Liquid-replaceable lithium slurry battery module and liquid replacing method thereof

Abstract

The invention provides a liquid-replaceable lithium slurry battery module. The liquid-replaceable lithium slurry battery module comprises a housing and one or a plurality of lithium slurry battery cells, wherein the housing comprises a top cover of the housing and a lower shell of the housing; the lithium slurry battery cells are accommodated in the shell; and the shell of each lithium slurry battery cell is provided with an injection port and a discharge port, the injection port can be connected or disconnected with the ports of a liquid injection device and a gas injection device so as to realize injection of liquid or gas into the lithium slurry battery cell, and the discharge port can be connected or disconnected with the ports of a suction device and an electrolyte gathering device soas to realize discharge of liquid or gas in the lithium slurry battery cell. Moreover, the invention also provides a liquid replacing method for the lithium slurry battery module. Through liquid replacing of the lithium slurry battery module, the service life of the battery can be effectively prolonged, and the performance of the battery can be improved.

Description

technical field [0001] The invention relates to the field of lithium slurry batteries, in particular to a liquid-replaceable lithium slurry battery module and a liquid-replacement method thereof. Background technique [0002] Lithium slurry battery is a new type of high-energy battery. The conductive paste inside the electrode sheet contains a certain proportion of conductive particles suspended or precipitated in the electrolyte. When the battery is subjected to external impact or vibration, because this part of the conductive particles does not bond Fixed, so it can move in the electrolyte and form a dynamic conductive network. The conductive particles in it can only contain conductive agents, or they can be composite particles of active materials and conductive agents. The conductive paste in lithium paste batteries can avoid the problem of battery capacity drop and cycle life attenuation caused by the falling off or loosening of traditional lithium battery electrode mate...

AI Technical Summary

Problems solved by technology

[0003] During the long-term use of lithium slurry batteries, due to the occurrence of side reactions, the electrolyte will gradually become invalid, and the SEI film formed on the surface of the electrode active material and even the current collector will continue to thicken due to side reactions, which will lead to internal corrosion of lithium slurry batteries. Increased resistance, decreased cycle life

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