Northvolt Ab

Tetsuya Makino

Kenya Shatani

Brendan Sexton

Marouene Ben Messaoud

Daniel Lowe

This disclosure presents an electrode lead plate () for a cylindrical secondary cell () comprising a terminal part () and an electrode roll () comprising a conductive sheet (). The electrode lead plate () comprises an inner contact region () configured to be arranged in direct electrical contact with the terminal part (), an outer contact region () configured to be arranged in direct electrical contact with the conductive sheet (), and a fuse region (). Further, a terminal part () and a cylindrical secondary cell (), as well as uses and methods of manufacture, are presented.

Cylindrical secondary cell and a method of its manufacture

The disclosure provides a cylindrical secondary cell () and a method of its assembly. The cylindrical secondary cell () comprises a cylindrical can () comprising a beading groove (), a first conductive sheet (), with first electrode coating (), wound to form a jelly roll (), the first conductive sheet () comprises a portion free of first electrode coating () protruding on a first end side (), and an electrode lead plate () arranged at the first end side () and in direct contact with the portion free of first electrode coating (). The electrode lead plate () comprises a flange () extending away from the jelly roll () and arranged along the edge of the electrode lead plate (). The beading groove () is arranged on the cylindrical can () such that the flange of the electrode lead plate () is bent and pressed inwards, towards a centre of the cylindrical can (), by the beading groove ().

Cylindrical secondary cell

This disclosure presents an electrode lead plate () for a cylindrical secondary cell () comprising a terminal part () and an electrode roll () comprising a conductive sheet (). The electrode lead plate () comprises an inner contact region () configured to be arranged in direct electrical contact with the terminal part () and an outer contact region () configured to be arranged in direct electrical contact with the conductive sheet (), wherein the inner contact region () is recessed in relation to the outer contact region (). Further, a terminal part () and a cylindrical secondary cell (), as well as uses and methods of manufacture, are presented.

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Solna, Sweden

Tetsuya Makino