How To Distinguish The Quality Of Lithium Battery

Lithium battery has the characteristics of high energy density, no memory, and long life, and it has attracted more and more attention from new energy storage. Lead-acid battery memory and low energy density, pollution problems, also increasingly squeezed by the lithium battery market competition. In recent years, there have been a lot of negative reports on lithium batteries, causing people to do not understand and misunderstand lithium batteries. Today I will introduce to you the correct characteristics of lithium batteries, so that you can look at lithium batteries rationally.

we can analyze the quality of lithium batteries from the following points:

1. Internal resistance

Look at the internal resistance, can directly screen out the difference between the machine and the digital cell and the power cell.

Power cell, basic internal resistance within 20. Digital 50 or less. Old battery 60 +. But there are also disassembled machine battery, use time is not long, internal resistance is very low. Mainly reflected in the imported foreign brand cell.

2. Weight

This is also one of the stupid methods, the heavier the material is enough. Lishen 48g, ordinary brand 45g,44g also have. The ternary material inside is less, the cycle life is short.

3. Charge and discharge curve

The battery cabinet machine can be measured, through the discharge performance and charging performance, can intuitively show the difference between the cell.

4. Performance after a period of cycling

After circulating back and forth one hundred times through the battery divider, you can basically distinguish the quality of the cell. Bad capacity decreases, good capacity stabilizes.

5. Battery consistency (important factor)

The higher the consistency of the capacity, internal resistance, charge-discharge curve of the battery produced by the same material and the same process, the better. Whether the battery can be formed into a battery pack on a large scale is critical. The larger the battery pack size, the higher the consistency requirement.