Reasons for Burrs on Lithium Battery Poles and Solutions

Reasons for Burrs on Lithium Battery Poles and Solutions

During the cutting and punching process of lithium battery electrodes, burrs are prone to occur. This article briefly explains the causes, hazards, and solutions of burrs.

1、 The influence of burrs on lithium batteries

1). Impact on battery performance: Burrs may cause poor electrode contact, affecting battery charging and discharging efficiency, and reducing battery capacity.

2). Increase safety hazards: Burrs may puncture the battery separator, leading to short circuits and even causing safety accidents such as thermal runaway and fire of the battery.

3). Reduce product quality: Burrs will increase the internal resistance of the battery, reduce the battery's cycle life, and affect product quality.

4). Increase production costs: Burrs may lead to electrode scrap, increasing production costs.

2、 The causes of burrs

1). Tool wear: During long-term use, tool wear can cause the cutting edge to become blunt, resulting in burrs.

2). Equipment malfunction: During the operation of the equipment, such as the transmission system, tool positioning system, etc., malfunctions may cause insufficient contact between the tool and the material, resulting in burrs.

3). Improper operation: Improper use of tools and equipment by operators, such as incorrect installation of tools, excessive feed rate, etc., may also lead to burrs.

4). Material issue: The characteristics of the lithium battery electrode material itself, such as tensile strength, hardness, etc., may also affect the generation of burrs.

3、 Solution measures

1). Regular inspection of tools: Regular inspection and replacement of tools to ensure their sharpness and avoid burrs caused by tool wear.

2). Maintenance of equipment: Regular maintenance and upkeep of equipment to ensure normal operation and reduce burrs caused by equipment failures.

3). Standardized operation: Strengthen employee training, standardize operating procedures, ensure correct tool installation, moderate feed speed, and reduce burrs caused by improper operation.

4). Choose high-quality materials: When purchasing lithium battery electrode materials, choose products with reliable quality and stable performance to reduce burrs caused by material problems.

4、 Notes:

1). Operators should undergo professional training, be familiar with the operation and maintenance methods of the equipment, and ensure standardized operation.

2). When using cutting tools, it is necessary to strictly follow the instructions for using the tools to avoid burrs caused by improper use of the tools.

3). During the operation of the equipment, regular inspections and maintenance should be carried out to ensure normal operation and avoid burrs caused by equipment failures.

4). When purchasing lithium battery electrode materials, it is important to choose products with reliable quality and stable performance to avoid burrs caused by material issues.

5). In the production process, it is necessary to strengthen the inspection and management of product quality, timely detect and handle burrs, and avoid affecting product quality and safe use.

In summary, understanding the causes and hazards of burrs on lithium battery electrodes and taking effective solutions can improve product quality, reduce production costs, and ensure the safe use of lithium batteries.