What is the effect of electrolyte infiltration on the performance of lithium-ion batteries?

When lithium batteries are used up to the standard of disuse or when they suddenly fail, they are often disassembled to analyze what is causing the battery's performance to decay or plummet. During the disassembly analysis of lithium batteries, it was found that the battery with poor circulation performance was often related to the poor infiltration effect of electrolytes on the electrode. When the electrolyte infiltration effect is not good, the ion transmission path becomes longer, which hinders the travel of lithium ions between the positive and negative poles. The electrode that does not contact the electrolyte can not participate in the battery electrochemical reaction, and the battery interface resistance increases, affecting the lithium battery. The multiplier performance, discharge capacity and service life.

Then, in order to avoid all kinds of drawbacks, we need to find a way to make the electrolytic fluid as infiltration electrode as possible. Of course, considering the cost, we need to use as much electrolyte as possible.

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