Huazhong University of Science and Technology

Wuhan Rikomay New Energy Co., Ltd.

Zhejiang Landun Electrician New Material Technology Co., Ltd.

State Grid Xinjiang Electric Power Co., Ltd. Electric Power Research Institute

Shun Tang

Yuancheng Cao

Weixin Zhang

Hao Wu

Jian Wang

Yunhui Zhong

Yuzhen Zhao

Yaqing Guo

Shouding Li

Disclosed herein is a wide-range temperature electrolyte, a preparation thereof and a lithium ion battery. The wide-range temperature electrolyte includes a glycerin segment, a diisocyanate segment and a segment containing at least two terminal hydroxyl groups and one disulfide bond, and the self-healing electrolyte has a three-dimensional cross-linked network structure. The wide-range temperature electrolyte introduces a large number of repetitive disulfide bond groups and self-complementary hydrogen bond structures into molecules of an electrolyte base material having self-complementary hydrogen bond structures, so as to form the three-dimensional cross-linked network structure. An intermolecular exchange reaction of the disulfide bonds realizes a cross-scale (molecular, micro, and macro-scale) damage sensing response of the electrolyte and a rapid self-healing of the material, and further achieves a multi-level (molecule-component-device-system) self-healing repair function.

Wide-range temperature electrolyte, preparation thereof and lithium ion battery

A method for recycling a lithium iron phosphate positive plate with low energy consumption and low Al content, including: crushing a lithium iron phosphate positive plate to be recycled into a granular material with a particle size of 1-15 mm by using a crusher; heating the granular material obtained in step (1) to 350-500&#xb0; C. in an atmosphere furnace in an inert atmosphere; and keeping the granular material at 350-500&#xb0; C. for 0.5-2 h followed by cooling to a preset temperature to obtain a calcined product; grinding the calcined product obtained in step (2) by using a grinder to obtain a ground product with D50 larger than or equal to 50 &#x3bc;m; and classifying the ground product obtained in step (3) by using an air classifier to remove Al simple substance to obtain a recovered positive material with an Al content below 200 ppm.

Method for recycling positive plate of lithium-ion battery

A method for preparing a non-corrosive fire extinguishing agent, including combining a methyl phosphate organosilane material and a perfluorohexanone to prepare the fire extinguishing agent.

Method for preparing non-corrosive fire extinguishing agent

Disclosed is a method for improving the performance of a layered electrode material. An interlayer spacing of the layered electrode material is measured and donated as (b). A salt compound is selected and added into a solvent with a molecular diameter of (c) to prepare an electrolytic solution, where a diameter (a) of a cation in the salt compound is smaller than the interlayer spacing (b), and c&#x3e;b&#x2212;a. The electrolytic solution is used as the working electrolytic solution for the layered electrode material.

Method for improving performance of layered electrode materials

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Hubei, China

Shun Tang