Current interrupt device for secondary batteries
First Claim
1. A secondary battery having a current interrupt device, comprising:
- a cell having a positive terminal and a negative terminal;
a device for coupling the positive terminal to the negative terminal in response to swelling of the cell; and
a fuse coupled between the positive terminal and the negative terminal in response to swelling of the cell.
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Accused Products
Abstract
A secondary battery (100) includes a cell (110) having a positive terminal (115) and a negative terminal (120), a device (130, 140) for coupling the positive terminal (115) to the negative terminal (120) in response to swelling of the cell (100), and a fuse (125) coupled between the positive terminal (115) and the negative terminal (120) in response to swelling of the cell (110).
According to another aspect of the present invention, a secondary battery (700) has external contacts (150, 155) and includes a cell (110) having a positive terminal (115) and a negative terminal (120) that are coupled to the external contacts (150, 155) during normal cell operation. In response to swelling of the cell (110), a device (705, 720, 725, 730, 735) decouples at least one of the positive and negative terminals (115, 120) from at least one of the external contacts (150, 155) in response to swelling of the cell (110).
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Citations
12 Claims
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1. A secondary battery having a current interrupt device, comprising:
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a cell having a positive terminal and a negative terminal; a device for coupling the positive terminal to the negative terminal in response to swelling of the cell; and a fuse coupled between the positive terminal and the negative terminal in response to swelling of the cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification