Battery value chain/Process/Cell manufacturing/Packaging - Revision history

Simon Stier: Text replacement - "Has predecessor" to "HasPredecessor"

2022-09-04T03:18:51Z

Text replacement - "Has predecessor" to "HasPredecessor"

Simon Stier: Text replacement - "Has successor" to "HasSuccessor"

2022-09-04T02:19:50Z

Text replacement - "Has successor" to "HasSuccessor"

Simon Stier: updated from Packaging

2021-11-19T15:58:57Z

updated from Packaging

Christina Leinauer at 10:15, 15 June 2021

2021-06-15T10:15:20Z

Christina Leinauer: Created page with "{{Semantic Element |label=Cell manufacturing/Packaging |description===Production process== *To package the pouch cell, the current collector foils (anode - copper and catho..."

2021-06-15T09:56:49Z

Created page with "{{Semantic Element |label=Cell manufacturing/Packaging |description===Production process== *To package the pouch cell, the current collector foils (anode - copper and catho..."

New page

{{Semantic Element
|label=Cell manufacturing/Packaging
|description===Production process==

*To package the pouch cell, the current collector foils (anode - copper and cathode - aluminium) are first contacted with the cell tabs using an ultrasonic or laser welding process.
*The cell stack is then positioned in the pouch foil. For this purpose, the pouch foil is deep-drawn in an earlier process step.
*The pouch cell is usually sealed gas-tight on three sides in an impulse or contact sealing process.
*One side of the cell (often the bottom of the cell) is not finally sealed in order to be able to fill the cell with electrolyte in the next process step.
*The packaging materials are generally to be regarded as purchased parts.
*The deep drawing of the pouch foil is carried out either directly in the production line or in a separate process.

==Process parameters & requirements==

*Deep drawing: up to 6 mm
*Ultrasonic welding with approx. 15 kHz - 40 kHz
*Packaging material: aluminium composite film (polyamide/aluminium/polypropylene)
*Rule of thumb: "1 mm sealing seam width corresponds to approximately one year of cell lifetime".

==Technology alternatives==

*Book folding process: Instead of two individual pouch foils, a foil with two deep drawn cavities can also be used for insertion into the packaging. After the stack has been inserted, the foil is folded like a book and then sealed.

==Quality influences==

*Reduction of thermal stress during contacting and sealing process
*Seal seam width
*Sealing temperature and pressure

==Quality features==

*Low contact resistance as well as low mechanical and thermal stress during the welding process
*Fatigue strength and tightness of the sealing seams

==Source==
Heimes, H.H.; Kampker, A.; Lienemann, C.; Locke, M.; Offermanns, C.; Michaelis, S.; Rahimzei, E. (2018) ''Lithium-Ion Battery Cell Production Process''; PEM of RWTH Aachen and VDMA, 3rd Edition, ISBN:978-3-947920-03-7
|relations={{Semantic Link
|property=Has predecessor
|value=Battery value chain/Process/Cell manufacturing/Stacking
}}
}}

@@ Line 37: / Line 37: @@
 |value=Battery value chain/Process/Cell manufacturing/Stacking
 }}{{Semantic Link
-|property=Has successor
+|property=HasSuccessor
 |value=Battery value chain/Process/Cell manufacturing/Electrolyte Filling
 }}
 }}

@@ Line 34: / Line 34: @@
 |relations={{Semantic Link
-|property=Has predecessor
+|property=HasPredecessor
 |value=Battery value chain/Process/Cell manufacturing/Stacking
 }}{{Semantic Link

@@ Line 1: / Line 1: @@
-{{Semantic Element
+{{GlossaryEntry}}{{Semantic Element
 |label=Cell manufacturing/Packaging
-|description===Production process==
+|description=
-*To package the pouch cell, the current collector foils (anode - copper and cathode - aluminium) are first contacted with the cell tabs using an ultrasonic or laser welding process.
+*Collector foils are contacted with the cell tabs using an ultrasonic or laser welding process.
-*The cell stack is then positioned in the pouch foil. For this purpose, the pouch foil is deep-drawn in an earlier process step.
+*Cell stack is positioned in pouch foil, which has previously been deep-drawn for this purpose
-*The pouch cell is usually sealed gas-tight on three sides in an impulse or contact sealing process.
+*Pouch cell is sealed gas-tight from three sides in an impulse or contact welding process
-*One side of the cell (often the bottom of the cell) is not finally sealed in order to be able to fill the cell with electrolyte in the next process step.
+*One side of the cell is not finally sealed in order to be able to fill the cell with electrolyte in the next process step
-==Process parameters & requirements==
+===Process parameters & requirements===
 *Deep drawing: up to 6 mm
 *Ultrasonic welding with approx. 15 kHz - 40 kHz
 *Packaging material: aluminium composite film (polyamide/aluminium/polypropylene)
-==Technology alternatives==
+===Technology alternatives===
-*Book folding process: Instead of two individual pouch foils, a foil with two deep drawn cavities can also be used for insertion into the packaging. After the stack has been inserted, the foil is folded like a book and then sealed.
+*Book folding process: Foil with two deep drawn cavities is used for insertion into packaging; foil is folded like a book after the stack has been inserted and, then, sealed
-==Quality influences==
+===Quality influences===
 *Reduction of thermal stress during contacting and sealing process
@@ Line 27: / Line 25: @@
 *Sealing temperature and pressure
-==Quality features==
+===Quality features===
 *Low contact resistance as well as low mechanical and thermal stress during the welding process
 *Fatigue strength and tightness of the sealing seams
-==Source==
+===Source===
 Heimes, H.H.; Kampker, A.; Lienemann, C.; Locke, M.; Offermanns, C.; Michaelis, S.; Rahimzei, E. (2018) ''Lithium-Ion Battery Cell Production Process''; PEM of RWTH Aachen and VDMA, 3rd Edition, ISBN:978-3-947920-03-7
 |relations={{Semantic Link
 |property=Has predecessor