Cell manufacturing/Stacking

From KIproBatt Wiki
< Battery value chain‎ | Process‎ | Cell manufacturingBattery value chain/Process/Cell manufacturing/Stacking
VisualWikitext
(updated from Stacking)
Tag: 2017 source edit
m (Text replacement - "Has predecessor" to "HasPredecessor")
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
−
{{Semantic Element
+
{{GlossaryEntry}}{{Semantic Element
 
|label=Cell manufacturing/Stacking
 
|label=Cell manufacturing/Stacking
 
|description=
 
|description=
Line 12: Line 12:
  
 
===Process parameters & requirements===
 
===Process parameters & requirements===
 +
<gallery>
 +
File:Z-Falter Fraunhofer ISC.jpg|Z-Folder @ Fraunhofer ISC
 +
File:Z-Falter Fraunhofer ISC Progress.jpg|Z-Folder during stacking
 +
File:Z-Falter Fraunhofer ISC Result.jpg|Resulting electrode stack
 +
</gallery>
  
 
*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
Line 37: Line 42:
  
 
|relations={{Semantic Link
 
|relations={{Semantic Link
−
|property=Has predecessor
+
|property=HasPredecessor
 
|value=Battery value chain/Process/Cell manufacturing/Vacuum Drying
 
|value=Battery value chain/Process/Cell manufacturing/Vacuum Drying
 
}}{{Semantic Link
 
}}{{Semantic Link
−
|property=Has successor
+
|property=HasSuccessor
 
|value=Battery value chain/Process/Cell manufacturing/Packaging
 
|value=Battery value chain/Process/Cell manufacturing/Packaging
 
}}
 
}}
 
}}
 
}}

Latest revision as of 04:17, 4 September 2022


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

Incoming

Semantic Statements

Add statement


External Identifiers

IRI:





Retrieved from "https://kiprobatt.de/w/index.php?title=Battery_value_chain/Process/Cell_manufacturing/Stacking&oldid=13172"