Lithium Titanate battery as a new type lithium ion battery, with high energy density, long cycle life and good safety performance, it has attracted much attention in electric vehicles, energy storage systems and other fields. This article will deeply discuss the structure and composition of lithium titanate battery to help readers fully understand its internal structure and working principle.

I. Basic structure of lithium titanate battery

lithium Titanate battery usually consists of positive electrode, negative electrode, electrolyte and separator, and its basic structure is similar to traditional lithium ion battery, but lithium titanate material is used on the positive electrode material, this is a significant difference between it and traditional lithium batteries.

1. Positive electrode:

   • the cathode material of lithium titanate battery is mainly lithium titanate (Li4Ti5O12), which has a high voltage platform and excellent cycle life. Lithium titanate particles are usually mixed with conductive agent and binder to form positive electrode sheet to increase the conductivity and structural stability of the electrode.

2. Negative electrode:

   • the negative electrode materials generally use graphite or silicon-based materials to form electrochemical reactions with the positive electrode to realize the reciprocating migration of lithium ions between the positive and negative electrodes.

3. Electrolyte:

   • electrolyte is an important component of lithium titanate battery. Organic solvent or polymer electrolyte is usually used to conduct lithium ions between positive and negative electrodes. Good electrolyte can improve the ion conductivity and cycle stability of the battery.

4. Diaphragm:

   • the diaphragm is located between the positive and negative poles to prevent direct contact between the positive and negative poles and prevent short circuit. The membrane is usually made of polymer material, which has good electrolyte conductivity and mechanical strength.

II. Working principle of lithium titanate battery

the working principle of lithium titanate battery is similar to that of traditional lithium ion battery, which realizes the charging and discharging process through the migration of lithium ion between positive and negative electrodes. The main reactions are as follows: