PEM gas diffusion

producing

the

electrode

waterproofing Patent

and

Retaining material MCFC electrolyte

for

it.

number:

WO

00113243

Applicant: This

Metal screen flow-field Applicant: Lab,

Los Alamos

outflow

National

fuel cell includes metal mesh defining

rectangular

flow-field

which uniformly reactant over membrane

a a

Ir provides

distribution

membrane

over

without

bipolar

plates.

Patent

number:

a

Applicant:

Lockheed

the

Patent

component, results

in

and lower

US 6037073

UCAR

Technology,

fixed composite

and

graphite

ceramic

fibre

mechanically

supporting

This

zirconium

oxide gold

an

a mixture

and cerium on

effective

a sheet of

particles,

which

is

so that

the

grooves form a flow-field plate. Patent number: US 6037074

Applicant:

nonplates

United

Compressing Applicant:

in

An

apparatus

described

permeability

mechanism is advantageous. Patent number: US 6040072

to

the

membrane

This guarantees constant optimal humidification by

and the

formed

the

product

water

all over

eliminating

additional

humidification

systems.

Patent

WO

number:

Toshiba,

prevent

Japan

d rying

of

Applicant:

a solid

membrane, exchange

a is

structure

is described,

ion-exchange or flow

non-conductive

cold

under

extend

operating

Patent

number:

for

use in

fuel cells employing membranes pressure, lifetime. US 6037075

to

used

This

invention

medium

can be easily

and swiftly

carried

out, while offering

a fuel cell

a simplified

structure.

number:

US 6040073

Loughborough of Technology,

the

Th e parent

describes

fuel

ceil

arrangements

suitable

for

mass

production using

WO

001148

19

item

International

Fuel Cells,

graphitised

formed felt which

composite

by embedding

in a matrix

of carbon resin

is then cured,

graphitised

to

plate capable inhibiting mixing

carbon

form

and

is filler,

carbonised

and

a separator

and flexibility

standard of

of design

parts,

with

voltage

and

capacities,

long

lifetime

compacrness

for

output. Patent number:

any given

open current

of substantially of hydrogen and

Applicant: patent

manifolding

US 6040077

Operation

The

with excess fuel Forschungszentrum

Germany invention

relates

to a method

a fuel cell, by feeding

an excess of fuel. The aim is an almost

isothermal

stack operating

temperature.

Patent

WO

number:

0011642314

separator

M-C

Power,

describes

Next

month News

and

Breaking news Related industries

Features Technical articles on projects and developments around the world

power

Research Trends

US 6040075

One-piece This

number:

In Brief UK

fibre

solvent,

to

Business activities Technical developments Industry trends

University

number:

resistance

in

of a cooling

Patent

are

the cooling

the

thermosetting

that creep in order

are

regions,

how melting

unreacted gas via a water-retaining porous material.

excellent

to achieve

Fuel cell arrangements

the reacted gas passed through stack into contact with

catalysts

for use in fuel cells and in particular catalysts

Japan

cells

can freeze.

Patent

USA

poisoning.

it with

Applicant:

by bringing

USA plate

clamping

reacted

gas temperature

3M,

for operating

effected and the unreacted gas temperature is made lower than the

Applicant:

Technologies,

the size

describes

with

US 6040076

nanostructured

Jiilich,

together,

the

Honda, fuel

water

cell

freeze damage

especially

fuel cell

of

Avoiding When

00/14816

Here

Applicant:

of components

minimising

weight

are

a fuel cell

especially

perpendicular

Applicant:

Patent

need to be clamped

and

the

Catalyst for MEA

CO

merhod

Applicant: I? Koschany (Germany) In this gas diffusion structure, a gas

This

high-pressure

and

for assembling

where

fit-up

USA

which

is produced

between

described sensors,

a stack

Lynntech,

PEM gas diffusion

Composite

USA An electrically

used in a high-

US 6040070

it

cell

to eliminare

exhibiting

choice

Electrically conductive

It offers

fuel cell.

number:

oxide,

00113791

gradient

for

of

form.

WO

Patent

individual

a perovskite

as a substrate

when

temperature

electrodes

of

components. Patent number:

layer growth.

life

and reduced

of operation,

more stable and

suitable

longer

captured

number:

is chemically

stability

problems

Germany describes

provides ease endurance,

components,

Forschungszentrum

parent

to the design of the

separator plate, which of assembly, long-term number

with surface

single-crystal

the

of

due principally

US 6039823

Perovskite layer Jiilich,

comprising

polymer electrolytic temperature/humidity

and needle-shaped deformed

cell

support

To

resin-containing

flexible

oxide

Applicant:

Carbon

relates to a combination flexible graphite sheet

to

fuel

Solid polymer

USA

The patent of a thin

number:

Applicant:

American

a catalyst

membrane,

Flexible graphite composite for flow-field plate Applicant:

internal

Labs, S. Africa

this

the loss of electrolyte

stack, or an assembly

geometry

number:

Patent

so more

Anglo

Research

Patent

fuel cell in which the bipolar plate and diffuser are combined into a

less costly construction ohmic losses.

Applicant:

catalytically

Energy Research, USA The patent describes an improved

simple

which

the

Gold catalyst

with

Martin

monolithic

increases

include

US 6037072

plate/diffuser

whose

of the electrolyte,

resistance and gas crossover. Patent number: US 6037076

In

machined

Bipolar

and/or

a fuel cell stack.

which

simpler and more effective reactant and cooling flow distribution configuration, with uniform reactant

the

pattern

distributes the the catalysed

assembly.

oxygen within

the lifetime

by suppressing

normally

This PEM square-weave

Japan

extends

of an MCFC

USA

single

Toshiba,

invention

for

plate

The latest research results published in the key journals

USA fully

internal

of the fuel and oxidant

gases to and from the individual cells of an assembled stack in a manner,

Patents Recently published US and WO patents

Fwl Cells Bulletin No. 24