1. Cause analysis
The main reasons for the appearance of particles on the surface of lithium battery pole pieces are as follows:
1. Manufacturing process issues: During the production process of lithium batteries, if the operation is improper, the process is not precise, or the production environment is dirty, it may cause pollution, thereby forming particles with adverse effects on the surface of the battery.
2. Material selection issues: Poor material quality or too many impurities in lithium batteries may also cause particles to appear on the surface of the lithium battery.
3. Damage during transportation: Lithium batteries may be affected by vibration, collision and other factors during transportation, resulting in particles forming on the surface of the battery.
4. Working environment factors: Environmental factors such as dust on the operating table and machine room equipment may also cause particles to appear on the surface of lithium batteries.
5. Self-corrosion: Due to the quality of the lithium battery itself or after long-term use, corrosion of the chemical substances inside the lithium battery may occur, forming tiny particles on the surface of the lithium battery.
6. Production and processing pollutants: During the production and processing process, machine cutting of lithium batteries, battery maintenance, and disposal of garbage items may produce fine particles. Impurities such as silica dust, paraffin, sand, and iron filings can also contaminate the surface of lithium batteries.
2. Solution
For the above problems, you can take the following solutions:
1. Cleaning and maintenance method: Use cotton or paper towels to apply a layer of alcohol or detergent on the battery surface, and then wipe it with clean cotton or paper towels. The advantage of this method is that it has good decontamination effect and fast speed, but it requires Pay attention to the dosage and do not use too much, otherwise it may affect the efficiency of the battery.
2. Diatom mud method: Diatom mud is a common purifier. Its tiny pore structure can effectively absorb particles on the surface of lithium batteries, and then wipe it with a clean cloth.
3. Maintenance and protection methods: When using lithium batteries, you should pay attention to keeping the environment clean and tidy to avoid contamination of the battery surface. At the same time, you should also pay attention to regular maintenance, such as cleaning, inspection, charging, and discharging of the battery, so as to ensure that the battery During long-term use, there will be no problems such as particles on the surface.
4. Other precautions: Try to use batteries with reliable quality; try to avoid strong vibration or impact on the battery; keep the working environment clean and tidy to reduce the impact of environmental factors such as dust on the battery; inspect and maintain the battery regularly; avoid inappropriate use charger or charging method, etc.
