Battery cell and battery device having the same
AssigneeSK On Co., Ltd.
InventorsJohn Cronin, Do Il PARK, Soo Min PARK, Hyung Ju PAIK, Hae Ryong JEON
Life of this patent
Estimating the term…
Abstract
Provided is a battery cell including: a case configured to accommodate an electrode assembly; a cap plate configured to cover the case; an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly; a vent cover disposed in a venting hole to open the venting hole when pressure inside the case is equal to or greater than a predetermined pressure; and a vent fuse electrically connected to the electrode terminal and configured to operate to block current flow between the electrode terminal and the outside thereof by discharging gas through the vent cover or by deforming the vent cover.
Claims20
A battery cell comprising:
- a case configured to accommodate an electrode assembly;
- a cap plate configured to cover the case;
- an electrode terminal disposed on the cap plate and electrically connected to the electrode assembly;
- a vent cover disposed in a venting hole to open the venting hole when pressure inside the case is equal to or greater than a predetermined pressure;
- and
- a vent fuse electrically connected to the electrode terminal and configured to operate to block current flow between the electrode terminal and the outside thereof by discharging gas through the vent cover or by deforming the vent cover.
A battery device comprising:
- a plurality of battery cells;
- a housing configured to accommodate the plurality of battery cells;
- and
- a controller connected to at least one of the plurality of battery cells to control at least one of the plurality of battery cells,
- wherein at least one of the plurality of battery cells comprises a case for 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, a vent cover disposed in a venting hole to open the venting hole when pressure inside the case is equal to or greater than a predetermined pressure, and a vent fuse electrically connected to the electrode terminal and configured to operate to block current flow between the electrode terminal and the outside thereof by discharging gas through the vent cover or by deforming the vent cover, and
- the controller outputs an abnormal signal or blocks or limits an operation of at least one battery cell when at least one of a current and voltage is not detected from at least one of the plurality of battery cells.
Dependencies are inferred from the claim text.