-Which is better, imported batteries or domestic batteries?

Which is better, imported batteries or domestic batteries?
author:enerbyte source:本站 click37 Release date: 2024-10-21 08:45:22
abstract:
There are many types of batteries, so it cannot be simply said which one is better. Even for the same type of battery, it depends on whether the actual application conditions are the same. Only in this way can there be a certain degree of comparability to determine which is better.Taking the commonl...

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There are many types of batteries, so it cannot be simply said which one is better. Even for the same type of battery, it depends on whether the actual application conditions are the same. Only in this way can there be a certain degree of comparability to determine which is better.


Taking the commonly known lithium batteries as an example.


In terms of raw material manufacturing, for example, positive and negative raw materials, battery separators, etc., a large amount of these need to be imported from abroad. In general, the quality in these aspects in China is not as good as that abroad, and there is a certain gap. However, in terms of manufacturing processes, especially for power lithium batteries used in the new energy vehicle field, the domestic production and manufacturing level is better than that abroad.


Many friends think that if the product label says it is an imported battery, it must be an imported battery. Coupled with the fact that the battery is more expensive, they think the quality must be good. Little do they know that in fact, many domestic battery manufacturers receive production orders that are required by foreign customers for OEM. That is, after domestic battery cell manufacturers produce the battery cells, they affix the brand information of foreign customers. After going abroad for a round and then entering the country again, it becomes an imported battery. In such a case, you don't even know whether it is domestic or produced by foreign manufacturers themselves, so naturally there is no comparison.


Furthermore, to compare the quality of batteries, the first thing to ensure is that they must be the same type of battery and the application conditions must be basically the same. Only in this way is there comparability.


For example, among the popular lithium batteries now, there are polymer lithium batteries, lithium iron phosphate batteries, and ternary lithium batteries. Due to different actual application requirements, the performance of the batteries is also different.


For another example, polymer lithium batteries can be divided into low-temperature polymer lithium batteries, regular polymer lithium batteries, and high-rate batteries that support high-rate and high-current discharge.


Obviously, if it is used in low-temperature regions, the performance of low-temperature polymer lithium batteries is definitely better than that of regular polymer lithium batteries. And if it is for applications that require high-rate and high-current discharge, high-rate batteries are definitely better than the other two types of batteries.


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