Positive electrode: lithium iron phosphate, lithium manganese oxide or ternary material, lithium nickel manganese oxide.

　　Negative electrode: Lithium titanate material.

　　Diaphragm: A lithium battery separator with carbon as the negative electrode.

　　Electrolyte: Lithium battery electrolyte with carbon as the negative electrode.

　　Battery case: Lithium battery case with carbon as the negative electrode

　　1. Compared to other types of lithium-ion power batteries, the energy density will be lower.

　　2. The problem of bloating has always hindered the application of lithium titanate batteries.

　　3. Compared to other types of lithium-ion power batteries, the price is relatively high.

　　4. There are still differences in battery consistency, and as the number of charges and discharges increases, the differences in battery consistency will gradually increase.

　　4. During the process of lithium ion insertion and extraction, there is a significant volume change and poor cycling stability.

　　Compared with carbon materials, spinel type Li4Ti5O12 has significant advantages:

　　1. It is a zero strain material with good cyclic performance;

　　2. The discharge voltage is stable, and the electrolyte does not decompose, improving the safety performance of lithium batteries;

　　3. Compared with carbon negative electrode materials, lithium titanate has a high lithium ion diffusion coefficient (2 * 10-8cm2/s) and can charge and discharge at high rates.

　　4. The potential of lithium titanate is higher than that of pure metallic lithium, and it is not easy to generate lithium dendrites, providing a basis for ensuring the safety of lithium batteries.

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