Dongguan Amperex Technology Limited

Haibing Wang

Wenqiang Cheng

Baohua Chen

Wei Yang

Meina Lin

Tongming Dong

Shufeng Wu

Junliang Zhu

Zhihua Qin

An electrode assembly and a lithium ion electric roll having the same are provided. The electrode assembly includes: a first electrode unit; a first anti-puncture cushion; in which the first electrode unit includes a first electrode sheet, an second electrode sheet, and a separator, the second electrode sheet comprises a second top edge and a second bottom edge along the length direction of the first electrode unit; an edge of the first anti-puncture cushion exceeds the second electrode sheet from the second top edge or the second bottom edge along the length direction of the first electrode unit.

Electrode assembly, and lithium ion electric roll using the electrode assembly

An electrode assembly and a lithium ion electric roll having the same are provided. Also provided is a battery, which includes: a first layer; a second layer located at the side of a surface of the first layer, exposed from the first layer in a first direction view which is perpendicular to a first surface of the first layer; a third layer tucking at least one portion of the second layer with the first layer in the first direction view, being exposed from the second layer in the first direction view; and a conductive plate protruding from a second side of the first layer in the first direction view.

A wound bare electric roll includes a cathode sheet, an anode sheet and a separator, the separator being arranged between the cathode sheet and the anode sheet. The cathode sheet has an end and an anti-puncture cushion arranged on a tail exposed zone at the end of the cathode sheet. The anti-puncture cushion corresponds to an outer surface of a corner of the anode sheet. A lithium ion battery has a laminated aluminum film, and a wound bare electric roll accommodated in the laminated aluminum film.

Cathode sheet and lithium ion electric roll using the same

An electrode assembly and a lithium ion electric roll having the same are provided. The electrode assembly includes: a first electrode unit; a first anti-puncture cushion; in which the first electrode unit includes a first electrode sheet, an second electrode sheet, and a separator, the separator is disposed between the first electrode sheet and the second electrode sheet; the first anti-puncture cushion is disposed on a side of the first electrode unit along a width direction, and covers an edge of the first electrode sheet.

The present application relates to the filed of an energy storage component, and in particular, relates to an electrode assembly, and a lithium ion electric roll using the electrode assembly. The electrode assembly comprises a bare electric roll and an anti-puncture cushion; wherein the bare electric roll comprises at least one electrode unit, the electrode unit comprising a cathode sheet, an anode sheet, and a separator, wherein the cathode sheet is isolated from the anode sheet by the separator; and the anti-puncture cushion is arranged on two sides along a width direction of the bare electric roll, and covers an edge of the anode sheet. A lithium ion electric roll comprises a laminated aluminum film and the electrode assembly, wherein the electrode assembly is wrapped by the laminated aluminum film.

The present application relates to the filed of energy storage devices, and in particular, relates to a cathode sheet and a lithium ion electric roll using the cathode sheet. The cathode sheet comprises a cathode current collector, an active substance layer, a cathode tab, a head protective adhesive, a tail protective adhesive, an ending adhesive, and an anti-puncture cushion. The cathode current collector comprises a head exposed zone, a head adhesive application zone, a coating zone, a tail adhesive application zone, and a tail exposed zone. The active substance layer covers the coating zone, the head protective adhesive covers the head adhesive application zone, the tail protective adhesive covers the tail adhesive application zone, the ending adhesive is bonded to a tail of the tail exposed zone, and the anti-puncture cushion is connected to the tail exposed zone.

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Dongguan, China

Haibing Wang