Power battery housing cleaning agent

Abstract

The invention provides a power battery housing cleaning agent. The power battery housing cleaning agent comprises, by weight, 2-4 parts of sodium carbonate, 10-20 parts of ethanol, 2-3 parts of fatty alcohol polyoxyethylene ether, 1 part of sodium citrate and the balance water. A part of components in the power battery housing cleaning agent can be dissolved to form other substances and the substances and impurities undergo a chemical reaction so that the substances change pH of the cleaning agent, impurities outside a steel housing can be easily removed and work efficiency is high. The power battery housing cleaning agent has a low manufacturing cost, can be prepared easily and is convenient for promotion and use.

Description

[0001] 【Technical field】 [0002] The invention relates to a cleaning product, in particular to a cleaning agent for a power battery casing. [0003] 【Background technique】 [0004] Lithium iron phosphate batteries often clean their shells many times during the production process, mainly to keep the steel shell clean enough to avoid rust. This is because once the steel shell of the battery is rusted, it will increase the internal resistance of the battery and affect the performance of the battery. Especially when the outer coating of the steel shell of the battery is damaged, the corrosion rate will be further accelerated. When the steel shell is corroded seriously, Then the electrolyte inside the battery will leak, and even cause safety hazards such as fire, and lithium iron phosphate batteries are often installed in vehicles such as cars or buses, so their safety requirements are particularly high. [0005] Existing cleaning agents can generally be divided into the following...

AI Technical Summary

Problems solved by technology

This is because once the steel shell of the battery is rusted, it will increase the internal resistance of the battery and affect the performance of the battery. Especially when the outer coating of the steel shell of the battery is damaged, the corrosion rate will be further accelerated. When the steel shell is corroded seriously, Then the electrolyte inside the battery will leak, and even cause fire and other safety hazards, and lithium iron phosphate batteries are often installed on vehicles such as cars or buses, so their safety requirements are particularly high

[0005] Existing cleaning agents can generally be divided into the following situations. One, simple inorganic salt solution / alcohol solution cleaning agent, this kind of cleaning agent is not easy to completely clean the dry electrolyte remaining on the outer surface of the steel shell, and the steel shell will still Corroded and rusted; second, use a compound cleaning agent, which has complicated cleaning methods, low work efficiency, high labor costs, and many utensils and equipment used for cleaning, and the space occupation rate is high

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