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Zhejiang Greatwall Mixers Co., Ltd.

Zhijian Huang

Minghui Xie

Liang Wu

Bingxin Wang

Xuxing Cheng

Zhigeng Zhang

Shengxu Meng

Guozhong Zhou

Wenjiang Wu

Wancang Jing

Benchi Xu

Yulao Zhang

Xu Xu

A design method of bottom-entry magnetic stirring device is disclosed in which the stirring device includes an impeller assembly and an isolation sleeve which are connected axially in a movable manner. The isolation sleeve restricts the axial movement distance of the impeller assembly through the principle of magnetic levitation. The impeller assembly is suitable for driving the material in the middle of the stirring tank to move downwards. The isolation sleeve is set with downward magnetic force towards the impeller assembly, and the impeller assembly is in a suspended state when rotating, satisfying the formula Fvi+Ff=G+Fc. Thus, in the case of known impeller thrust Fvi or repulsive force Fc between magnets, the repulsive force Fc between magnets or impeller thrust Fvi can be obtained, thereby obtaining the design parameters of the magnets and the rotating speed of the drive shaft when it rotates stably.

Method of bottom-entry magnetic stirring device

A ternary precursor of a lithium ion battery as well as a preparation method and preparation device thereof are provided. A chemical general formula of the ternary precursor is NiCoMn(OH), 0.5&#x2264;x&#x2264;0.9, 0.05&#x2264;y&#x2264;0.3, and x+y+z=1. A particle size D50 of a large-particle ternary precursor is 10.0-16.0 &#x3bc;m, a particle size D50 of a small-particle ternary precursor is 3.0-6.0 &#x3bc;m, and a span is 0.2-0.8. A nucleation and growth process of a crystal is regulated through a staged EDCF, a crystal particle size meeting specific requirements and compact particles without a cracking phenomenon can be obtained. A disc, inclined blades and an arc surface are combined, and an arc-shaped curved surface can effectively reduce a turbulence energy dissipation rate of a local area.

Ternary precursor of lithium ion battery as well as preparation method and preparation device

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Wenzhou, China

Zhijian Huang