Countermeasures to deal with thermal runaway of lithium 3400mah 3.7v 18650 battery

　　Thermal runaway of lithium 3400mah 3.7v 18650 battery is caused by the thermal variability of the lithium battery electrolyte, the thermal variability of the lithium battery electrolyte and the positive and negative stage management systems, the diaphragm material is too thin, and the temperature is too high. Certain effective measures can be taken from two aspects: external management and internal design, and the internal temperature, voltage, and standard air pressure can be controlled to achieve safety goals. In addition, after the 3C lithium battery is manufactured, it must be tested. The high-current spring microneedle module can have stable connection and conduction, can transmit large currents and solve small gaps, and has stable and reliable performance. It can ensure the reliability of 3C lithium battery detection.

　　Countermeasures to deal with thermal runaway of lithium 3400mah 3.7v 18650 battery

　　external management methods

　　1) PTC (positive temperature coefficient) components: Installing PTC components in lithium 3400mah 3.7v 18650 battery comprehensively takes into account the working pressure and temperature inside the rechargeable battery. When the rechargeable battery heats up due to overcharging, the internal resistance of the battery increases rapidly. Then the current is limited, so that the current between the positive and negative is the working voltage, realizing the automatic maintenance function of the battery.

　　2) Explosion-proof valve: When the internal pressure of the rechargeable battery is too high due to an abnormality, the explosion-proof valve deforms and disconnects the wires placed inside the rechargeable battery for connection, terminating battery charging.

　　Improve lithium battery electrolyte management system

　　Lithium battery electrolyte is the blood of lithium 3400mah 3.7v 18650 battery. The properties of lithium battery electrolyte directly determine the performance of the battery, and play an important role in the battery's capacity, operating temperature range, circulation performance and safety factor. As long as the main materials of rechargeable batteries (including metal electrodes, diaphragm materials and electrolyte solution materials) do not undergo disruptive changes in the short term, improving the reliability of lithium battery electrolytes is a way to improve the safety factor of lithium 3400mah 3.7v 18650 battery. Effective Ways.

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