Negative homogenate Lithium batteries, especially lithium-ion batteries, are widely used...
Shell coding
The shell marking code in the production process of lithium battery, also known as shell coding or shell coding, is an important link in the production process of lithium battery. This step involves marking specific coded information on the battery housing to facilitate battery traceability, identification and management. The following is a detailed introduction to the housing marking process:
Purpose of housing marking
Product traceability: Through the unique identification code, the production process, batch and history of the battery can be traced, which helps in quality control and recall of faulty batteries.
Quality control: The housing code can contain key parameters of the battery, such as voltage, capacity, etc., to facilitate quality verification in subsequent detection and use.
Safety management: Specific information that identifies the battery, such as production date, material type, etc., helps in safe use and maintenance.
The contents of the shell code
Manufacturer code: The code representing the battery manufacturer is usually assigned by the relevant agency.
Product type code: Indicates the component form of a battery, such as a battery pack, battery module, or battery cell.
Battery type code: indicates the material used in the battery, such as lithium iron phosphate or ternary lithium batteries.
Specification code: It is defined by the battery manufacturer and recorded in the relevant system.
Traceability information code: used to record the detailed production information of the battery for easy tracking.
Production date code: Records the year and date of production of the battery, which is used to identify the freshness and shelf life of the battery.
Serial number: indicates the production sequence of the battery, which is used to identify the uniqueness of each battery.
Method of housing marking
Inkjet technology: The use of inkjet printer to directly print code on the battery housing, this method is fast and low cost.
Laser marking: The use of lasers to imprint code on the battery housing, this method is suitable for high precision and permanent marking needs.
Printed label: A label containing coded information is affixed to the battery housing. This method is suitable for situations where information needs to be changed frequently.
Quality requirements for housing codes
Clarity: The code must be legible and should remain clear even after prolonged use.
Durability: The code should be resistant to wear, corrosion and environmental changes and remain readable for a long time.
Accuracy: The coded information must be accurate to ensure the accurate transmission of battery information.
CONCLUSION
Through housing coding, lithium battery manufacturers are able to ensure that each battery has a unique identity, which is essential for the full life cycle management of the battery.
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