Cell manufacturing/Stacking
From KIproBatt Wiki
< Battery value chain | Process | Cell manufacturingBattery value chain/Process/Cell manufacturing/Stacking
Simon Stier (talk | contribs) (updated from Stacking) Tag: 2017 source edit |
|||
| Line 1: | Line 1: | ||
{{Semantic Element | {{Semantic Element | ||
|label=Cell manufacturing/Stacking | |label=Cell manufacturing/Stacking | ||
| − | |description===Production process== | + | |description= |
| + | ===Production process=== | ||
| − | * | + | *Separated electrode sheets are stacked in a repeating cycle of anode, separator, cathode, separator, etc. |
| − | * | + | *Classic variant of stacking is the so-called Z-folding |
| − | + | *Anode and cathode sheets are inserted alternately from the left and right into the z-shaped folded separator; separator is used as endless tape and cut off after the stacking process is completed | |
| − | * | + | *Finalized cell stack is fixed with adhesive tape |
| − | * | + | *Sheets are transported and positioned by vacuum grippers |
| − | + | *Depending on cell specification, the cell stack consists of a specific number of individual layers | |
| − | * | ||
| − | *Depending on | ||
| − | ==Process parameters & requirements== | + | ===Process parameters & requirements=== |
*Z-folding: Individual anode and cathode sheets are placed laterally in the Z-folded separator web | *Z-folding: Individual anode and cathode sheets are placed laterally in the Z-folded separator web | ||
| − | |||
*Stacking accuracy: ± 200 μm - 300 μm | *Stacking accuracy: ± 200 μm - 300 μm | ||
| − | |||
| − | ==Technology alternatives== | + | ===Technology alternatives=== |
*Lamination process: The individual electrode and separator sheets are laminated onto each other in a continuous process and are then usually pressed together by a heat press. | *Lamination process: The individual electrode and separator sheets are laminated onto each other in a continuous process and are then usually pressed together by a heat press. | ||
*Pocket Stacking: The cathode sheets are placed in a separator pocket. Afterwards cathode and anode sheets are stacked alternately. | *Pocket Stacking: The cathode sheets are placed in a separator pocket. Afterwards cathode and anode sheets are stacked alternately. | ||
| − | ==Quality influences== | + | ===Quality influences=== |
| + | *Exact positioning of individual sheets as central quality criterion. | ||
*Position detection and alignment of sheets of different sizes with a vacuum gripper | *Position detection and alignment of sheets of different sizes with a vacuum gripper | ||
*Mechanical pre-tensioning of the separator | *Mechanical pre-tensioning of the separator | ||
| − | ==Quality features== | + | ===Quality features=== |
*Positioning accuracy of the anode and cathode sheets | *Positioning accuracy of the anode and cathode sheets | ||
| Line 35: | Line 33: | ||
*Avoidance of electrostatic charging | *Avoidance of electrostatic charging | ||
| − | ==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 | 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 | |relations={{Semantic Link | ||
|property=Has predecessor | |property=Has predecessor | ||
Revision as of 16:52, 19 November 2021
Description
Production process
- Separated electrode sheets are stacked in a repeating cycle of anode, separator, cathode, separator, etc.
- Classic variant of stacking is the so-called Z-folding
- Anode and cathode sheets are inserted alternately from the left and right into the z-shaped folded separator; separator is used as endless tape and cut off after the stacking process is completed
- Finalized cell stack is fixed with adhesive tape
- Sheets are transported and positioned by vacuum grippers
- Depending on cell specification, the cell stack consists of a specific number of individual layers
Process parameters & requirements
- Z-folding: Individual anode and cathode sheets are placed laterally in the Z-folded separator web
- Stacking accuracy: ± 200 μm - 300 μm
Technology alternatives
- Lamination process: The individual electrode and separator sheets are laminated onto each other in a continuous process and are then usually pressed together by a heat press.
- Pocket Stacking: The cathode sheets are placed in a separator pocket. Afterwards cathode and anode sheets are stacked alternately.
Quality influences
- Exact positioning of individual sheets as central quality criterion.
- Position detection and alignment of sheets of different sizes with a vacuum gripper
- Mechanical pre-tensioning of the separator
Quality features
- Positioning accuracy of the anode and cathode sheets
- Damage-free electrode surfaces and edges
- Avoidance of electrostatic charging
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
Semantic Links
Add or edit outgoing links
To edit incoming links, go to the subjects site.
Outgoing
| Subject | Property | Object |
|---|---|---|
| Cell manufacturing/Stacking | HasPredecessor | Cell manufacturing/Vacuum Drying |
| Cell manufacturing/Stacking | HasSuccessor | Cell manufacturing/Packaging |
Incoming
Semantic Statements
External Identifiers
IRI:
