ELECTROLYTE FILLING AND SOAKING ACCELERANT SYSTEMS AND METHODS

Abstract

Electrolyte filling and soaking acceleration systems and methods are disclosed. An exemplary system for electrolyte acceleration of battery cells, such as lithium ion battery cells or similar products, includes an electrolyte conditioning system and an assessment system. The electrolyte conditioning system can accelerate the filling and soaking process by transmitting ultrasound of a first ultrasound frequency, loaded from excitation parameters, into the battery cells to reduce electrolyte surface tension. The reduced surface tension enables the electrolyte to more easily infiltrate each battery cell and its structures, eliminating both pockets of unfilled electrolyte within the battery cell and gas bubbles in the electrolyte. The assessment system can perform ultrasound interrogation of the battery cell at a second frequency, generate soak characteristic data in response to the interrogation, and use the soak characteristic data to adjust the excitation parameters of the conditioning system to improve its performance.

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