energy storage system ev smart battery …...li-ion li-ion li-x optimization battery optimization...

Electrical Vehicle Batteries Made in Europe

30.11.2010

Joint EC / EPoSS / ERTRAC Expert Workshop 2010 1

1 CR/PJ-EV2 | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,

distribution, as well as in the event of applications for industrial property rights.

Energy Storage System EVSmart Battery Management System

BOSCHCorporate Research

2

Energy Storage System EV

CR/PJ-LIB | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,


Lithium Ion Technology at Bosch

BoschPower Tools

Bosch

Corporate Research

Bosch/Samsung

� New High Energy Lithium Ion Cells

� Safe Lithium Ion cells

� Energy storage and battery

systems for HEV/EV vehicles

� Power Tools powered by Lithium

Ion cells

Bosch eBikes

� Closed System (Battery, Charger,

Drive Unit) for electric bikes


30.11.2010


3


CR/PJ-LiB | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,


Lithium Ion Technology at the Bosch Research Department

Materialresearch

Lithium Ion Cell manufacturing

� Module Design

� Battery Management Algorithms

� High Energy Cells: LiS & Li-Air

� Safe Lithium Ion Cells

� New Materials for High Energy

Lithium Ion cells

System development

4


CR/PJ-EV2 | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,


Development Roadmap E-Mobility

HEV PHEV EV11. Generation

SOP 2018

EV22. Generation

SOP 2012SOP 2010

System EV GS-EH

Organization SB Limotive

Development Roadmap E-Mobility

Bosch

Research


30.11.2010


5




Innovation for higher performance (specific energy & power)

Prismatic cell design for highest safety & lifetime

Focus on high quality plus cost-efficient & innovative system solutions

World-wide spare part support by Bosch Aftermarket

Recycling w/ support of partners

6




Cooling SystemBMS Software

Cells Modules BMS Pack

� SB LiMotive offers flexible business models

Products

� In connection with hardware also development services, e. g.


30.11.2010


7




Vehicle

System

Sub-System

Component

Future (E)- Mobility Demand

Requirements Engineering EV

8

Energy Consumption and Weight Reduction EV




8

0

10

20

302010:

22 kWh/100km

Target 2020: 12 kWh/100km

Mech. Brakes (0,5 kWh)

Aerodynamic (7 kWh)

Roll-Resistance (4 kWh)

Drive Train Losses (5 kWh)

Accessories (1,5 kWh) &

Thermo (3,5 kWh)

Aerodynamic (5-6 kWh)

Roll-Resistance (2-3 kWh)

Drive Train Losses (2 kWh)

Accessories (1 kWh) &

Thermo (1,5 kWh)

400 kg weight reduction, Frontal

Area und cw reduced

Consumption kWh/100km real cycle (CADC)


30.11.2010


9




real vehicle range:

200 km

260 kg

200 km

180 kg

Li-Ion

Li-Ion

Li-x

Optimization Battery Optimization Vehicle and System

200 km

500 kg

250 Wh/kg

22 kWh/100 km150 Wh/kg 12 kWh/100km

consumption

2010

2015

2010 2020

+

44 kWh

improved module with intelligent BMS

35 kWh

350 Wh/kg

2020

44 kWh

200 km

100 kg

Li-x

44 kWh

cell levelusable

energy

200 km

200 kg

Li-Ion

24 kWh

2015

modular design w/ optimized vehicle integration

10


CR/PJ-LiB ARC-137 CR/ARC-Liedtke | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation,

reproduction, editing, distribution, as well as in the event of applications for industrial property rights.

> 64 %

> 18 %

> 13 %

> 3 %

> 2 %

Market acceptance EV *)

*) from magazine Auto-Motor Sport , ** Total vehicle weight incl. battery = 1000 kg ) , Energy consumption : 16 kWh/100km

600 W

h/k

g

220

Wh/k

g

300

Wh/k

gTarget WindowFull EV

LiS

& L

iAir

cells

160 W

h/kg

130 Wh/kg

**)

Mitsubishi MiEVUrban electric vehicle

Tesla RoadsterEV Sport Car

BMW Mini EUrban electric vehicle

GM VoltPlug In

HV-N

CM

Li-I

on c

ell

Phosphate b

ased Li-I

on cell

260

Wh/

kg

LiFePO4

Li(Fe,Mn)PO4

NCM

HV-NCM

LiS

Li-Air

130 Wh/kg

150 Wh/kg

160 Wh/kg

220 – 260 Wh/kg

Energy density (1C-rate)

Energy density (0.1 C-rate)

300 Wh/kg ***)

600 Wh/kg ***)

***) values vary in dependence of

selected cell design

Estimation for cell level

Research / development status

Conventio

nal NCM

Future Cell Technology for EV


30.11.2010


11


Corporate Research | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction,

editing, distribution, as well as in the event of applications for industrial property rights.

Battery Management System (BMS)

BMS FUNCTIONSSingle Cell Sensing

Battery Diagnosis

Main Contactor Control

Temperature Prediction and Management

Isolation Failure Detection

Current and Voltage

Limitation

Battery Cell Balancing

Power and restenergy prediction

Identification of Safety Events

is part of the battery system intended to ensure safe and optimal battery operation, as well as provides information for the other components of the BEV.

12


Corporate Research | 11/30/2010 | © Robert Bosch GmbH 2009. All rights reserved, also regarding any disposal, exploitation, reproduction,

editing, distribution, as well as in the event of applications for industrial property rights.

Energy storage system - requirements pyramid

Co

sts

Weight

Safe

ty

Efficiency

Lo

ng

lif

eti

me

Lo

w p

ac

k c

os

ts

Low internal resistance

Light battery

components

High specific energy

Active balancing

Cell a

nd

desig

n s

pecif

ic s

afe

ty

BM

S s

afe

ty f

un

cti

on

s

BMS


30.11.2010


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2,00

2,10

2,20

2,30

2,40

2,50

2,60

2,70

2,80

2,90

3,00

3,10

3,20

3,30

3,40

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56

t [min]

U0

U1

U2

U3

U4

U5

U6

U7

U8

U9

2,00

2,10

2,20

2,30

2,40

2,50

2,60

2,70

2,80

2,90

3,00

3,10

3,20

3,30

3,40

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56

t [min]

U0

U1

U2

U3

U4

U5

U6

U7

U8

U9

2,00

2,10

2,20

2,30

2,40

2,50

2,60

2,70

2,80

2,90

3,00

3,10

3,20

3,30

3,40

3,50

3,60

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56

t [min]

U0

U1

U2

U3

U4

U5

U6

U7

U8

U9

2,00

2,10

2,20

2,30

2,40

2,50

2,60

2,70

2,80

2,90

3,00

3,10

3,20

3,30

3,40

3,50

3,60

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56

t [min]

U0

U1

U2

U3

U4

U5

U6

U7

U8

U9

46 min

54 min + 17 %

Active Balancing

No Balancing

Range test with differently aged cells.V

olts

Vo

lts

14




Optimized Solution future EV

Volume

Function

Cost

Efficiency

Weight

EV2

Overall Optimum

Volume

Function

Cost

Efficiency

Weight

EV2

Overall Optimum

„The optimum of each subsystem and component is not necessarily the

overall optimum of the entire system“


30.11.2010


15 CR/PJ-EV2 | 16.09.2010 | © Robert Bosch GmbH 2010. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,


Thank you for your attention !

BOSCHCorporate Research

energy storage system ev smart battery …...li-ion li-ion li-x optimization battery optimization...

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