SECONDARY BATTERY AND BATTERY PACK USING THE SAME
First Claim
Patent Images
1. A secondary battery comprising:
- an electrode assembly comprising a first electrode, a second electrode, and a separator between the first and second electrodes;
a case containing the electrode assembly;
a terminal electrically coupled to the first electrode; and
a lead tab electrically coupled to the first electrode via the terminal inside the case, extending to outside of the case, and configured to be separated from at least a portion of the terminal to be electrically decoupled from the first electrode if the case is deformed while the lead tab remains attached to the case.
1 Assignment
0 Petitions
Accused Products
Abstract
A secondary battery and a battery pack using the same are provided. In the secondary battery, an electrode terminal extending from an electrode assembly is structurally and electrically connected to a lead tab to turn on a circuit, and if swelling arises, the lead tab coupled to a pouch case is spaced apart from the electrode terminal due to expansion of the pouch case to break the structural connection between the electrode terminal and the lead tab, thereby turning off the circuit.
59 Citations
18 Claims
-
1. A secondary battery comprising:
-
an electrode assembly comprising a first electrode, a second electrode, and a separator between the first and second electrodes; a case containing the electrode assembly; a terminal electrically coupled to the first electrode; and a lead tab electrically coupled to the first electrode via the terminal inside the case, extending to outside of the case, and configured to be separated from at least a portion of the terminal to be electrically decoupled from the first electrode if the case is deformed while the lead tab remains attached to the case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A battery pack comprising:
-
a plurality of secondary batteries; and a circuit board for controlling the secondary batteries, wherein at least one of the secondary batteries comprises; an electrode assembly comprising a first electrode, a second electrode, and a separator between the first and second electrodes; a case containing the electrode assembly; a terminal electrically coupled to the first electrode; and a lead tab electrically coupled to the first electrode via the terminal inside the case, extending to outside of the case, and configured to be separated from at least a portion of the terminal to be electrically decoupled from the first electrode if the case is deformed while the lead tab remains attached to the case, wherein the lead tab is electrically coupled to a lead tab of at least another one of the secondary batteries.
-
Specification