What is a Pouch Cell Sorting Machine?

In the field of batteries—especially lithium-ion batteries—there is a trend toward higher capacities that has recently been driving production of pouch cells. Pouch cell sorting machine may be in order to obtain and grade this demand. In this white paper we’ll review what a pouch cell sorting machine is, how it works and a little bit about pouch cells themselves.
Studies and Technology: Pouch Cell Sorting Machine
Pouch cells: Jared Vanit, “Li-ion pouch cell technology drives battery materials manufacturing”, CleanTechnica.
The pouch cell: The biggest cell types safety and disposal relationships, new application the use: “The whole battery is made of soft materials and packaged in thin plastic films (measured in micrometers), including aluminum foils for a lighter cell. This wrapping technology reuses a form of energy (chemical) and thermodynamically is not substantial. The size of the cell can be adapted for different uses.”
What is a pouch cell sorting machineTypically the machine passes through a number of stages, first of feeding the cells into the system and passing them on to sorting based on chosen parameters, and finally grouping the cells according to their performance levels. Some machines have their own automated ‘testing and grading’ functionality that provide immediate feedback on the production process.
How Does a Pouch Cell Sorting Machine Work?
Pouch cell sorting machines use a combination of sensors, automated feeders and sorting mechanisms to do the job. Here’s a rough guide to how the system comes together:
– Cell feeding: For starters, the pouch cells are fed into the machine using an automatic feeder or conveyor system. This prepares the cells for sorting, their alignment being an important consideration.
– Testing and grading: Next, the cells are tested to see important parameters like voltage, internal resistance and capacity, etc. Based on the readings from this, the machine categorises the cells into groups. Some machines go a step further, with safety factors like thermal stability also tested.
– Sorting: Once the cells have been tested and graded, the pouch cell sorting machine uses a sorting mechanism to separate out the cells, into bins or trays, etc. This may be manual or automated, depending on the machine exterior.
– Feedback and Optimisation: Many modern pouch cell sorting machines have their own feedback systems, which allow for real time monitoring and constant adjustment of production, allowing manufacturers to monitor and maintain quality.Why is pouch cell sorting important?
Not just testing but actual sorting of pouch cells is a vitally important process. Why is it important you may wonder? Well, here are some possible reasons:
Quality Control: by sorting the cells into grades of good and bad in terms of performance parameters, manufacturers can supply premium cells for premium products, such as electronic vehicles and energy storage systems. The last thing anyone wants is poor quality cell used in products. It is a recipe for disaster – and that is preventing anybody selling batteries from serious mistakes, legal actions and low quality production and manufacturing yields.
Cost Efficiency: by sorting and grading pouch cells, manufacturers will reduce wastage and make the optimum use of high quality cells and premium products. It’s good economics, cuts corners and improves the profit on a cell.
Customization: with global customers requiring various battery types and grades for dispatcher application use, grades of pouch cells can be defined for distinct performance criteria, for instance in high specification EV battery packs, regular and premium, or in ordinary phone battery products, and so on.
What features are increasingly found in pouch cell sorting machines?
Potential buyers have to think quite carefully about what features are really required. Some suppliers offer machines that will not only accommodate and fix of the parameters above in the machine but also accommodate –
High-Speed Sorting – floor and ceiling specifications for the numbers of cells that can be sorted per hour/day. Other ‘speeds and feeds’ presuming, of course, that the machine is actually capable of seating and fixing in position correctly the cell.
Accuracy – the machine will also ascertain accurate parameters and present performance grading of each cell present and sorted through the machine.
Automated Systems – machine ‘feeder’ and ‘arm’ and perhaps actual testing and sorting systems, as fully automated one could want them. As with most machines, an automated sorting and testing machine is an advantage.
Data ‘logging’ and/or ‘feedback’ monitoring – now being found on many machines, and a capabilities that manufacturers of pouch cell may well want.
Adaptability – to ‘take’ many grades of pouch cell, different sized cells and different ‘things’ shall we say! Perhaps taking into account where across the globe products are being sent.