Battery with over-pressure protection
AssigneeJAKKS Pacific, Inc.
InventorStephen Gregory Berman
Life of this patent
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Abstract
A battery assembly includes a sealed battery cell container holds a positive and negative electrode and an electrolyte. Deflection-responsive means engages at least one outer face of the container and is responsive to deflection thereof for operating a cut-off switch to break the electrical continuity of the battery assembly. Flat battery cell containers may be stacked in different arrangements within a coupling structure, the arrangements defining either a cavity between the coupling structure and an adjacent container face, or a cavity between faces of adjacent cell containers. A membrane switch received in the cavity is actuated by bulging of a cell container wall. A control circuit operates the cut-off switch in response to actuation of the membrane switch.
Claims14
A battery assembly comprising:
- a sealed battery cell container holding a positive and negative electrode and an electrolyte, the container having outer faces;
- a cut-off switch electrically connected between one of the electrodes and an output of the device, the switch being operable to break the electrical continuity of the battery assembly, and
- deflection-responsive means engaging at least a first outer face and responsive to deflection thereof for operating the cut-off switch.
Dependencies are inferred from the claim text.