Unlike lead-acid batteries, how should lithium batteries be maintained?

by:CTECHi     2021-09-26
With the vigorous promotion of new energy and the continuous advancement of electric vehicle battery technology, some high-performance batteries 'lithium batteries' have gradually entered life. As the power source of electric vehicles, lithium batteries are deeply loved by consumers due to their lightness, durability and high cycle times. After all, there are differences between lithium batteries and lead-acid batteries, and their use methods are also different. How to use lithium batteries correctly affects the hearts of consumers. Today, the editor will give you some precautions for popular science lithium batteries: 1 Timeliness of charging: (1) The battery is generally in a charged half-charged state when it leaves the factory. When riding for the first time, it is best to fully charge the battery, because self-discharge will reduce the charge of the lithium battery, and the active material in it can be activated. (2) Do not run out of battery power every time you ride, because over-discharge can cause great damage to lithium batteries. Long-term over-discharge will reduce the battery life by 3 times. At the very least, when the battery is too low while riding an electric bike, stop riding decisively and charge the lithium battery. Picture 2 Timeliness of charging: (1) Lithium batteries are effective at any time, even if there is 50% of the charge before charging, it does not matter. This is because it is different from Ni-MH batteries, which have a memory effect. There is no lithium battery. (2) Do not overcharge. Stop charging when the charging completion indicator is on. 3 Compensation for self-discharge charging: If the battery is not used for a long time, it must be charged once within 60 to 90 days, because the best storage state of lithium batteries is half-electric storage (that is, between 40% and 60% of the nominal capacity of the battery) Storage), we know that the highest voltage of a lithium battery is 4.2V. Therefore, the storage voltage is preferably between 3.8V and 3.9V. At this time, the capacity is basically half. Picture 4 Original charging equipment: try to use the original lithium battery charger to charge (do not use lead-acid battery charger directly), use a formal matching lithium battery charger to charge the battery, do not use inferior or other types of battery chargers Lithium battery charging. Excessive charger current will break down the lithium battery protection system and cause a short circuit, thereby causing safety accidents for the lithium battery. The charger voltage is too low, which makes the charging efficiency low and consumes too much time. Picture 5 Temperature environment during storage: The temperature environment of polymer batteries is wide, ranging from -20°C to 45°C, but in fact the most suitable temperature is room temperature. From the perspective of 'agingFor countries like China with large temperature differences, the northern region must develop low-temperature-resistant lithium batteries, while the southern region must develop high-temperature lithium batteries. Picture 6 Strictly follow the precautions in the manual: When the lithium battery is not in use, it should be placed in a cool and ventilated place to avoid high temperature and humidity. Try to avoid riding in rainy weather. Even if you are riding, take care to prevent the lithium battery from entering water. Electric vehicles are tools that add convenience to our lives. Don’t let unprofessional knowledge and unprofessional charging methods bring us unnecessary trouble. I hope that the majority of electric vehicle users can use lithium batteries correctly and reasonably, and treat them scientifically. battery charging.
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