Domestic replacement of NTC chips to speed up

　　The new round of capacity competition and market share competition in the power battery industry has entered a white-hot stage. The core manufacturing link has become the core, and getting rid of the "stuck neck" of core components has become the focus of battery companies and equipment companies at this stage. At the same time, it also provides domestic replacement of core components. Excellent window period.

　　In the field of temperature sensors, due to the preferences of end users and the long-standing usage habits of domestic equipment companies, high-end temperature sensors have long been highly dependent on imports.

　　The good news is that domestic NTC companies continue to overcome difficulties, from reinforcement to enhancement in the fields of technological innovation, cost advantage, delivery cycle, and after-sales service. Domestic NTC companies, including Kemin Sensor, have begun to emerge and accelerate domestic substitution. process.

　　Power battery thermal management temperature sensor glass-sealed high-temperature high-end high-precision NTC chips mainly rely on imports. Domestically, sensors made of silver electrode NTC chips and silver-end SMD NTC chips are used. During the use of battery thermal management, it is easy to cause sensor failure due to silver migration. False alarms of abnormal phenomena such as high temperature result in high battery pack repair rate, extremely high cost, and increase the safety risk of battery pack use.

　　According to Kong Weiting, chairman of Kemin, Kemin sensor has introduced single-ended gold electrode NTC chips from Japan as early as 2017 to produce temperature sensors. Its application in the field of power batteries and energy storage has basically eliminated the occurrence of the above-mentioned failure problems and ensured the heat of electric vehicles. Managed security.

　　But the disadvantage is that this kind of gold electrode NTC chip can only be produced by Japanese companies in the world, the purchase cost is high and the delivery time cannot be guaranteed.

　　In this context, Kemin sensor continued to overcome difficulties in technology, and finally developed NTC gold electrode temperature sensor for 4 years. It achieved initial success from chip formula, production process and packaging automatic production equipment. The product has undergone many reliability tests. It has reached the same international level of reliability, and has passed the international certification of automotive-grade passive components of AECQ200.

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