What are the main materials of lithium batteries?
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Carbon anode material
The actual negative electrode materials used in lithium-ion batteries are basically carbon materials, such as artificial graphite, natural graphite, mesocarbon microspheres, petroleum coke, carbon fiber, pyrolysis resin carbon, etc.
Tin-based anode material
Tin-based anode materials can be divided into tin oxides and tin-based composite oxides. Oxides refer to oxides of metal tin in various valence states. There are no commercial products.
There are no commercial products.
Including tin-based alloys, silicon-based alloys, germanium-based alloys, aluminum-based alloys, antimony-based alloys, magnesium-based alloys and other alloys, there are also no commercial products.
Carbon nanotubes, nano-alloy materials.
According to the latest market development trend of lithium battery new energy industry in 2009, many companies have begun to use nano-titanium oxide and nano-silicon oxide to add to the previous traditional graphite, tin oxide, and carbon nanotubes, which greatly improves the charging and discharging of lithium batteries. volume and charge and discharge times.
What are the causes of battery explosions?
1. The internal polarization is large;
2. The pole piece absorbs water and reacts with the electrolyte;
3. The quality and performance of the electrolyte itself;
4. When injecting liquid, the amount of liquid injection cannot meet the process requirements;
5. The laser welding sealing performance is poor in the assembly process, and the air leaks when the air leakage is detected;
6. Dust and pole piece dust are easy to cause micro-short circuit first;
7. The positive and negative plates are thicker than the process range, and it is difficult to enter the shell;
8. The problem of liquid injection and sealing, the poor sealing performance of steel balls leads to air bulging;
9. The incoming shell material has a thick shell wall, and the shell deformation affects the thickness;
10. The high ambient temperature outside is also the main reason for the explosion.
High quality lithium batteries supplier
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