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The effect of drying temperature on battery life

The effect of drying temperature on battery life is significant. Here are a few key points:

The relationship between temperature and battery life

For every 10 ° C increase in temperature, the rate of most electrochemical reactions will almost double. This means that the average use temperature increases by 10 ° C, and the life expectancy of the battery will be halved. If the battery is used at 40 ° C instead of 20 ° C, its life is expected to be only a quarter of the normal service life.

The effect of drying temperature on battery performance

In the production and manufacture of lithium batteries, the drying process is a key step to remove water. Water has a great impact on the performance of lithium batteries, including voltage, internal resistance, self-discharge and other indicators. Excessive moisture content can lead to product obsolescence, quality degradation, and even product explosion. Therefore, before the battery injection and sealing must be vacuum baked, the purpose is to remove water.

The relationship between drying efficiency and temperature

In the modeling and analysis of drying process of lithium ion battery electrode based on unsteady drying dynamics, it is pointed out that drying rate is closely related to electrode surface temperature, thickness and other factors. Experimental verification proved the best parameters in the study range: a temperature of 363.15 K (about 90 ° C) and an air flow velocity of 2.3 m/s led to a higher drying rate, as well as good mechanical properties.

The effect of drying temperature on the battery electrode

In the lithium battery manufacturing technology and process, it is mentioned that the setting of drying temperature is not arbitrary, which is related to the existence of water in the solid substance before the lithium battery injection. For the attached water, it can be volatilized naturally at normal temperature and pressure. For absorbing water, it can be evaporated at about 105℃ under normal pressure; The evaporation of combined water under normal pressure usually needs to reach more than 150℃.

The influence of temperature on the battery cycle life

In the factors affecting the health of the mobile phone battery, it is mentioned that the capacity of the battery cycle life can still maintain more than 80% of the initial capacity after 800 times at a temperature of 25°, but if you use it under high temperature conditions, the capacity may only be 80% of the initial after 300 cycles.

CONCLUSION

In summary, drying temperature has a direct and significant effect on battery life. Too high or too low a drying temperature can have a negative impact on the performance and life of the battery. The proper drying temperature can ensure that excess water is removed during the production process, while maintaining the structure and performance of the battery material, thus extending the service life of the battery.

UPS BATTERY SERIES

UPS (Uninterruptible Power Supply) batteries are an important component of power supply systems designed to provide stable power support for electronic devices.

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