Manufacturing Quality Management Terminology

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Glossary

Hardware Module

Product Features

Product Parameters

Dry coating thickness tolerance

The uniformity tolerance of the thickness of the coated material on a web after drying is categorized based on the coating process into single-side dry thickness tolerance and double-side dry thickness tolerance, depending on whether it is a single-sided or double-sided coating.
Yield rate

When the raw materials are qualified, the percentage of output products that meet the requirements after testing, in relation to the theoretical total number of products that can be produced from the input materials.
Line yield

The percentage of the number of produced cells in relation to the number of input cells.
Test pass yield

The percentage of the number of qualified tested cells in relation to the total number of produced cells.Note: Qualified tested cell count refers to cells that, after formation, meet the battery parameter requirements for capacity, voltage, internal resistance, and self-discharge.
Pair pass yield

The percentage of paired cells in relation to the total number of qualified cells.Note: Paired cell count refers to cells that meet the requirements for grouping and pairing, indicating the number of cells falling within the specified range for pairing, mainly concerning capacity, internal resistance, and self-discharge. This primarily assesses the consistency of cells and can be expressed using the sigma values for capacity, internal resistance, and self-discharge.
First pass yield of cell

The percentage of qualified cells that have successfully passed all tests from the first process to the last process in the cell production process, in relation to the total number of input cells.
Yield of cell

The percentage of cells that meet the requirements for grouping and pairing in relation to the initial input of cells in the production of cells.
Material utilization

The translation of the provided text is: "Material utilization rate refers to the proportion of the quantity (price) of materials included in qualified products to the total consumption of materials (raw materials), i.e., the percentage of materials that have been effectively utilized out of the actual consumption."
Process material utilization

In each step of the battery manufacturing process, the proportion of the quantity of materials included in the qualified products to the total consumption of raw materials for that step is the material utilization rate. It represents the percentage of materials that have been effectively utilized in that step out of the actual consumption of materials.
Overall material utilization

Throughout the entire battery production process, the material utilization rate refers to the proportion of the quantity of materials included in batteries that ultimately meet the requirements for grouping and pairing, relative to the total consumption of materials (raw materials).
Utilization

The proportion of time that equipment occupies in order to create value within the time it can provide is referred to as the equipment utilization rate.
Efficiency

It refers to the production capacity of equipment per unit of time, typically measured in parts per million (PPM).

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