Analysis of battery reasons

发布时间:2025-04-18 15:15:04
 

    Lithium is a metal on the periodic table that is also active in diameter. Due to its small size, it has a high capacity density and is widely welcomed by consumers and engineers. However, if the chemical characteristics are too active, it brings high danger. When lithium metal is exposed to air, it will undergo intense oxidation reactions with oxygen. In order to enhance safety and voltage, scientists have invented materials such as graphite and lithium cobalt oxide to store lithium atoms.

    The molecular structure of these data forms nanoscale small storage grids, which can be used to store lithium atoms. In this way, even if the battery casing breaks and oxygen enters, it will be avoided because the oxygen molecules are too large to enter these small storage compartments, preventing lithium atoms from coming into contact with oxygen. The principle of lithium-ion batteries enables people to achieve both high capacity density and safety goals.

    When lithium-ion batteries are charged, positive lithium atoms lose electrons and oxidize into lithium ions. Lithium ions swim through the electrolyte to the negative side, enter the negative storage compartment, and obtain an electron, which is reduced to lithium atoms. When discharging, all programs are reversed.

    In order to avoid short circuits caused by direct contact between the positive and negative terminals of the battery, a barrier paper with numerous pores will be added inside the battery to prevent short circuits. A good barrier paper may also actively close the pores when the battery temperature is too high, allowing lithium ions to shuttle helplessly and self destruct to avoid danger.

1. Significant internalization!

2. The sheet absorbs water and reacts with the electrolyte to produce gas bubbles.

3. The quality and functionality of the electrolyte itself.

4. The amount of liquid injected does not meet the process requirements.

5. The sealing function of laser welding in the assembly process is poor, resulting in air leakage and leakage testing.

6. Dust and sheet dust are prone to cause micro short circuits, and the specific cause is unknown.

7. The positive and negative plates are thicker than the process category, making it difficult to fit into the shell.

8. The problem of liquid injection sealing is caused by poor sealing function of the steel ball, resulting in air bubbles.

9. The incoming shell material has a thick shell wall, and the deformation of the shell affects the thickness.

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