HIGH ENERGY CELL FUSIBLE LINK

• US 20090320277A1
• Filed: 04/24/2007
• Published: 12/31/2009
• Est. Priority Date: 04/24/2007
• Status: Active Grant

• Current Assignee: Bren-Tronics Batteries International, LLC
• Original Assignee: International Battery, Inc.
• Inventors: Barrella, Joseph, Andruk, Wayne
• Granted Patent: US 7,837,745 B2
• Time in Patent Office: Days
• US Class Current: 29/623.1
• CPC Class Codes: H01M 50/583 in response to current, e.g. fuses
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49108 Electric battery cell making

Abstract

A means and method for rendering high energy density cells safe in compliance with transportation requirements, with the incorporation of a cell fusible terminal which is added on or incorporated within the cell terminals to prevent over current and hazards from developing due to external short circuits. As a result, cells made in accordance with the method of the present invention can be shipped by common carriers even though they are classified as hazardous materials and can be readily used and normally discharged with such fusible link element thereon. The fusible terminal comprises a non conductive base element upon which is mounted a fusible link element and wherein the non-conductive or insulative base element comprises means for connection to a terminal of the cell or battery and to an external component.

Claims

1. ) A method for rendering a high energy cell, subject to detrimental short circuiting conditions, sufficiently safe for the transport thereof on common carriers, said method comprising the step of emplacing a fusible link element on a terminal of said cell, wherein said fusible link element comprises an insulative base element integrated with insulative means for connection to the battery and a device powered thereby and wherein said fusible link element further comprises a conductive fusible element having means for the melting and breaking thereof upon high temperature short circuiting conditions with concomitant opening of a circuit, wherein said fusible element is adapted to be placed on said insulative base element for adjacent electrical contact with a terminal of said cell and said powered device.