Byd Company Limited

Shenzhen Byd Auto R&d Company Limited

Zhenyue Wu

Qiang Wang

Yan Zhu

Lu Zhang

Li Ma

Methods of preparing negative active materials and negative active materials are provided herein. The preparation methods include: A) mixing a carbon material, an organic polymer, a Sn-containing compound&#x2014;optionally with water&#x2014;to obtain a mixed solution system; B) adding a complexing agent into the mixed solution system obtained in step A optionally while stirring to form an intermediate solution; C) adding a reducing agent into the intermediate solution obtained in step B to a reaction product; D) optionally filtering, washing and then drying the reaction product to obtain the negative active material.

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Shenzhen, China

Zhenyue Wu