overview of battery modeling south korea...

CD-adapco Overview of Battery Modeling

South Korea 2012

A unique integrated solution

The battery performance models and the thermal coupling

Some examples

Getting down to the microscopic level

AGENDA

Joint Commitment to develop an design/analysis method

Development Context

Battery Cell Battery modules/packs In Situ

Increasing Length Scale

Flow/Thermal/

Electrochemistry = +

Microstructure

Battery Simulation

Module

•Model suitable for all analysis requirements •Offer a choice to the user

•Including a detailed Electrochemistry model •Cross functional workflow

The User Advantage

Battery

Performance/Geometric

Models

The Core Technology

2654

3

3

2

210

DODaDODaaY

DODaDODaDODaaU

UVVYJ np

(1) J. Newman and W. Tiedemann, J.

Electrochem. Soc. Vol. 140, No. 7, July 1993 pp.

1961-1968.

(2) H. Gu, J. Electrochem. Soc., Vol. 130 No. 7

1983 pp. 1459-1464.

(3) U. S. Kim, Ch.B. Shin, C.-S. Kim, J. Power

Src. 189 (2009) 841-846

(1) T. Fuller, M. Doyle, J. Newman, J.

Electrochem. Soc. 141 (1994) 1-10

(2) Battery Design LLC, “BDS

Documentation”

M. Verbrugge and R. Conell, J.

Electrochem. Soc. 149 (2002) A45-A53

Cell Design

DISTRIBUTED

HEV/PHEV Module/Pack

RCR

EV Module/Pack

NTG

Solves transport, kinetics, equations

Quick response for frequent charge/ discharge like HEV/PHEV energy storage

Simple, easy to create model , and best for simple discharging thermal analysis

Copyright © 2012 by CD-adapco. The following material constitutes a portion of the

CD-adapco training course entitled “Battery Simulation Module” and should not be

altered, edited or distributed without the consent of the author.

The coupled solution

Distinction to Battery Design Studio

– STAR-CCM+ BSM imports battery cell designs from BDS

– Cell design is specified upfront in BDS

– Procedures to apply to the cell can also be defined in BDS

6

Battery Cell Solution

(Simple circuit / Physics

based)

Flow/Thermal Solution

(Convection,

Conduction, Radiation)

Local Heat Sources

Local

Temperatures

At Each Iteration

Electrical Solution Thermal Solution

STAR-CCM+ Battery Simulation Module

User Workflow Overview

Create Battery

model

Test performance with HHPC

test

Understand

limiting factors

of celll

Concentration of Lithium

• Use Create Cell performance model in module & Pack analysis – Understand 3D effects on cell efficiency and cooling system, also visualise internal gradients

Explore design solutions and re-test

Create module

using cell

design

Add modules

together and

surrounding

CAD to create

complete pack

Understand

electrochemical

and thermal

performance of

design

Coupled

Flow/thermal &

electrochemical

solution

• Single Cell study conducted in Battery Design Studio

– Capacity, sizing studies for a given load

Compute heating effect of applied voltage to components

Ohmic Heating

Potential

Temperature

Within a flow, thermal and electrochemical

solution

Core Technology

Demo Problem – 2S2P Module

10

Demo Problem – 2S2P Module

11

Industrial Example

12

• To Match reported thermal behaviour

– 26 Ahr Lithium Ion cell, data taken from literature

– Model created, some assumptions manufacturing

– assumptions made

Simulation Workflow #4

Validation Paper available

from CD-adapco

The only software solution included in a German Auto

consortium to validate against test work on a large scale

hybrid battery pack. 900K euros investment www.cd-adapco.com/press_room/2010/27-10-ascs.html

Cylindrical & Prismatic Wound Cells

14

Distributed 3D Model

DIST3D • Nonlinear Transients

15

(3C - 10 sec discharge, 20 sec rest) x3

RCR3D • Nonlinear Transients

Work Completed with University of Freiburg

Courtesy of “Hutzenlaub, Thiele, Zengerle, Ziegler; Three

dimensional reconstruction of a LiCoO2 Li-Ion Battery

Cathode; Electrochemical and Solid-State Letters, 2012”

Computational Mesh – LiCo02




Current

Collector

Separator

Li Foil

LiCoO2

Section plane of the electrode – Electric Current

Density




Li-ion/Salt concentration

SEI Over Potential

Courtesy of “Hutzenlaub, Thiele, Zengerle, Ziegler;

Three dimensional reconstruction of a LiCoO2 Li-Ion

Battery Cathode; Electrochemical and Solid-State

Letters, 2012”

Electric Current Density on Solid Phase

Courtesy of “Hutzenlaub, Thiele, Zengerle, Ziegler;

Three dimensional reconstruction of a LiCoO2 Li-Ion

Battery Cathode; Electrochemical and Solid-State

Letters, 2012”

Particle Model (1D)

Unit Cell Physics Model (1D)

Plate Cell Model (3D)

Pack Model(3D)

• CAD

• Fluid dynamics

• Thermal

• Electrical

The Length Scale Consideration

STAR-CCM+ 3D-MSE

BDS STAR-CCM+ BSM

Thank you very much!

overview of battery modeling south korea...

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