Electric contact layer material

Sandwich-type solid polymer electrolyte fuel cell Applicants: Tanaka Kikinzoku Kogyo KK, Japan; Stonehart Associates Inc, USA; M. Watanabe (Japan) The patent describes a sandwich-type solid polymer cathode an ion particles, containing

electrolyte fuel cell comprising a current collector, a cathode containing exchange resin and cathode catalyst an ion exchange membrane, an ion exchange resin

an anode and anode

catalyst particles, and an anode current collector. The ion exchange resin in the cathode and/or anode contains catalyst metals to promote the reaction of hydrogen and oxygen gases to produce water. The catalyst metals are insulated from the current collectors by the ion exchange resin, which has no electrical conductivity. Patent number: US 5800938 Publication date: 1 September Inventor:

1998

ApplicantDnventor:

layer material

Applicant: Forschungszentrum Jiilich GmbH, Germany Individual cells in a stack of solid oxide fuel cells are electrically joined to each other by intercalated interconnectors. Normally, irregularities on the surfaces of the interconnector and the electrode impede a reliable electrical connection. These irregularities are smoothed out by an electrical contact layer arranged between the electrode and the interconnector. This layer is made of a composite substance with at least two phases. The first phase consists of glass or glass ceramics, while the second exhibits electrical conductivity. Patent number: WO 98/40921 Publication date: 17 September 1998 Inventors:

U. Diekmann,

Gas turbine/fuel Applicant: Company,

G. Blass

California

monoxide.

in a pulsed

monoxide catalyst resulting

from

the anode

catalyst

Patent

Publication

USA

Applicant:

30-60

wt%

the fuel cell is used to drive the turbine, which in turn drives the generator and the compressor. Thus both the fuel cell and the generator produce electricity. The compressor is used to compress air for use in the fuel cell. Part of the

Inventors:

Publication Inventor:

5811201

date: 22 September M.J.

is used to preheat

1998

Skowronski

of and

(Sc,O,).

a high ionic

power

independent

the

losses

adsorption

at

1998

Germany fuel cell

Aisin

Se&

having

is well preserved

A solid-polymer-electrolyte a synthetic

chain

and a hydrocarbon-based

main

chain

copolymer vinyl

resin, is formed

made

monomer

from

The

Hybrid MCFC with unique sealing Applicant: M-C Power Corporation, USA The patent covers a hybrid internal/external manifolded fuel cell stack. A plate separates each

involves

a sulfonic

H. Schichl

possesses

high

resistance,

input

is led

and/or

distributes

devices

to

the

fuel

designs

are described,

cathode

gases run

which

gas, on from

output

the gas

outside.

in which

through

the

the

by external

distribute

cells

gas

the gas

to or away

cathode

current

oxidation number:

Different the fuel

and

fuel cells

in a

of fuel gas residues. WO

98144582

date: 8 October I? Kraus, S. Rolf

Methanol

1998

concentration

Applicant:

California

Pasadena,

CA, USA

patent

sensor

Institute

describes

of Technology,

a sensor

sensing

under

that is capable

of

of the concentration of a in analysis, aqueous

environments

containing

the substance. concentration

A key application is as a methanol sensor device coupled to a fuel

control

high concentrations

system

for

of

use in a liquid

fuel cell.

number:

WO

98145694

Publication

date: 15 October

Inventors:

S.R.

Here

KK, Japan is formed

includes

a main

as a film,

1998

Narayanan,

W.

Chun,

T.I.

from

side The

a

and can be produced

Gesellschaft

Technik

mbH,

a polymer-electrolyte

oxidising

agent

different

combustion

fiir

Germany

fuel cell using

(under

is cooled

directly

air as

low overpressure) gases, by

in

feeding

fire1 gas passages. The water

and

particular liquid

into the air passages and possibly introduced

water also the into the

gas passages also serves to wet the solid polymer vinyl

electrolyte.

chain

Patent

membrane

and flexibility

PEM fuel cells

Magnet-Motor

hydrogen,

The

a fluorocarbon-based

hydrocarbon-based strength

which

Magnetmotorische

side chain.

group.

to the

the fuel cells. The cathode

hand,

Applicant:

and a hydrocarbon-based

monomer.

electric

which

fuel gas is conveyed

Cooling/wetting

membrane

from

and

Valda

membrane

Kabushiki

inputs

gas can

The

inside

other

Patent

of scandium

Solid-polymer-electrolyte Applicant:

current

cathode

a

Each

fuel gas and cathode

device

direct-feed

(ZrO,)

time.

F. Richter,

distribution

metering

containing

oxide

which

and

with

in a stack.

of the fuel cells via an internal

substance

Patent number: WO 98143308 Publication date: 1 October 1998 H. Landes,

input

fast and reliable

amount

of operating

or leave.

The

results in the cathode

conductivity,

enter

Publication Inventors:

a layer

a small

has anode by which

anode

Turbinen-

Germany

relates to a fuel cell assembly

cell

outputs,

on

zirconium

This

fuel

und

GmbH,

of fuel cells arranged

adsorbed

Miinchen,

comprising

patent

number

Patent

relates to a high-temperature

a cathode

The

catalytic

W. Unkauf

AG,

Friedrichshafen

anode

composite

Siemens

Motoren-

cross-, counteror direct current manner. Additional measures are taken for the integrated

98142038

High-temperature cathode

Union

in a stack

MTU

carbon

monoxide

Friedrich,

Gas distribution Applicant:

the

way,

be effectively

by carbon

are reduced.

WO

K.A.

electrolyte

waste heat from the turbine the air used in the fuel cell.

In this

catalyst

can therefore

applied to construct PEM fuel cells. Patent number: US 58 177 18 Publication date: 6 October 1998 Inventors: S. Nau, M. Gondo

such that

date: 24 September

Inventors:

oxide

vary

has been

carbon

number:

to

manner,

is oxidised.

A system for generating electricity is described which combines a fuel cell, a heating stage and an integral power generator. The power generator includes a compressor, an electricity generator and a turbine. Hot exhaust gas from

Patentnumber:US

which

an anode

is reduced

It is possible

potential

with Edison

activity

an

cost. The solid-polymer-

membrane

gas distribution (Technische

Germany a fuel cell comprising

unit with

catalytic

The patent

cell system

Southern

electrode-electrolyte whose

manufacturing

cathode

U. Stimming

Universitat Miinchen), The invention concerns

reduced electrolyte

the

Fuel cell with pulsed anode potential

M. Watanabe

Electric contact

of the fuel cell units, to form an anode chamber between the separator plate and the anode, and a cathode chamber between the opposite face of the separator plate and the cathode of an adjacent fuel cell unit. The anode chamber is supplied with a fuel gas which exits through internal manifolds, while the cathode chamber is supplied with an oxidant gas supply which exits through external manifolds. The electrolytes and separator plates both have a number of aligned perforations, which form a manifold wet seal. Each of the separator plates, in addition to the wet seal structure to provide sealing between the separator plates and the electrolyte in operation, also comprises a dry peripheral seal structure at a distance from the peripheral wet seal structure. Patent number: US 5811202 Publication date: 22 September 1998 Inventor: VJ. Petraglia

but low at a

number:

Publication Inventors:

WO

98145889

date: 15 October A.

Koschany,

1998 C.

Lucas,

T.

Schwesinger

Fuel Ceils Bulletin No. 3