Aging mechanisms of lithium-ion batteries Electrotechnical colloquium at the TU Paderborn 09.04.2019 Kai-Philipp Kairies, Dirk Uwe Sauer Battery aging-Battery models-Battery diagnostics-Battery pack design- Electromobility-Stationary energy storage-Energy system analysis. [lo git ec h. co m] Subscribe to DeepL Pro to translate larger documents. Visit www.DeepL.com/pro for more information. Chair of Electrochemical Energy Conversion 1 a n d storage system technology Powerful battery storage is becoming increasingly important ...and thus a good understanding of their aging mechanisms | 2 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology ~25 € 2 years Battery costs Lifetime target > 25.000 € 10 years [te sl a. co m] Powerful battery storage is becoming increasingly important ...and thus a good understanding of their aging mechanisms | 3 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology [ti m e. co m] Without knowledge of the aging processes, the following questions cannot be answered: Warranty? Leasing rates? Probabilities of failure? Operating limits? Safety limits? Operating strategy? Max. charging currents? [T he - P os till on .c o m] | 4 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Structureandoperation oflithium - ion batteries 2 Outline Motivation Battery storage aging Calendrical aging Cyclic aging Aging determination in the field Summary 5 4 3 7 6 1 | 5 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Lithium - ion batteries Large number of material combinations - one operating principle Negative electrodePositive electrode Materials: Graphite Graphite & Silicon Li4Ti5O12 Materials: LiCoO2 LiMn2O 4 LiFePO 4 Li( Ni0.8Co0.15Al0.05 ) O2 Li(NixMnyCo1-x-y)O2 .... Separator Store Unloadin g Microscopic structure of a lithium - ion battery | 6 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology M. Ender. "Microstructural characterization, model development and simulation of porous electrodes for lithium ion cells." PhD thesis. KIT, 2014 Model: reactions shown | 7 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology vEolnl tglaedlaudnegn M. Ender. "Microstructural characterization, model development and simulation of porous electrodes for lithium ion cells." PhD thesis. KIT, 2014 Outline | 8 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology 3 Battery storage aging Motivation Structureandoperation oflithium-ion batteries Calendrical aging Cyclic aging Aging determination in the field Summary 6 5 4 2 1 7 What does "aging" actually mean? | 9 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Aging What does "aging" actually mean? | 10 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Hugh Laurie ~90s Aging What does "aging" actually mean? | 11 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Hugh Laurie ~90s Aging What does "aging" actually mean? | 12 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology H u g h L a u r i e ~ 2 0 1 5 What does "aging" actually mean? | 13 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Hugh Laurie ~90s More beard Aging What does "aging" actually mean? | 14 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology H u g h L a u r i e ~ 2 0 1 5 What does "aging" actually mean? | 15 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Hugh Laurie ~90s More beard Aging Fancier outfit What does "aging" actually mean? | 16 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology H u g h L a u r i e ~ 2 0 1 5 What does "aging" actually mean? | 17 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Aging What does "aging" actually mean? | 18 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Aging What does "aging" actually mean? | 19 09.04.2019Kai - PhilippKairies Chair of Electrochemical Energy Conversion and Storage System Technology Capacity reduction Aging