Cell manufacturing/Aging

From KIproBatt Wiki
< Battery value chain‎ | Process‎ | Cell manufacturingBattery value chain/Process/Cell manufacturing/Aging
VisualWikitext
m (Text replacement - "Has predecessor" to "HasPredecessor")
 
(5 intermediate revisions by the same user not shown)
Line 1: Line 1:
−
{{Semantic Element
+
{{GlossaryEntry}}{{Semantic Element
 
|label=Cell manufacturing/Aging
 
|label=Cell manufacturing/Aging
−
|description===Production process==
+
|description=
 +
====Production process====
  
−
*Aging represents the final step in cell production and is used for quality assurance.
+
*Final step in cell production
−
*During aging, cell characteristics and cell performance are monitored by regularly measuring the open circuit voltage (OCV) of the cell over a period of up to three weeks.
+
*Process aims at for quality assurance
−
*A distinction is made between high temperature (HT) and normal temperature (NT) aging. The cells usually first undergo HT aging and then NT aging.
+
*Cell characteristics performance are monitored over a period of up to three weeks: Regular measurment of open circuit voltage (OCV)
−
*The cells are stored in so-called aging shelves and/or towers.
+
*Aging differentiation: High temperature (HT) and normal temperature (NT) aging; usual againg sequence: first, HT aging and, then, NT aging
−
*No significant change in the cell properties over the entire period of time means that the cell is fully functional and can be delivered to the customer.
+
*Storage in so-called aging shelves and/or towers
−
*In contrast to formation, the pouch cells are no longer pressurised in this process step.
+
*Quality assurance: No significant change in the cell properties over the entire period of time  
−
*The duration of the aging process depends strongly on the respective cell manufacturer and the cell chemistry used.
+
*Aging duration depends strongly on cell manufacturer and used chemistry  
  
−
==Process parameters & requirements==
+
====Process parameters & requirements====
  
 
*State of charge of the cell at the beginning of aging: 80 % - 100 % SOC
 
*State of charge of the cell at the beginning of aging: 80 % - 100 % SOC
Line 17: Line 18:
 
*Normal temperature approx. 22°C, high temperature approx. 30°C - 50°C
 
*Normal temperature approx. 22°C, high temperature approx. 30°C - 50°C
  
−
==Technology alternatives==
+
====Technology alternatives====
  
−
*There are different procedures for the sequence and duration of HT and NT aging depending on the cell manufacturer and cell chemistry.
+
*Different procedures for sequence and duration of HT and NT aging (depending on cell manufacturer chemistry).
  
−
==Quality influences==
+
====Quality influences====
  
 
*Orientation of cells
 
*Orientation of cells
Line 27: Line 28:
 
*Ambient temperature
 
*Ambient temperature
  
−
==Quality features==
+
====Quality features====
  
 
*Capacity
 
*Capacity
Line 33: Line 34:
 
*Self-discharge rate
 
*Self-discharge rate
  
−
==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=HasPredecessor
 
|value=Battery value chain/Process/Cell manufacturing/Degassing
 
|value=Battery value chain/Process/Cell manufacturing/Degassing
 
}}{{Semantic Link
 
}}{{Semantic Link
−
|property=Has successor
+
|property=HasSuccessor
 
|value=Battery value chain/Process/Cell manufacturing/EOL Testing
 
|value=Battery value chain/Process/Cell manufacturing/EOL Testing
 
}}
 
}}
 
}}
 
}}

Latest revision as of 04:17, 4 September 2022


Description

Production process

  • Final step in cell production
  • Process aims at for quality assurance
  • Cell characteristics performance are monitored over a period of up to three weeks: Regular measurment of open circuit voltage (OCV)
  • Aging differentiation: High temperature (HT) and normal temperature (NT) aging; usual againg sequence: first, HT aging and, then, NT aging
  • Storage in so-called aging shelves and/or towers
  • Quality assurance: No significant change in the cell properties over the entire period of time
  • Aging duration depends strongly on cell manufacturer and used chemistry

Process parameters & requirements

  • State of charge of the cell at the beginning of aging: 80 % - 100 % SOC
  • Aging time: up to 3 weeks
  • Normal temperature approx. 22°C, high temperature approx. 30°C - 50°C

Technology alternatives

  • Different procedures for sequence and duration of HT and NT aging (depending on cell manufacturer chemistry).

Quality influences

  • Orientation of cells
  • Packing density of the cell good carriers
  • Ambient temperature

Quality features

  • Capacity
  • Internal resistance
  • Self-discharge rate

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/Aging&oldid=13169"