Method for quickly charging negative electrode without lithium precipitation

The invention discloses a method for quickly charging a negative electrode without lithium precipitation, which comprises the following steps of: heating a battery in a constant-current charging process of the lithium battery, and simultaneously applying vibration operation to the battery. Wherein t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: KANG DANMIAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention discloses a method for quickly charging a negative electrode without lithium precipitation, which comprises the following steps of: heating a battery in a constant-current charging process of the lithium battery, and simultaneously applying vibration operation to the battery. Wherein the temperature of the battery is controlled to be 30-55 DEG C in the heating treatment; and the fixed frequency of the vibration is 100 to 1000 Hz. According to the method, liquid phase flow can be enhanced, concentration polarization can be reduced, and the lithium diffusion coefficient can be improved, so that inhibition of lithium dendrite growth is realized, long-time application of the negative electrode in the service cycle is realized, the loss is relatively low, and long-term inhibition of lithium dendrite growth is realized. 本发明公开了一种无析锂快充负极的方法,包括:在锂电池恒流充电过程中,对电池进行加热处理,同时对电池施加振动操作。其中,加热处理控制电池的温度为30-55℃;振动的固定频率为100-1000Hz。本发明的方法,能够增强液相流动,降低浓差极化,提高锂扩散系数,从而实现锂枝晶生长的抑制,实现负极使用周期中的长时应用,并且损耗较小,达到长期抑制锂枝晶生长。