Preparation and properties of titanate anode materials for lithium ion batteries-Guangzhou ESG New Energy Technology Co., Ltd.

Preparation and properties of titanate anode materials for lithium ion batteries

Release Time: 2022-05-27

The spinel structure Li Cr Ti O4, Li Fe Ti O4, Li2Zn Ti3O8, Li2Mg Ti3O8 anode materials have the advantages of stable structure, low cost, friendly environment and excellent electrochemical performance. It is a kind of potential anode material for lithium ion batteries. The effect of time and time on the electrochemical properties of titanate anode materials and the electrochemical mechanism of new titanate anode materials.1., Li Cr Ti O4 negative electrode was synthesized by high temperature solid phase method. The results showed that the samples of Li Cr Ti O4 materials in the electrochemical cycle process were stable and stable at.800 C -12h synthesis. Excellent multiplier performance. The discharge capacity of the material at the current density of 0.5C, 1C, 2C and 5C is 158m Ah? G-1146m Ah? G-1140m Ah? G-1 and 126m? The.Li Fe PO4/Li Cr Ti O4 full battery has a stable charging and discharging platform ~1.8V. The discharge capacity of the material is 116.8m Ah? G-1 at the 0.2C ratio. After 100 weeks, the capacity retention of the material is maintained at the capacity of high temperature solid method at 700. The results show that carbon coating helps to improve the conductivity of the material and is beneficial to the insertion and removal of lithium ion in the Li Fe Ti O4 material. Therefore, the electrochemical performance of the spinel structure Li Fe Ti O4/C material is superior to the Li Fe Ti O4 material. The discharge capacity of 205m Ah? G-1 is maintained at the time of 308.3m Ah? G-1. at 5C. It shows that the material has good multiplier performance,.4. using high temperature solid-phase method to synthesize Li2MTi3O8 (M=Mg, Zn) materials. The platform, Li2MTi3O8 (M=Mg, Zn) material has excellent cyclic stability and good Kulun efficiency. Li2Zn Ti3O8 material has more excellent electrochemical performance than Li2Mg Ti3O8. At room temperature, when the charge discharge ratio is 0.5C, the initial discharge capacity of Li2Zn Ti3O8 is 225.5m Ah. The first discharge capacity held at 250m Ah? G-1.Li2Mg Ti3O8 is 215.6m Ah? G-1100 cycle after maintaining 225m Ah? G-1..

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