Temperature detector and preparation method thereof, and lithium battery structure combination

Abstract

The invention relates to the technical field of lithium batteries, in particular to a temperature detector, a preparation method thereof and a lithium battery structure combination. The temperature detector comprises an insulating substrate and a resistance temperature sensing element arranged on the insulating substrate, the resistance temperature sensing element is made of copper metal and nickel metal, the resistance temperature sensing element is connected with a connecting circuit electrically connected with external testing equipment, and the resistance temperature sensing element is electrically connected with the external testing equipment through cooperation of the copper metal and the nickel metal. The bonding performance of the copper metal and the insulating substrate material is well utilized, the preparation difficulty is reduced, further, the nickel metal has high sensitivity, the relatively weak sensitivity of the copper is well made up, the detection accuracy is improved, meanwhile, the nickel metal has a wide temperature detection range which can generally reach-40 DEG C to 60 DEG C, and the nickel metal can be used for detecting the temperature of-40 DEG C to 60 DEG C; therefore, the method can be better applied to different products.

Description

【Technical field】 [0001] The invention relates to the technical field of lithium batteries, in particular to a temperature detector, a preparation method thereof, and a lithium battery structure combination. 【Background technique】 [0002] With the commercialization of lithium batteries, lithium batteries have been widely used in 3C, electric vehicles and energy storage fields. The heating inside the lithium-ion battery is also an aspect that must be paid close attention to during the application process, which is related to the safety of the use process. At present, the monitoring of the internal heat generation of lithium-ion batteries is mainly achieved by directly embedding temperature monitoring elements into the electrode structure. The embedded temperature monitoring elements are likely to affect the battery performance of the electrode structure and affect the battery performance of lithium-ion batteries. At the same time, the sensitivity of temperature monitoring c...

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Problems solved by technology

[0003] In order to solve the defect that the internal temperature monitoring scheme of the lithium-ion battery in the prior art easily leads to a decrease in battery performance, an embodiment of the present invention provides a temperature detector, a preparation method thereof, and a lithium battery structure combination

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