Lithium secondary cell

Details Lithium secondary cell Lithium secondary cell

H - Electricity

01

M

H01M 4/02 (2006.01) H01M 2/22 (2006.01) H01M 2/26 (2006.01) H01M 2/30 (2006.01) H01M 10/04 (2006.01) H01M 10/36 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2374313

The invention provides a lithium secondary cell including an inner electrode body impregnated with a non-aqueous electrolyte, made up of a positive electrode and a negative electrode each made of at least one metallic foil wound or laminated together and collectors to lead out a current from this inner electrode body. The edges of the metallic foil of the positive electrode and/or the negative electrode and predetermined parts of the positive electrode collector and/or negative electrode collector are joined together to lead out a current from the inner electrode body. The edges of the metallic foil, the edges (joint edges) arranged to be joined to the predetermined parts of the positive electrode collector and/or the negative electrode collector and the predetermined parts of the positive electrode collector and/or the negative electrode collector are joined together. The lithium secondary cell has excellent productivity and space-saving capability.

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