Back to results
US 2022/0102785 A1Published application
Pouch battery with safety protection function
AssigneeTechtronic Cordless GP
InventorsHei Man Raymond LEE, Ming Jun ZHUANG
Life of this patent
Estimating the term…
Abstract
A pouch battery contains a pouch, an electrode material and a safety protection device. The electrode material is located in the pouch. The safety protection device is configured to generate an action based on a change in gas pressure within the pouch. In this way, even if the pouch battery is abnormal, its internal circuit can be cut off in time to avoid providing power to external devices while being under abnormal conditions.
Claims7
A pouch battery comprising:
- a pouch;
- an electrode material located in the pouch;
- an anode tab extending from the pouch;
- a cathode tab extending from the pouch;
- and
- an electrically-conductive adhesive configured to secure the electrode material to at least one selected from a group consisting of the anode tab and the cathode tab to provide an electrical connection between the electrode material and the at least one selected from the group consisting of the anode tab and the cathode tab;
- wherein the at least one selected from the group consisting of the anode tab and the cathode tab is connected to an inner surface of the pouch such that the at least one selected from the group consisting of the anode tab and the cathode tab is configured to provide a pulling force on the adhesive away from the electrode material to cut off the electrical connection between the electrode material and the at least one selected from the group consisting of the anode tab and the cathode tab in response to an inner space of the pouch expanding due to gas pressure in the pouch reaching a predetermined value.
4 more elements
Dependencies are inferred from the claim text.