Cell with a tabless electrode
AssigneeTesla, Inc.
InventorsKunio Tsuruta, Mikel Ehrlich Dermer, Rajeev Dhiman
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Abstract
A cell of an energy storage device with at least one electrode that is tables, and methods of forming thereof, are described. The cell includes a first substrate having a first coating disposed thereon, wherein a second portion of the first substrate at a proximal end along the width of the first substrate comprises a conductive material. An inner separator is disposed over the first substrate. A second substrate is disposed over the inner separator. The second substrate has a second coating disposed thereon. The first substrate, the inner separator, and the second substrate in a successive manner, the first substrate, the inner separator, and the second substrate are rolled about a central axis.
Claims30
A cell of an energy storage device, the cell comprising:
- a first substrate having a proximal end and a distal end, wherein the first substrate comprises a first portion and a second portion, the second portion comprises a conductive material located at the proximal end, the conductive material comprises a plurality of conductive portions, each of the conductive portions comprise a width, and each of the conductive portions are spaced apart from one another by a non-conductive portion;
- a second substrate;
- and
- an inner separator disposed between the first substrate and the second substrate;
- wherein the first substrate, the inner separator, and the second substrate are rolled about a central axis to form a cell;
- wherein each of the spaced apart conductive portions are bent;
- and
- wherein the plurality of conductive portions of the first substrate form a concentric circular pattern.
Dependencies are inferred from the claim text.