We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAnjali Ansel
Modified about 1 year ago
© Fraunhofer THERMISCH-ELEKTRISCHE BATTERIE- MODELLIERUNG W. Beckert, Christian Freytag, T. Frölich, M. Wolter
© Fraunhofer 2 Fraunhofer Institut f. Keramische Technolog. u. Systeme Dresden Arbeitsgruppe Modellierung und Simulation: Multiphysics-Feldsimulation (FEM, CFD); Reaktive Strömung; homogenisierter Ansatz für heterogene Mesostrukturen; (Systemsimulation) Thermisches Management von Energiesystemen,... (SOFC-Stacks + Komponenten, thermoelektrische Generatoren, Li-Ion-Batterien,...) H igh -T emperature -F uel -C ell -SystemsT hermo -E lectric -G enerator D iesel -P articulate -F ilter
© Fraunhofer 3 Our Model Approach for Batteries
© Fraunhofer 4 Homogenisation model for winding body PDE: anode side charge balance/ potential PDE: cathode side charge balance/ potential Constitutive equ.: electric characteristics winding PDE: thermal balance current collector porous cathode porous anode isolator separator/ electrolyte current collector cell laminate anode side current distributor phase cathode side current distributor phase "el.-chem." active phase: transverse charge transfer simplified 3-phase homogenised continuum approach intrins. potential polar. resistance DOF: U ano U cath T composite homogen. composite volume element combine into transverse (electrolyte) current density
© Fraunhofer 5 Model for local electrical characteristics Constitutive equation for el.-chem. active phase: [C. M. Shepherd "Theoretical design of primary and secondary cells. Part 3: battery discharge equation" NRL Report 5908; May 1963 Empirical Approach: Shepherd's Model  intrinsic electrochemical potential cell polarisation resistivity
© Fraunhofer 6 Introduction into SHEPHERD-Model* Discharge: Charge: * ref.: 
© Fraunhofer 7 Discharge example from SHEPHERD-Paper (NiCd-cell): Introduction into SHEPHERD-Model
© Fraunhofer 8 Extensions and adaptions to original SHEPHERD-Model: Introduction into SHEPHERD-Model only valid for isothermal and galvanostatic conditions for OCV* for linear range * ref.: 
© Fraunhofer 9 Thermal-dependence of SHEPHERD-parameters: LFP C-Cell Introduction into SHEPHERD-Model
© Fraunhofer 10 transient battery model [3, 4, 5]: extended SHEPHERD-Modell (i≠const) transient term + Introduction into SHEPHERD-Model non-galvanostatic part galvanostatic part(i=const) open circuit voltage (equilibrium)
© Fraunhofer 11 Models and Results (Batterie Cell Level)
© Fraunhofer 12 Model Geometry: Example: cylindrical cell with contact tabs ( LiFePo 4, ANR 26650) separated current collector tabs, embedded between windings nonhomogeneous contacting with current concentration toward cont. tabs helical current flow + current collection 3D-model approach
© Fraunhofer 13 Hybrid 2D-3D Model with Thermal Electric Coupling Concept: Combined 2D electric 3D thermal model for winding body electric problem: 2D frame U ano (l,y), U cath (l,y), j elek (l,y) Q diss (l,y) thermal problem: 3D frame T(x,y,z) Map 3D 2D Temperature Map 2D 3D Dissipation Heat l y T(x,y,z) j elek (l,y) T Q diss COMSOL: allows integrated mapping + simultaneous cosimulation (unrolled electric film composite) (thermal composite) information transfer rev uc elec diss d dddeffth Q h j T U T Q QT 0, )( jjσλ T kk TUU 00
© Fraunhofer 14 t= 6 s Transient analysis with current pulse high dynamic load + small area contacts hot spot formation (LiFePo4, 26650, R i = 10 m ) pattern of hot spots, induced by contacting structure dynamic analysis current pulse: duration 6 s I max = 95 A = 40 C reasonable magnitude for practical operation temperature Hybrid-Model Results: 3D-thermal model branch
© Fraunhofer 15 Completion: 3D-Model with Housing Geometry/ Mesh generation winding domain: Comsol-generated add housing + contact structure: CAD-Import connecting meshs by interface elements
© Fraunhofer 16 3-D Model with Housing: Results Temperature [°C] 41.9°C 21.9°C 41.9°C
© Fraunhofer 17 Models and Results (System Level)
© Fraunhofer 18 Implementation in SimulationX 3.5 SimulationX 3.5 Modelica 3.2
© Fraunhofer 19 Implementation in SimulationX transient term 4
© Fraunhofer 20 Application on External Data Sources of used data: experimental data for LFP C-Cell: discharge 1C, 5C, 10C including temperature data data from COMSOL build-in battery-model : pulse discharge: 1C, 5C no temperature data included SHEPHERD-parameters via external data fit (Excel)
© Fraunhofer 21 Application on External Data Terminal voltage from a LFP C-Cell 1C2,1A 5C10,5A 10C21A
© Fraunhofer 22 Application on External Data Temperature profile during discharge of a LFP C-Cell
© Fraunhofer 23 Application on External Data 1C - pulse discharge for COMSOL-Model: peak17,5A duty cycle300s periode2000s
© Fraunhofer 24 Application on External Data 5C - pulse discharge for COMSOL-Model: peak87,5A duty cycle100s periode2000s
© Fraunhofer 25 Summary hybrid 2D-electric + 3D-thermal composite approach with geometrical details thermo-electric coupling homogenised 3 phase model for winding composite simple empirical model for electrical characteristics result: contact structure acts as source for thermal hot-spots in dynamic loads approach has potential for use in multi-cell models good, robust and simple model for description of terminal voltage resolution for isothermal and galvanostatic restriction of original model sufficiently accurate match between experiment and model
© Fraunhofer 26 Outlook "Virtual Battery Thermal Lab"-Tool: analyse/ understand internal thermal processes „benchmark" for simpler models tool for cell design optimisation IKTS activity: internal cell temperature sensor assist design process optimise sensor positioning analyse effects from interference of sensor-cell implementation of charge behaviour data fit in SimulationX/Modelica coupled thermal-electric model Prototype example: [IKTS] curved LTCC substrate thick-film resistor electrolyte tolerant resolution: +/- 0.6 K
© Fraunhofer 27 Wish List to Modelica simple data import to Modelica simple data fit function in Modelica (bidirectional) interface to FEM …
© Fraunhofer 28 References C. M. Shepherd: Theoretical design of primary and secondary cells part III - battery discharge equation NRL Report 5908 Washington, D.C O. Tremblay, L.-A. Dessaint, A. I. Dekkiche: A Generic Battery Model for the Dynamic Simulation of Hybrid Electric Vehicles Vehicle Power and Propulsion Conference A. Jossen: Fundamentals of battery dynamics Journal of Power Sources 154 (2006) 2, S. 530–38. N. Sekushin: Equivalent circuit of Warburg impedance Russian Journal of Electrochemistry 45 (2009), S. 828–32. F. M. González-Longatt: Circuit Based Battery Models: A Review 2do congreso iberoamericano de estudiantes de ingenieria electrica,  COMSOL Multiphysics User’s Guide: Rechargeable Lithium-Ion Battery Version 3.5a, 2008.
© Fraunhofer 29 Fraunhofer IKTS:Georg Fauser Adrian Goldberg Diana Leiva Pinzon IAV GmbH Chemnitz: Carolus Grünig Mirko Taubenreuther Daniel Tittel Acknowledgments This work was kindly funded by: Europäische Fond für regionale Entwicklung (EFRE) and the Freistaat Sachsen
FUEL CELL STACK MODEL BASED ON MULTIPLIPLY SHARED SPACE METHOD Steven B. Beale* and Sergei V. Zhubrin** * National Research Council, Ottawa, Canada **
Institute for Chemical Process and Environmental Technology Numerical Studies of the Thermo-electrochemical Performance in Solid-oxide Fuel Cells Steven.
PowerPoint ® Presentation Photovoltaic Systems Inverters AC Power Inverters Power Conditioning Units Inverter Features and Specifications Arizona Solar.
How Fuel Cells Work Fuel Cells ( ): Making power more efficiently and with less pollution.
X – Ray methods of Analysis : X – Absorption spectroscopy. X – Ray Fluorescence Spectroscopy. X – Ray Diffractometry.
Institute for Chemical Process and Environmental Technology TOWARDS A VIRTUAL REALITY PROTOTYPE FOR FUEL CELLS Steven Beale Ron Jerome Steven Beale Ron.
SCIDAC Center for Extended MHD Modeling EXTENDED MHD MODELING: BACKGROUND, STATUS AND VISION Dalton D. Schnack Center for Energy and Space Science Science.
Application of the Root-Locus Method to the Design and Sensitivity Analysis of Closed-Loop Thermoacoustic Engines C Mark Johnson.
1 Mr. Dusit Thongjun Managing Director CGL Engineering Co., Ltd. CGL ENGINEERING CO., LTD. Mitigation of AC Induced Voltage On Buried Metallic Pipelines.
1 Ι © Dassault Systèmes Ι Confidential Information Ι SolidWorks Flow Simulation Instructor Guide.
Institut für Technische Thermodynamik Dr. W. Schnurnberger Modeling Direct-Methanol-Fuel Cells: taking a look behind experimental current-voltage characteristics.
EXTENDED MHD SIMULATIONS: VISION AND STATUS D. D. Schnack and the NIMROD and M3D Teams Center for Extended Magnetohydrodynamic Modeling PSACI/SciDAC.
DRAFT – Work In Progress - NOT FOR PUBLICATION 13 July 2005 Modeling and Simulation ITWG Jürgen Lorenz – Fraunhofer IISB – chairperson M&S ITWG ITWG Members.
Coupling Heterogeneous Models with Non-matching Meshes Modeling for Matching Meshes with Existing Staggered Methods and Silent Boundaries Mike Ross Center.
ITRS Winter Public Conference, December3, Makuhari Messe, Japan 1 ITRS Summer Conference, July 12, 2012, San Francisco, CA, USA Modeling and Simulation.
Integration of MBSE and Virtual Engineering for Detailed Design Presented by: Akshay Kande Advisor: Dr. Steven Corns Missouri University of Science & Technology.
Nottingham July 2008Control of AC-DC, HF DC-DC and Automotive DC-DC Converters Power Electronics Research Laboratories, Dept of Electrical and Electronic.
William L Masterton Cecile N. Hurley Edward J. Neth University of Connecticut Chapter 18 Electrochemistry.
Battery Model for Embedded Systems Venkat Rao, EE Department, IIT Delhi. Gaurav Singhal, CSE Department, IIT Delhi. Anshul Kumar, CSE Department, IIT Delhi.
Lecture 6 Solid-State Diodes and Diode Circuits 1.
DESIGN FOR SEMICONDUCTOR RELIABILITY George Denes, Dipl.Eng. Senior Semiconductor Reliability Consultant.
The moving charges (the microscopic particles) from the electric supply constitute an electric current Conventionally: The direction of the electric.
Class 10 Translational motion transducers. Introduction Translational displacement transducers are instruments that measure the motion of a body in.
By Valentin KulikovRegensburg Automated System for Combinatorial Synthesis and High-throughput Characterization of Polymeric Sensor Materials.
COOLING TOWER. 8. COOLING TOWER Purpose of a cooling tower is to provide cool water at a certain temperature. The water used in a cooling tower is cooled.
Field Effect Transistors. Introduction Two main types of FET: - JFET –Junction field effects transistor -MOSFET – Metal oxide semiconductor field effect.
Fundamentals of Weather Modification The purpose of these lectures can be enounced in a simple sentence: to help pilots to become good cloud physics observers.
H. Chan; Mohawk College1 R. F. Systems EE731. H. Chan; Mohawk College2 Main Topics Transmission Line Characteristics Waveguides and Microwave Devices.
Introduction to CAD/CAM/CAE CAD Lab.. Introduction CAD(Computer Aided Design) CAM(Computer Aided Manufacturing) CAE(Computer Aided Engineering) Memory.
TRAINING FOR OLADE`S MEMBER COUNTRIES COURSE CAPEV By César Angeles-Camacho Instituto de Ingenieria, UNAM DESIGN AND IMPLEMENTATION.
© 2016 SlidePlayer.com Inc. All rights reserved.