ELECTRODE LEAD TO CASE AND HEADER, LASER/ELECTRON BEAM WELDING

ELECTRODE LEAD TO CASE AND HEADER, LASER/ELECTRON BEAM WELDING

The present invention provides a new process for attaching the anode lead to the battery case, creating a case negative design. The anode lead is an extension of the anode current collector and is nested between the case and the lid. Excess lead material is ground or cut off and the case to lid seal...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: SKOUMPRIS, JOHN
Format: Patent
Sprache:eng ; fre
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:The present invention provides a new process for attaching the anode lead to the battery case, creating a case negative design. The anode lead is an extension of the anode current collector and is nested between the case and the lid. Excess lead material is ground or cut off and the case to lid seal is achieved by laser/electron beam welding. The new procedure enhances the hermicity of the cell and the new process is applicable to a number of additional applications. This includes primary lithium batteries, implantable batteries, lithium based rechargeable cells, also acid or alkaline based batteries.