Monitoring method for battery temperature

Abstract

The invention provides a monitoring method for battery temperature. A temperature test paper covers the surface of a battery shell; the temperature test paper is tightly combined with the battery shell; when the inner temperature of the battery changes, the inner temperature is transferred to the temperature test paper through the battery shell and then the color of the temperature test paper is changed, so that the surface temperature of the battery can be acquired. The method provided by the invention can overcome the defects in the prior art; at least one temperature test paper is clung to the battery shell and is used for measuring the surface temperature of the battery, so that each battery temperature state of a monomer cell, a small-size battery pack and a large-size battery pack under the conditions of manufacturing process, detection process, storage process, transportation process, use process, and the like, can be quickly detected; the temperature test paper can be conveniently pasted; no additional instrument or mounting is required; any part can be tested according to the practical condition; the types of the temperature test paper and multi-point test can be randomly selected; the monitoring method has very positive effect in monitoring and screening the battery.

Description

technical field [0001] The invention relates to a battery temperature monitoring method, which belongs to the technical field of batteries. Background technique [0002] As an important part of renewable energy and new energy, batteries are not only seen in portable electrical appliances, but also in energy storage, electric bicycles, and electric vehicles, which have an increasingly important impact on people's lives. With the development of the battery industry, battery-related safety issues have become more and more prominent, and temperature, as an important indicator of batteries, has received more and more attention. [0003] At present, in the battery temperature test system, the traditional battery temperature monitoring method is through temperature sensor detection and external electronic detection equipment, which requires special instruments or equipment, which is only suitable for the monitoring of a small number of batteries in the test or production process, s...

AI Technical Summary

Problems solved by technology

[0003] At present, in the battery temperature test system, the traditional battery temperature monitoring method is through temperature sensor detection and external electronic detection equipment, which requires special instruments or equipment, which is only suitable for the monitoring of a small number of batteries in the test or production process, such as large battery packs When monitoring, only a small number of batteries can be sampled and monitored, and then transmitted to the electronic display device, the cost is high, and the installation and disassembly are complicated

In addition, the traditional method cannot monitor the abnormal temperature rise of the battery during the manufacturing process, such as liquid injection, chemical composition, transfer, storage, etc.

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