Education: Master's degree

Degree: Master

Status: Graduated

Thesis title: Electrochemical properties of tin phosphide self-supported anode materials

Research Direction: Anode materials for lithium-ion batteries

Graduated from: Xinen Qingdao Integrated Circuit Co.

Introduction: Starting from the current problems of low specific capacity and high self-weight of electrode for lithium-ion battery anode materials, the objective is to improve the reversible specific capacity, cycling stability and multiplicative performance of metal phosphide electrode. Aiming at the problems of agglomeration of active material, large volume expansion during electrochemical reaction and poor cycling stability of metal phosphide electrode, and the problem of low electrode conductivity of self-supported anode without metal collector in general, electrostatic spinning technology and heat treatment process were used to prepare a high specific capacity tin phosphide as the active material and add Cochin black as the conductive agent and dispersant with good mechanical strength and The self-supported negative electrode (Sn4P3-KB@CNF) of tin phosphide composite carbon nanofiber with good mechanical strength and flexibility was prepared by using electrostatic spinning technology and heat treatment process. And the effects of the content of each component on the electrode structure and electrochemical performance were investigated by adjusting the content of cotinine black and active substance addition, combined with material characterization means and electrochemical performance testing.

Entrance date: 2019-09-01

Graduation date: 2022-06-30

Email: sssunwwwei@163.com