.
InventorsJohn Cronin, Yong Bok Moon, Soo Min Park, Hyung Ju Paik, Hae Ryong Jeon
Life of this patent
Estimating the term…
Abstract
A battery cell includes a case accommodating an electrode assembly, a cap plate covering the case, an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly, and a venting part including an active venting device configure to be opened to discharge gas from inside the case according to an electrical signal generated under a preset condition.
Claims19
A battery cell comprising:
- a case accommodating an electrode assembly;
- a cap plate covering the case;
- an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly;
- and
- a venting part comprising a valve including an active venting device configured to be opened to discharge gas from inside the case according to an electrical signal generated under a preset condition,
- wherein the active venting device includes a casing having an inlet through which gas generated inside the case is introduced, and an outlet through which the gas introduced from the inlet is discharged, the outlet in contact with a stopper of the valve for closure of the outlet, and
- the inlet and the outlet are disposed in directions intersecting each other.
4 more elements
A battery cell comprising:
- a case accommodating an electrode assembly;
- a cap plate covering the case;
- an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly;
- and
- a venting part including an active venting device configured to be opened to discharge gas from inside the case according to an electrical signal generated under a preset condition,
- wherein at least one of the cap plate and the case includes a venting hole through which the gas inside the case is discharged externally,
- the active venting device is disposed in an internal space of the case,
- the venting part includes the active venting device and a vent cover covering the venting hole, and
- an outlet of the active venting device is disposed to face the vent cover.
6 more elements
A battery device comprising:
- a plurality of battery cells;
- a housing accommodating the plurality of battery cells;
- and
- a controller connected to at least one of the plurality of battery cells and controlling at least one of the plurality of battery cells,
- wherein the plurality of battery cells include a case accommodating an electrode assembly, a cap plate covering the case, an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly, and a venting part including an active venting device configured to be opened to discharge gas from inside the case according to an electrical signal generated under a preset condition,
- the controller controls an operation of at least one of the battery cells when the active venting device disposed in at least one of the plurality of battery cells operates,
- the active venting device includes an inlet through which the gas generated inside the case is introduced, an outlet through which the gas introduced from the inlet is discharged, an actuator configured to operate to open the outlet, and a first sensor configured to sense current flowing through the electrode terminal,
- the actuator is configured to operate when the current sensed by the first sensor is greater than a threshold value, and
- the controller performs current balancing for at least one of the plurality of battery cells when the current sensed by the first sensor is greater than the threshold value.
6 more elements
Dependencies are inferred from the claim text.