リチウム電池パックを充電するプロセス全体

リチウムイオン電池の充電プロセスは、トリクル充電（低電圧プリチャージ）、定電流充電、定電圧充電、充電終了のXNUMX段階に分けられます。

Stage 1: Trickle ChargeTrickle charge is used to pre-charge a fully discharged battery cell first. Trickle charge is used when the Li-ion battery pack voltage is below about 3V. The trickle charge current is one-tenth of the constant current charge current, i.e. 0.1c.

Stage 2: Constant-current charging When the lithium-ion battery voltage rises above the trickle charge threshold, the charging current is increased for constant-current charging. The constant current charging current is between 0.2C and 1.0C. The lithium-ion battery voltage rises gradually with the constant-current charging process, which is generally set at 3.0-4.2V for a single battery.

Stage 3: Constant voltage charging When the Li-ion battery pack voltage rises to 4.2V, the constant current charging ends and the constant voltage charging stage begins. Current according to the degree of saturation of the cell, as the charging process continues charging current slowly decreases from the maximum value, when reduced to 0.01C, the charging is considered to be terminated

ステージ4：充電終了充電終了には、最小充電電流判定を使用する方法とタイマーを使用する方法の0.02つの一般的な方法があります。 最小電流方式は、定電圧充電段階からの充電電流を監視し、充電電流が0.07C〜XNUMXCの範囲に減少すると充電を終了します。 XNUMX番目の方法は、定電圧充電フェーズの開始から充電プロセスの時間を計り、XNUMX時間の連続充電後に充電プロセスを終了します。

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