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SOFC

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Property ASC-10B ASC-10C ASC-12A

Anode support composition NiO/YSZ NiO/YSZ NiO/YSZAnode support thickness 500 m 200 m 200 mAnode functional composition NiO/YSZ NiO/YSZ NiO/YSZAnode functional thickness 12 m 12 m 7-10 mElectrolyte composition YSZ YSZ YSZElectrolyte thickness 3 m 3 m 1-3 mBarrrier composition GDC GDC GDCBarrier thickness 2 m 2 m 0.2 mCathode composition LSC LSC LSCCathode thickness 20-30 m 20-30 m 20-30 mTotal thickness 550 m 250 m 250 mThickness tolerance +/- 25 m +/- 15 m +/- 15 mSuggested operating temp. 600-700C 600-700C 600-700CStandard size (cell) 10x10cm 10x10cm 10x10cmStandard size (cathode on cell) 9x9cm 9x9cm 9x9cmDifferent sizes available + + +Different shapes available + + +Half-cells available * + + +

* For universities and R&D companies we have a range of half-cell available

for you to evaluate your own active layers on a trusted and well-tested half-

product.

SOFC single cellsIn order to bring you the best solution in SOFC single cell market, we have set high standards, which our products must meet.

As a proof of our work, we have received ISO certificates according to quality control (IS0 9001:2008) and environmental

management standard (ISO 14001:2004).

Properties of cell generationsIn the following table main properties of our three cell generations are brought. Please note that ASC-12A line will be avail-able starting from autumn 2013.

Single cell standardelectrochemical performanceAs a part of our quality control system, we execute regular cell tests at VTT

testing facilities in Finland who is well-known, objective and trusted service

provider. In the following typical plots for performance and durability are given.

Synthetic reformate in single cell tests had the composition of 15% CH4, 26%

CO2, 29% H2 and 30% H2O.

Elcogen ASC-10B SOFC cell100x100mm cell, active area 79cm2Measured at 650C

Elcogen ASC-10B SOFC cellActive area 79cm2, I = 23.4A; i = 300 mA/cm2Anode feed [mlpm]: H

2819

Cathode feed [mlpm]: air 1942

Elcogen ASC-10B SOFC cell100x100mm cell, active area 79cm2

i = 400 mA/cm2

Voltage

(V)

Dry hydrogen

Synthetic methane reformat

1,2

0,8

0,4

0,0

Current density (A/cm)

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0

V

oltage(mV) 850

800

750

700

650

900

950

1000

0 200 400 600 800 1000 1200 1400 1 600

Temperature (C)

Voltage (mV) Time (h)

0 0,05

-0,02

-0,04

-0,06

-0,08

-0,00

0,10 0,15 0,20 0,25 0,30 0,35 0,40

Reformate

Zimag

(Ohm

cm

)

Zreal(Ohm cm)600 C650 C700 C

ASC-10B

ASC-10C

ASC-12A

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SOFC stackElcogen is manufacturing solid oxide fuel cell stacks and has started first deliveries to customers. Current version of the

stack available for deliveries is rated for 500 W. It is based on 30 Elcogen ASC-10B cells, metallic interconnects and glass

based sealants. Stack has excellent electrical performance between 600 700 C with ASR measured to be 0.5 Ohm/cm 2

(at 650C, Uf = 46 %). Reduced operating temperature enables the use of low cost materials with good long term stability.

Reduced operating temperature also enables major cost reduction in BoP components such as for air recuperator and heat

insulation. Elcogen is introducing stack for 1 kW systems during 2013. Stack will be based on similar material system as

the current 500 W stack.

Elcogen 500W stack iV-characteristics* Test conditions: U

f= 46%,

VN

anode = 0.28 Nl/min/cell, Uo= 22%,

Elcogen stack power curve.* Test conditions: U

f= 46%,

VNanode = 0.28 Nl/min/cell, Uo = 22%,

Tcathode,in

= 600C, Tanode,in

= 660C.

Longterm stability test of Elcogen stack.* Test conditions: i = 0.3A/cm2, [H

2in N

2] = 50%,

Uf= 60%, U

o= 26%, T = 700C

Averagestackvoltage[V]

0 0.1 0.2 0.3 0.4

Current density (A/cm)

0.6

0.4

0.2

0.0

0.8

1

100

200

300

400

500

Stack current [A]

Stackpower(W)

0 5 10 15 20

0 100

1,00

1,50

0,50

200 300 400 500 600 700 800

Time / h

Avera

gevoltage(V)

Fullthermocycle

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Production facilitiesOur small-series production facility has been set up in Tallinn, Estonia. We have paste manufacturing laboratory, all neces-

sary tape-cast, screen-print, firing and quality control machinery. Our SOFC single cell technology is designed in a way that

it is easily scalable to larger output quantities. Our cells are produced entirely in-house starting from powders.

CompanyElcogen is a manufacturer anddeveloper of high-performance anode-supported Intermediate Temperature Solid Oxide Fuel

Cells based on proprietary materials and technological solutions. Elcogen was established in 2001 and is located in Tallinn,

Estonia and Espoo, Finland. The company works closely with leading Estonian and Finnish research institutions.

Elcogen OY

Visiting address: Biologinkuja 5,

Espoo, Finland

Post address: P.O. Box 1000,

FI-02044 VTT, Finland

Elcogen AS

Saeveski 10a Tallinn

11214 Estonia

Phone: +372 671 2990

Fax: +372 671 2999

E-mail: info@elcogen.com

www.elcogen.com