Ion-conducting fuel cell membrane

hydrogen-rich Patent

start-up

number:

Publication

dzte: 27 July 1999

Inventors:

P. Singh,

Integrated

Power

The patent

describes

distributor

plastically

Systems

a polymer

plates

deformable

foil, and which

electrolyte

made

from

material,

These

distributor

an elastic,

gas or liquid

stamping

with

the

or

gas

liquid

indentations Patent

number:

Publication

and

by

to form

corresponding

Argonne

for partially

oxidising

a high

while maintaining

molecule,

USA

oxidation

catalyst,

material,

CO content

less than

catalyst the

of

is required

oxidise

to generate

as the hydrogen

powder

(CeO,BGdO,zOl.Y)

and

which

could

oxide

like Co,03

be either

of

from

M.

US 5931658

R.A.

1999

Sederquist,

D.F.

Szydlowski,

T.J.

S.l? Bonk

University

powder

a metal like platinum

which

is reduced

carbon

electrodes

carbon

papers,

USA

for fabricating

by infiltrating membranes, or fabrics

carbon

foam

carbon

paper, for example,

precursor

material

readily

and

Precursor

with

ceria

phase

of California,

is described

with

thin,

flat

highly

porous

felts,

metal

material.

The

stays flat and flexible

pyrolysing materials

to

or an

in situ in the

include

sheets.

polyacrylonitrile,

flexibility

compared

improved monolithic

structures.

Patent

number:

US 5932185

Publication

dzte: 3 August

Inventors:

R.W. R.L.

Krumpelt,

with

more

1999 S.T.

Mayer,

J.L.

DMFC with gaseous fuel Forschungszentrum

Germany The patent direct

relates

methanol

vaporised

in

mixture

Jiilich

to a method fuel

the

cell.

cell,

is vapourised

for operating

mixture

is then

The patent

conveyed

fuel cell

number:

Publication Inventors:

WO

GmbH,

to the

cell’s

99138223 B. Hohlein

a solid

electrolyte

high

fuel cell arrangement

in which

several

is

have top discharge

openings

on opposite

the solid electrolyte

element.

Since the after-burn

excess anode

the excess

gas openings extend

are directed

upwards

arrangement,

undesirable

prevented. facilitates

from

The

upwards the

top

of

compression

between

the same compression forces.

These

the

cell

further

structure.

The electrolyte

and cathode

layers are

deposited

on a porous,

gas-permeable

by a thin-film

technique.

is a sintered comprising

body

carrier The

of metal

a highly

porous

carrier ceramic

base layer as

cover layer of anode material.

The base layer pores are open with

respect to one

another, and have an average diameter of >300 pm. The cover layer pore diameters are not substantially

greater

of thermal

expansion

than 1-3 pm. The coefftcient of the carrier

structure

is

the same as that of the solid electrolyte.

Inventors:

E. Batawi,

K. Honegger

Ion-conducting

fuel cell membrane

Dais Corporation,

sulfonated

( 1000°C) each joint

force by side

forces

USA

membrane

which

comprises

statistical The

copolymer

to obtain

number:

of

Znventors:

styrene

less than

WO

and

is obtained

then sulfonating

Publication

and

of styrene

membrane

an acetyl sulfate sulfonation least 30 mol% sulfonate. Patent

for fuel cells is

a hydrogenated

a copolymer

5%

by and

residual

the polymer

with

agent to a level of at

99138896

he:

5 August

B.M.

She&h-Ah,

can

Applicant:

Siemens

Corporation,

1999 G.E.

Wnek

The

be

Westinghouse

Power

USA

patent

assemblies.

the various

plates at the relatively high temperatures since, if there is no rigid soldering joint, is sealed with

film

SOFC connections

of the stack is

arrangement

sealing of the joints

a thin

sides of

and the flames

heating

vertical

Switzerland

fuel cell with

active multilayer

unsaturation,

a

also describes such a DMFC.

date: 29 July 1999 R. Menzer,

using

describes

electrolyte AG,

electrolyte has an electrochemically element which is executed as a planar

butadiene

Jiilich

cells are arranged upright adjacent to one another, connected in series. The air and fuel gas channels

methanol/water

Elements are provided for transferring heat from the fuel cell to the vaporiser. Patent

agent

patent

temperature

a methanol/water

in a vapouriser

heat from the cell. The vapourised chamber.

The

GmbH,

A cooling

and

temperature

butadiene.

Germany Applicant:

This high

described,

Forschungszentrum

1999

Innotec

An ion-conducting

Morrison

High temperature

R. Kumar,

Applicant:

Operating

US 5932366

hydrogenating

S. Ahmed,

air is

to pre-heat

in fuel cells,

1999

R. Doshi

Supply

the heat-exchanger,

Sulzer

Applicant:

Pekala,

a

to the open

Patent number: US 5932368 Publication akte: 3 August 1999

These thin films are ideal for use electrodes

adjacent

SOFC with thin-film

essentially

/formaldehyde, formaldehyde

and energy

to arrange

well as a fine-pored a

during

thin

resorcinol phenol/

brittle

Kaschmitter,

form

it possible

immediately

Applicant:

structure

infiltrated

and The

H. Ringel

material

is then cured to form

This

brittle

also makes

date: 3 August

structure

an appropriate

pressure.

highly

plates.

number:

Inventor:

date: 3 August

etc., or mixtures.

a high

doped

a second

date: 27 July

Inventors:

the furnace. Patent number: Publication

Patent

within

at room

electrolyte

through

Publication

as high power

reactor to cobalt metal. Pdtent number: US 5929286 Publication

to increase the flame temperature

polymethylacrylonitrile, catechollformaldehyde,

dissolving

The catalyst can be prepared area

chambers

that uses air and fuel pre-heat

sealing

the

ends of the air and gas channels. the air.

curing

the

arrangement

values

solid

heat-exchanger

a furnace

The

the carbon

gas. This catalyst is a cermet ceria as the oxide ion conduction

surface

the

gel-saturated carbon paper, which is dried and pyrolysed to form a thin sheet of porous carbon.

hydrocarbon

for long enough

and platinum

material.

fuels such as yield

and then selectively

hydrogen-rich containing

To increase

a

describes

fibres/powders

percentage

“dehydrogenate”

chain, at >4Oo”C

fuel

Laboratory,

5 ~01%. A bifunctional can

reactor.

with

of

sensitive

conducted

Applicant:

hydrocarbon

to produce

about

reaction

Thin carbon foam electrodes

National

relates to a partial

which

is a catalytic

and a catalytic

A method

This patent

hydrogen,

gas into electricity.

extremely

low

the required

fractures

efficiency of the catalytic reaction and reduce the size/number of catalytic reactors, the patent

Corrigan,

27 July 1999

HZ-rich gas from hydrocarbon

gasoline

gas, and a fuel cell

prevents

the product

at relatively

accommodate

of a hydrocarbon

the sealing arrangement.

H. Elias

Applicant:

furnace

USA

has a fuel processing

for steam reforming

Inventors:

US 5928807

hte:

Inventor:

plates.

elevations

ducts

to form

ducts.

respect to elevated

can be produced

corresponding

Fuel Cells,

generally

stack for converting

fuel cell

in the distributor

plates

International

The fuel processing

such as graphite

have integrated

are integrated

Applicant:

temperature, and increased at high temperatures when the sealing material is sufficiently softened to

fuel and steam into a product

Inc, Canada

To seal off the gas or liquid spaces with one another simply and cost-effectively, portions

maintained

apparatus

seal for PEM fuel cell

Ballard

Fuel cell power plant furnace A fuel cell system

R. George

Applicant: with

gas to the fuel cell.

US 5928805

describes The

members member

connected connected

Adjacent

cell bundles

mechanically compliant/rigid

a connection

connection

joining

for fuel cell

includes

compliant

to individual cells, and a rigid to the compliant members. or modules their

connection

are connected

rigid permits

members.

by The

construction

Fuel Cells Bulletin No. 14