Xiamen Hithium Energy Storage Technology Co., Ltd.

Shenzhen Hithium Energy Storage Technology Co., Ltd.

Qin Zhang

A wound battery which relates to the field of batteries. The wound battery is formed by winding a battery sheet. The battery sheet is flexible and includes a flexible current collector, a positive active layer, a negative active layer, and an insulating separator which is formed on a surface of the positive active layer and/or a surface of the negative active layer, and is configured to prevent the positive active layer from directly contacting the negative active layer.

Wound battery and energy storage device

Provided are a material conveying device and a material processing apparatus. The material conveying device includes a frame and a plurality of conveying mechanisms sequentially arranged in a conveying direction of a material. An output end of each of the plurality of conveying mechanisms is connected to an input end of an adjacent conveying mechanism. Each of the plurality of conveying mechanisms includes a plurality of rollers each rotatably connected to the frame, and a driver in a transmission connection with one of the plurality of rollers to drive the one of the plurality of first rollers to rotate. Each conveying mechanism is driven by a separate driver. A speed of the material on different conveying mechanisms can be controlled by adjusting a direction and a magnitude of torque outputted by the driver.

Material conveying device and material processing apparatus

Provided are a positive current collector, a preparation method thereof, a positive electrode sheet, a cell and a battery. The positive current collector. The positive current collector includes a substrate film and a functional layer arranged on a surface of the substrate film. The substrate film has a first surface and a second surface opposite to the first surface. The first surface has a first functional layer provided thereon, and the second surface has a second functional layer provided thereon. The first functional layer includes a bonding layer, a current conducting layer, and a protective layer that are stacked sequentially. The bonding layer is arranged on the first surface. The first functional layer is divided to have a first functional segment and a second functional segment in a direction parallel to the first surface. The first functional segment has a thickness greater than a thickness of the second functional segment.

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Guangdong, China

Qin Zhang