Correlation between various technical indexes of separator
The increase of fine fiber content in the partition fiber ratio will improve the appearance performance, increase the liquid absorption, increase the penetration speed, and reduce the maximum pore diameter, which is beneficial to the partition.
However, at the same time, the elasticity of the separator will be reduced, the strength will be reduced, and the resistance will be increased. Adding coarse fibers can improve the barrier's ability to prevent the lead paste from falling off and oxygen transfer, while improving the barrier's electrolyte retention ability can only be achieved by adding fine fibers. At the same time, the manufacturing cost of the barrier increases with the increase of the content of fine fibers.
Of course, the results of these additions are not absolute, and the manufacturing technology of the separator also affects the performance of the separator, that is, using the same ratio of coarse to fine fibers, different separator manufacturers will produce AGM separators with greatly different performance.
Therefore, excessive pursuit of a certain technical index will inevitably lead to the loss of control of other technical indexes. These technical indicators must be balanced to achieve the best comprehensive performance of the separator. It is very important to master and grasp the relationship between various technical indicators of the separator.
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