Lithium Battery and NTC Temperature Sensor

A lithium battery is a battery that uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution. Lithium batteries can be repeatedly charged and discharged, and their safety, capacity, self-discharge rate and cost performance are better than ordinary batteries. Lithium batteries have the characteristics of high charging efficiency and good safety. Lithium batteries are divided into three types: liquid lithium batteries, polymer lithium batteries or plastic lithium batteries. The working principle is basically the same, and the main difference is that the electrolyte is different.

The lithium battery has installed NTC temperature sensor, which can monitor its surface temperature in real time, and transmit the temperature information to the microcontroller. The temperature value of the lithium battery will be displayed on the digital display on the microcontroller. When the temperature exceeds the preset temperature value, it will drive The single-chip microcomputer turns on the fan located on the upper surface of the casing, and uses the air-cooling mode to cool down the aluminum-plastic packaging film to prevent the lithium battery from heating up too fast, and the temperature is too high, which will cause the charging rate to drop, causing the battery to catch fire or even explode. create a threat.

Exsense Epoxy coating NTC temperature sensor for lithium battery is to encapsulate NTC thermistor chip into NTC thermistor element by insulating layer, encapsulate it into a water drop shape, connect the wire, peel and tin the tail or add a connector to form a temperature sensor. It has the advantages of stable performance, high reliability, small size, fast induction, high cost performance, good heat resistance cycle, etc. It is suitable for lithium batteries, new energy vehicles, smart homes and other fields.

Reference data.

 CN213660476U "A fast charging lithium polymer battery