Guangdong Brunp Recycling Technology Co., Ltd

Hunan Brunp Recycling Technology Co. Ltd.

Hunan Brunp Vehicles Recycling Co., Ltd.

Hunan Brunp Ev Recycling Co., Ltd.

Linlin Mao

Dingshan Ruan

Changdong Li

Bin Li

Zhenhua Zhang

Xia Fan

Jianfeng Xu

Yong Cai

Yulong Liao

Ding Yang

Xingyu Wu

Shenghe Tang

The present disclosure belongs to the technical field of battery materials, and discloses a silicon/carbon composite anode material, and a preparation method and use thereof. The preparation method includes the following steps: S1. dissolving a graphite anode powder in an acid solution, and conducting solid-liquid separation (SLS) to obtain a precipitate; and washing and drying the precipitate, adding a reducing agent, and subjecting a resulting mixture to heat treatment to obtain a purified graphite material; and S2. mixing a modified silicon powder with the graphite material, adding a resulting mixture to a polyimide (PI)-containing N,N-dimethylformamide (DMF) solution, and stirring; and subjecting a resulting mixture to distillation and then to carbonization to obtain the silicon/carbon composite anode material.

Silicon-carbon composite anode material, and preparation method and use thereof

A method for safely oxidising roasting NdFeB powder material. The method may include: S: magnetizing and drying the NdFeB powder material; S: heating the magnetized and dried NdFeB powder material to spontaneous combustion, and then preparing the spontaneous combustion product into a powder; and S: magnetizing and then oxidising roasting the powder to obtain NdFeB oxide.

Method for safely oxidizing and roasting neodymium-iron-boron powder and application thereof

Disclosed are a pre-lithiated lithium ion positive electrode material, a preparation method therefor and use thereof. The lithium ion positive electrode material has a chemical formula of LiO/[AMe]-LiAO, wherein A comprises M, and wherein M is at least one of Ni, Co, and Mn; and wherein Me is at least one of Ni, Mn, Al, Mg, Ti, Zr, Y, Mo, W, Na, Ce, Cr, Zn or Fe; and wherein 0<x<0.1. The material is co-doped with multiple elements, and these elements act synergistically to inhibit the irreversible phase change at a high voltage and improve the stability of the structure of a substrate. The spinel phase AMeOstructure contains the doping elements, which work together to improve the interfacial activity of the material and introduce more electrochemically active sites.

Pre-lithiated lithium ion positive electrode material, and preparation method therefor and use thereof

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Guangdong, China

Linlin Mao