H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 2/00 (2006.01) H01M 2/02 (2006.01) H01M 2/04 (2006.01) H01M 2/26 (2006.01) H01M 2/30 (2006.01) H01M 2/36 (2006.01) H01M 6/10 (2006.01)
Patent
CA 2358740
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.
Ridout & Maybee Llp
Wilson Greatbatch Ltd.
LandOfFree
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