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Fault analysis of common rechargeable lithium battery protection plate

Published by admin 2024-04-07

Rechargeable Lithium battery is one of the commonly used battery types in life. For rechargeable lithium battery, we are naturally very familiar with it. In order to enhance the understanding of rechargeable lithium battery, this paper will introduce the lithium battery protection plate, the main content is to explain the lithium battery protection plate fault judgment problem.


rechargeable rechargeable Lithium battery abnormal reasons summary, including rechargeable lithium battery capacity, lithium battery internal resistance, lithium battery voltage, size of the thick, circuit break, etc., battery capital for a simple summary and share with you.

 

 

First, low battery capacity
Causes: a. Less material; B. There is a big difference in the amount of material on both sides of the pole plate; C. Pole plate fracture; D. Less electrolyte; E. Low conductivity of electrolyte; F. The positive electrode and the negative electrode are not well matched; G. Low porosity of diaphragm; H. Adhesive aging → accessory off; I. The coil core is too thick (not dried or the electrolyte has not penetrated)j. The volume is not fully charged; K. Negative and positive materials have small specific capacity.

 

 

Two, the battery internal resistance is high
Causes: a. Defective welding of negative plate and pole ear; B. Defective welding of the positive electrode plate to the pole ear; C. Virtual welding of positive lug and cap; D. Negative lug and shell virtual welding; E. High internal resistance between rivet and press plate; F. No conductive agent is added to the positive electrode; G. The electrolyte has no lithium salt; H. Short circuit occurred in the battery; I. Diaphragm paper has low porosity

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