Ningde Amperex Technology Limited

Contemporary Amperex Technology Co., Ltd.

Li Xiang

Bin Wang

Qiaoshu Hu

Ying Shao

Yi-Bo Zhang

YiSong Su

Hongmei Wei

Li Quankun

Yu Xianfeng

Cai Rulai

Wang Peng

An electrode plate for a lithium battery includes a composite current collector, a first active material layer, and a first electrode tab. The composite current collector includes a polymer layer and first metallic layer thereon. The first active material layer is disposed on a surface of the first metallic layer facing away from the polymer layer. The first active material layer defines a first receiving groove at an edge of the first active material layer. The first electrode tab is received in the first receiving groove, and is electrically connected to the first metallic layer. The thickness of the first electrode tab can be varied according to the electrical resistance desired. Thus, a high resistance of the first electrode tab is avoided.

Electrode plate and electrode assembly using the same

A current collector for a lithium ion battery of reduced sensitivity to shocks and jars includes an insulating substrate, a first conductive layer; and at least one extended conductive layer extending from the first conductive layer. The insulating substrate has a main region and at least one tab region extending therefrom. The main region includes first and second surfaces opposing each other. The tab region includes a first extended surface extending from the first surface, and a second extended surface extending from the second surface. The first conductive layer covers the first surface, and the at least one extended conductive layer covers the first extended surface. Each tab region and extended conductive layer form a tab. The disclosure also provides an electrode plate and an electrode assembly.

Current collector with insulating substrate and conductive layer, electrode plate using the same, and electrode assembly using the same

A composite electrode plate of increased robustness and with better electrical properties for incorporation in a battery cell includes a composite current collector, a positive active material layer, a negative active material layer, a first isolation layer, and a second isolation layer. The composite current collector is disposed between the positive active material layer and the negative active material layer. The first isolation layer connects to a surface of the positive active material layer away from the composite current collector. The second isolation layer connects to a surface of the negative active material layer away from the composite current collector.

Composite electrode plate and battery cell using the same

An electrode assembly includes a cathode electrode plate, an anode electrode plate, and a separator disposed between the cathode electrode plate and the anode electrode plate. At least one of the cathode electrode plate and the anode electrode plate is an electrode plate which includes a current collector and a first conductive connector. The current collector includes an insulating layer having opposite side surfaces, a first conductive layer, a second conductive layer, and two electrode active substance layers. The first conductive layer and the second conductive layer are arranged on opposite side surfaces, and the two electrode active substance layers are coated onto the first conductive layer and the second conductive layer. The first conductive connector electrically connects the first conductive layer and the second conductive layer. The electrode assembly is formed by coiling the cathode electrode plate, the separator, and the anode electrode plate.

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Ningde, China

Li Xiang