18650 lithium battery charging method introduction

作者：Iflowpower – Kaasaskantava elektrijaama tarnija

18650 Battery charging method is a system problem: capacity, current and its interrelation, charging mode application, charger selection, these will affect the application of 18650 battery charging method, let us first start from charger. According to the structural characteristics of 18650 lithium batteries and the charging system specified in the national standard, the current charger of 1/5 of the battery should be selected (for small capacity 18650 battery pack, we can choose 0.5c charging current), on the market The 18650 battery has a capacity between 1800 to 2600mAh.

The selected lithium battery charger should be between 350 ~ 500mAh, the correct choice of charger can avoid the damage of the battery to the battery, and can also be surely The shortest charging time is shorter, from this sense, select the charger is the first important in the 18650 battery charging method. On the selected charger, the 18650 battery charging method is divided into two steps: conformal flow and constant voltage. The first step is that the constant current is charged to the voltage rising to 4.

2V. The second step is to transfer constant voltage charging after the voltage reaches the charger. When the constant voltage is charged, the voltage is constant, the current is gradually reduced, and the current is reduced.

Stop charging when it is 0.02c. For 18650 batteries without protector, there is a need to improve the 18650 battery charging method to facilitate the formation of long-lasting mechanisms to improve cell performance.

This contributes to the battery to form a layer of protective film at the negative electrode to prevent "passivation" of the battery, and for the battery with the protective plate, it is not necessary. Because the lithium battery does not have a memory effect, it can be charged at any time at any time, but it will still be charged in the case where the electricity is still very sufficient. 18650 Battery charging method is therefore: Do not urgently charge when the battery is just 20 ~ 30%, because this four-five shallow discharge is equivalent to a full discharge, the experiment shows that the last result of shallow discharge is : The total amount of power that can be provided with frequently discharged 18650 battery charging method can provide with a total power supply of the normal (85% to 90%) discharge type 18650 battery charging method, with average nearly 1/4, judged normal supplement The method of electricity time is also very simple, as long as the power of the 18650 battery reaches that, the electrical appliance will issue an indication signal.

Through the introduction of 18650 charging method, we know the 18650 battery charger's selection criteria. Hever long, the destruction is never come.