South China University of Technology

Xiamen Hithium Energy Storage Technology Co., Ltd.

Shenzhen Hairun New Energy Technology Co., Ltd.

Xin Lin

Hui Chen

Zhen Li

Weiguang Li

Guo Zhao

Long Zhang

Junwen Zhang

Xiongge Zheng

Junkuan Cui

Jingrun Zhang

Xuezhi Zhao

Daohan Cai

Yinghui Xu

Yiqin Zhuang

Qingqing Song

Dongze Zheng

Packaging box for marker pens

A negative electrode sheet and a manufacturing method thereof and a battery are provided in the disclosure. The negative electrode sheet includes a conductive fiber cloth, a support layer, and an active material layer. The conductive fiber cloth serves as a current collector of the negative electrode sheet. The support layer is formed on a surface of the conductive fiber cloth and includes multiple protruding units, where each of the multiple protruding units includes multiple needle-shaped protrusions, and the multiple needle-shaped protrusions of each protruding unit are arranged radially. The active material layer includes multiple active portions, where each of the multiple active portions is formed on a surface of one of the multiple needle-shaped protrusions, and different active portions are formed on surfaces of different needle-shaped protrusions.

Negative electrode sheet and manufacturing method thereof and battery

A transmission shaft assembly for use in a sequential test of flexible thin-walled bearings includes a power connecting member, a clamping device and a plurality of bearing mounting kits. The bearing mounting kits are located between the power connecting member and the clamping device. The clamping device penetrates a central bore of each of the bearing mounting kits and is connected to the power connecting member. The power connecting member, the clamping device and the bearing mounting kits are connected into one piece. The power connecting member includes a spindle shank and a blind rivet. The bearing mounting kit includes a bearing mounting sleeve seat, a rear retaining ring, a front retaining ring, a bearing locking bolt and a tightening nut. The clamping device includes a clamping bolt, a washer and a spring washer.

Transmission shaft assembly for use in sequential test of flexible thin-walled bearings

The present invention discloses a fault diagnosis and life testing machine for a flexible precision thin-wall bearing (), including a rack, and an axial loading device, a main driving device, a bearing mounting device, a clamping tooling, a data acquisition device, a hydraulic and a pneumatic auxiliary device which are provided on the rack. The main driving device is connected to a rear side of the axial loading device, and the clamping tooling is arranged at a front side of the axial loading device, for clamping the thin-wall bearing () onto the bearing mounting device. The data acquisition device is arranged in the axial loading device and at a side of the rack, the hydraulic and pneumatic auxiliary device is arranged at a side of the rack, and the axial loading device and the main driving device are connected by a pipeline. This testing machine can apply dynamic and static loads to the precision flexible thin-wall bearing (), can realize measurement of a bearing vibration, a bearing temperature, a bearing rotation progress and a rotation speed, and has advantages such as clever structure, perfect test function and relatively high test accuracy, safe and reliable detection process, and highly feedback results.

Fault diagnosis and life testing machine for flexible precision thin-wall bearing

Growing community of inventors

Guangdong, China

Xin Lin