How well does lithium battery decompose in winter?

Introduction The attenuation degree of lithium batteries in winter depends on winter temperature and personal usage habits, but under normal circumstances, it will decrease by about 10%. Lithium batteries can generally be charged and discharged for 300

How well does lithium battery decompose in winter?

It depends on winter temperature and personal usage habits, but it will generally decrease by about 10% under normal circumstances.

Lithium batteries can generally be charged and discharged 300 to 500 times. It is better for lithium batteries to be partially discharged rather than fully discharged, and try to avoid frequent full discharges. Once the battery is disconnected, the clock begins to move.

Whether used or not, the lifespan of lithium batteries is only a few years. The decrease in battery capacity is due to an increase in internal resistance caused by oxidation (which is the main cause of the decrease in battery capacity). Eventually, the battery resistance will reach a certain point. Although the battery is fully charged at this time, it cannot release the stored energy.

Ifpossible, charge the battery to 40% and place it in a cool place. In this way, the battery protection circuit can work for a long time. If the battery is placed in high temperature after being fully charged, it will cause serious damage to the battery.

Therefore, when using a fixed power supply, the battery is in a fully charged state and the temperature is generally between 25-30°C, which will damage the battery and cause its capacity to decrease .

Detailed information;

Notes on extending the capacity and life of lithium batteries;

1. If you use an external power supply. power your laptop for a long time. If the computer is turned on or the battery charge has exceeded 80%, remove the battery immediately. There is no need to fully charge the battery during a chargenormal, just charge it to about 80%. Adjust the operating system power options and set the power alarm above 20%. The minimum battery power should not be less than 20%.

2. For mobile phones and other small electronic devices, the power cord (including the USB interface for charging function) should be unplugged immediately after charging. Keeping it connected will damage the battery. Charge frequently, but it is not necessary to fully charge the battery.

3. Whether it's a laptop or mobile phone, be careful not to let the battery run out (automatic shutdown).

4. If you want to travel, you can fully charge the battery, but charge electrical devices at any time if conditions permit.

5. Use a smarter, more energy-efficient operating system.

Reference source; Baidu Encyclopedia - Lithium Battery

The reasons why lithium batteries are not durable in winter are as follows: < /p>

1. In low temperature environments, the viscosity of the electrolyte increases and even partially solidifies, leading to a decrease in the conductivity of lithium-ion batteries.

2. The compatibility between the electrolyte, negative electrode and separator deteriorates in low temperature environments.

3. Lithium is seriously precipitated from the negative electrode of lithium-ion batteries in low temperature environments, and the precipitated lithium metal reacts with the electrolyte, and the deposition of the product causes the thickness of the lithium to increase. solid electrolyte interface (SEI).

4. In low temperature environments, the diffusion system within the active material of lithium batteriesium-ion decreases and the resistance to charge transfer (Rct) increases significantly.

Lithium battery usage instructions:

1. Keeping lithium-ion batteries properly charged and discharged can extend battery life. Keeping the lithium-ion battery power between 10% and 90% is beneficial to protect the battery. This means that when charging batteries of digital products such as mobile phones and laptops, it is not necessary to reach the maximum value.

2. If digital products equipped with lithium-ion batteries are exposed to sunlight or stored in hot cars, it is better to turn off these products because if the operating temperature exceeds 60 degrees Celsius, the lithium-ion battery will accelerate aging .

3. If the cell phone battery needs to be charged every day, the reason may be that the bThe battery is faulty or needs to be “retired” for laptop owners if it is plugged in for a long time. time, it is best to remove it. Remove the battery (high heat generated by the computer during use is not good for the laptop battery).

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