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Battery value chain/Process/Cell manufacturing/Aging (view source)
Revision as of 12:04, 15 June 2021
, 12:04, 15 June 2021Created page with "{{Semantic Element |label=Cell manufacturing/Aging |description===Production process== *Aging represents the final step in cell production and is used for quality assurance..."
{{Semantic Element
|label=Cell manufacturing/Aging
|description===Production process==
*Aging represents the final step in cell production and is used for quality assurance.
*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.
*A distinction is made between high temperature (HT) and normal temperature (NT) aging. The cells usually first undergo HT aging and then NT aging.
*The cells are stored in so-called aging shelves and/or towers.
*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.
*In contrast to formation, the pouch cells are no longer pressurised in this process step.
*The duration of the aging process depends strongly on the respective cell manufacturer and the cell chemistry used.
==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==
*There are different procedures for the sequence and duration of HT and NT aging depending on the cell manufacturer and cell 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
|relations={{Semantic Link
|property=Has predecessor
|value=Battery value chain/Process/Cell manufacturing/Degassing
}}
}}
|label=Cell manufacturing/Aging
|description===Production process==
*Aging represents the final step in cell production and is used for quality assurance.
*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.
*A distinction is made between high temperature (HT) and normal temperature (NT) aging. The cells usually first undergo HT aging and then NT aging.
*The cells are stored in so-called aging shelves and/or towers.
*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.
*In contrast to formation, the pouch cells are no longer pressurised in this process step.
*The duration of the aging process depends strongly on the respective cell manufacturer and the cell chemistry used.
==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==
*There are different procedures for the sequence and duration of HT and NT aging depending on the cell manufacturer and cell 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
|relations={{Semantic Link
|property=Has predecessor
|value=Battery value chain/Process/Cell manufacturing/Degassing
}}
}}
