Fastener system of tab bussing for batteries
First Claim
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1. A method of tab bussing for a multicell battery, said multicell battery including a plurality of individual cells, each cell including at least one anode tab and one cathode tab, said method comprising the steps of:
- forming at least one hole through each of the anode and cathode tabs of each of said individual cells;
putting the cells alongside one another to form a battery;
aligning the anode tabs of the plurality of cells by reference to the holes in the anode tabs;
aligning the cathode tabs of the plurality of cells by reference to the holes in the cathode tabs;
inserting into a hole formed through the anode tabs of each said cells a first holding device and securing said first device to said anode tabs; and
inserting into a hole formed through the cathode tabs of each said cells a second holding device and securing said second device to said cathode tabs.
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Abstract
A fastener system for tab bussing for the multicell batteries and the apparatus to assist this system are described. The holding device is used to hold the tab bussing structure together. The holding device can be a bolt or a rivet. It minimizes the electrical resistance of the multicell battery, allows rework and achieves high energy efficiency and small dimensions for the multicell lithium-polymer batteries.
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Citations
16 Claims
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1. A method of tab bussing for a multicell battery, said multicell battery including a plurality of individual cells, each cell including at least one anode tab and one cathode tab, said method comprising the steps of:
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forming at least one hole through each of the anode and cathode tabs of each of said individual cells;
putting the cells alongside one another to form a battery;
aligning the anode tabs of the plurality of cells by reference to the holes in the anode tabs;
aligning the cathode tabs of the plurality of cells by reference to the holes in the cathode tabs;
inserting into a hole formed through the anode tabs of each said cells a first holding device and securing said first device to said anode tabs; and
inserting into a hole formed through the cathode tabs of each said cells a second holding device and securing said second device to said cathode tabs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tab bussing structure of a multicell battery, said multicell battery including a plurality of individual cells, said battery comprising:
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a plurality of tabs, at least one for each individual cell, each said tab having at least one hole therein; and
at least one bolt, wherein each said bolt passes through a hole of a tab of each cell;
a first clamp plate with at least one through hole therein and a second clamp plate with at least one threaded hole therein, said two clamp plates placed adjacent each other with the plurality of tabs between the plates;
wherein each said bolt passes through the first clamp plate and the tabs and is secured to said second clamp plate by means of the threaded hole in the second clamp plate. - View Dependent Claims (10, 11, 12)
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13. A multicell battery includes a plurality of individual cells, each cell comprising:
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an anode layer;
a cathode layer;
an electrolyte layer separating the anode and cathode layers;
a tab with at least one hole therein;
said battery further comprising; a first clamp plate with at least one through hole therein and a second clamp plate with at least one threaded hole therein, said two clamp plates placed adjacent each other with the tabs of the individual cells between the plates;
at least one holding device, wherein said holding device passes through the first clamp plate and a hole in a tab of each cell;
wherein said holding device is secured to said second clamp plate by means of the threaded hole in the second clamp plate. - View Dependent Claims (14, 15, 16)
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Specification