-Introduction to maintenance and precautions for lithium-ion battery packs

Introduction to maintenance and precautions for lithium-ion battery packs
author:enerbyte source:本站 click138 Release date: 2024-01-05 10:04:44
abstract:
(1) In terms of chargingChoosing an adapter charger: Choosing a charger that matches the power can make lithium-ion battery pack charging more stable and less prone to accidents.Do not overcharge: Lithium ion battery packs have no memory effect, do not overcharge to activate the battery, nor overcha...

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(1) In terms of charging

Choosing an adapter charger: Choosing a charger that matches the power can make lithium-ion battery pack charging more stable and less prone to accidents.

Do not overcharge: Lithium ion battery packs have no memory effect, do not overcharge to activate the battery, nor overcharge to remember the maximum capacity of the battery. Although most lithium-ion battery pack chargers have charging protection or protection in this regard, developing good charging habits is more beneficial for extending the lifespan of lithium-ion batteries just in case.

(2) In terms of discharge
 Besides not overcharging, excessive discharge is also not advisable. Due to the need to maintain a certain amount of lithium ions in the negative electrode to maintain structural stability, over discharge causes more lithium ions to migrate out, disrupting the stable structure of the negative electrode and causing irreversible damage.

(3) Operating temperature environment

Charging environment temperature: The optimal charging environment for lithium-ion batteries is 5 to 45 degrees Celsius. Although 0 to 5 degrees Celsius can still charge normally, the charging current needs to be relatively reduced (in an environment of 5 to 45 degrees Celsius) in order to maximize battery life.

Charging at high temperatures or above 45 degrees Celsius can reduce battery performance and even degrade the electrolyte inside the battery. Low temperature or below 0 degrees Celsius can cause an increase in internal resistance, resulting in an extended charging time. In addition, when charging in an environment below 0 degrees Celsius, the battery will be in a sub freezing state, which can cause irreversible damage to the battery.

Discharge environment temperature: The discharge environment temperature of lithium-ion battery packs is generally -20 ℃~60 ℃. However, when it is lower than 0 ℃, the performance of lithium-ion batteries will decrease, and the discharge capacity will correspondingly decrease. Therefore, the working temperature for lithium-ion batteries with complete performance is usually 0~40 ℃. Some specially customized lithium-ion batteries have different temperatures, and some can even operate normally in environments of hundreds of degrees Celsius.

(4) Storage and maintenance

lithium-ion batteries can be stored in a clean, dry, and ventilated environment with a temperature of -5 to 35 ℃ and a relative humidity of not more than 75%. They should be prevented from coming into contact with corrosive substances, kept away from sources of fire and heat, and not placed in direct sunlight. The battery should not be disassembled at will. If the battery is stored for a long time, the battery capacity should be maintained at 30% to 50% of the nominal capacity. It is recommended to charge the stored battery every 6 months.

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