The Secondary Battery And Top Insulator For Secondary Battery

Abstract

An insulation plate for a rechargeable battery, according to one embodiment of the present invention, in order to solve said problem, is an insulation plate which is inserted in a case of a rechargeable battery, and which comprises: a glass fiber formed by intersecting weft and warp glass fiber yarns; and silicone rubber coated on at least one surface of the glass fiber.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2018-0010900 filed on January 29, 2018 and Korean Patent Application No. 10-2018-0125529 filed on October 19, 2018, which are incorporated by reference The patent application is hereby incorporated in its entirety. technical field [0003] The present invention relates to a top insulator for a secondary battery and a manufacturing method thereof, and more particularly, to a top insulator which is improved in characteristics such as heat resistance and chemical resistance and which is used in a punching process. A secondary battery that suppresses generation of dust, and a top insulator for the secondary battery. Background technique [0004] Generally, secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium-ion polymer batteries. Such secondary batteries are being used in small products ...

AI Technical Summary

Problems solved by technology

However, thermoplastic resins have a rather low melting point of 200°C to 250°C

In addition, there is a problem that when the internal temperature of the secondary battery 2 rises sharply above 250° C., the top insulator 26 melts to cause a short circuit.

However, the melting point of phenol itself is very low at a temperature of 40°C, and even if it is applied to a glass fiber fab

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