Wondering how to properly charge a lithium battery? Let Winshinepower give you a little bit of popular science~
After the implementation of the new national standard for electric vehicles, lithium battery packs for electric vehicles are becoming more and more common in the market. Lithium battery packs are lighter and perform better. They can be charged and discharged normally from -20°C to 55°C, and their lifespan is equal to that of lead-acid batteries for electric vehicles Considering the overall cost-effectiveness, lithium batteries are now the first choice for electric vehicles, but many people do not understand the correct charging method of lithium batteries for electric vehicles. Let me introduce to you below.
Lithium battery charging method① First, insert the output plug of the lithium battery charger into the battery charging socket, then insert the charger plug into the socket, and observe the indicator light to determine the charging.
② Generally, after the indicator light of the charger turns green, it will be charged for about 1-2 hours, and the charging of the lithium battery will be stopped.
Of course, it is necessary to know why. The correct use of lithium batteries is inseparable from the understanding of the charging and discharging process of lithium batteries.
Lithium battery charging theoryIn 1972, American scientist J.A.Mas proposed that the battery has the best charging curve during the charging process: I=I0e-αt, where; I0 is the initial charging current of the battery; α is the charging acceptance rate; t is the charging time. The values of I0 and α are related to the battery type, structure and age.
The current research on battery charging methods is mainly based on the optimal charging curve. If the charging current exceeds this optimal charging curve, it will not only fail to improve the charging rate, but also increase the gas evolution of the battery; if it is less than this optimal charging curve, although it will not cause damage to the battery, it will prolong the charging time and reduce the charging efficiency.
Lithium battery
Lithium battery charging precautions① Do not charge in hot weather, and do not charge the lithium battery immediately after driving.
The high temperature will make the battery capacity of the lithium battery decline. Try to choose a cool and ventilated environment for charging. A too hot environment is not conducive to the charging state, and will also damage the lithium battery and reduce the life of the charger. Although it is winter now, it is still necessary to keep away from open flames and high-temperature heat sources.
② The lithium battery should be charged in time if it indicates that the power of the lithium battery is too low during driving.
After the lithium battery is discharged, the vulcanization process begins. Timely charging can remove minor vulcanization. If the charging is not timely, these sulfide crystals will accumulate and gradually form coarse crystals.
③ Charge it with a suitable lithium battery charger.
If the charger is lost or damaged, please buy it from the corresponding dealer. Do not use lead-acid chargers or other forms of chargers to charge lithium batteries.
④ Do not overcharge the lithium battery.
Lithium batteries have no memory effect, and each charge is about 5-8 hours. Users should pay attention to estimating the time when charging.
⑤ Try to charge the lithium battery pack as you use it.
Avoid recharging the lithium battery after each Undervoltage, which can prolong the battery life and keep the battery in a shallow cycle state.
⑥ If it is not used for a long time, the connection between the lithium battery and the vehicle should be disconnected.
When the lithium battery electric vehicle is not used for a long time, the connection between the battery and the whole vehicle should be disconnected to avoid the battery self-discharge.
⑦ Lithium batteries are not allowed to be stored empty.
If the electric vehicle is not used for a short time, please charge the lithium battery to more than 50% for storage, and the battery must be replenished every month.
More information is continuously updated, see you in the next issue.
For more information, please follow the link below:
https://www.winshinepower.com/