Process-Product Interdependencies in Lamination of Electrodes and Separators for Lithium-Ion Batteries

In today’s cell production, the focus lies on maximizing productivity while maintaining product quality. To achieve this, the lamination of electrode and separator is one key process technology, as it bonds the electrode and separator to form mechanically resilient intermediate products. These mecha...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2022-04, Vol.15 (7), p.2670
Main Authors: Leithoff, Ruben, Fröhlich, Arian, Masuch, Steffen, Ventura Silva, Gabriela, Dröder, Klaus
Format: Article
Language:English
Subjects:
Accuracy
Batteries
battery production
Electric vehicles
Electrochemical analysis
Electrochemistry
Electrodes
Feed rate
greyscale analysis
high potential test
Intermediates
Lamination
Lithium
Lithium-ion batteries
Manufacturing
Measurement techniques
Process parameters
Product quality
Productivity
Quality assurance
quality control
Raw materials
Sensors
Separators
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In today’s cell production, the focus lies on maximizing productivity while maintaining product quality. To achieve this, the lamination of electrode and separator is one key process technology, as it bonds the electrode and separator to form mechanically resilient intermediate products. These mechanically resilient intermediates are necessary to enable high throughput processes. Although the lamination process has significant effects on the electrochemical performance of battery cells, it has not been sufficiently researched with regard to its process-product interdependencies. Therefore, this paper addresses the investigation of these interdependencies and proposes three characterization methods (grey scale analysis, high potential tests, electrochemical cycling and C-rate tests). The results of the three methods show that the lamination process with its process parameters (lamination temperature, lamination pressure and material feed rate) has an influence on both the properties of the intermediate product and the cell properties. In conclusion, the knowledge of the process-product interdependencies is essential in order to utilize the advantages of lamination integrated into the process chain and consequently achieve quality-assured cell production.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15072670