H2 production without external steam

Patents

Gas-diffusion

Polymer electrolyte Applicant: Hoechst, The

invenrion

relates

chlorosulfonation

of polyarylene

membranes

produce conductivi~

with

for

the

sulfide,

to

high

cell frame

methods

the

frame

for

movement

PEM

fuel

cells

and

gases

the cell, to facilitate

operation

pressure

and high fluid flow rates.

at high

Patent number: US 60997 I6

Preventing

deposition

of carbon

improved

Detecting flooding method

and apparatus

detect

and correct

in a PEM fuel cell, by monitoring

the

threshold,

it

flow channels

arranging

serpentine

This invention

of gas

channel,

flow channels

by

in a mirror-

small

amount

(air)

channel

catalyst

H,

stability

of a frozen fuel

of an oxidant

with

of fuel into the normal on the

cathode

producing

a

produ~ion

This

uses steam

NiO-MgO,

coarsening

from ceria mixed

to stab&se

during

the nickel

high-temperature

with

the

heat.

compact

hydrogen

external

supply

SOFC

Patent number:

Compact

production

apparatus

and operates

without

US 6103411

describes

Applicant: Case Western Reserve University,

system

includes

USA

the oxidation invention

relates

polybenzimiadazole electrolyte

to (PSI)

membrane

operated

at elevated

conductivity

the

casting

solid

useful

in

temperatures,

levels 3-5

times

of a cells

of similar

a compact

bipolar

plate

material USA a method

describes

microscopically material

dense

for use as an improved

Patent narmber: US 6099990

c9

for

of fabricating carbon

fuel cell electrode.

a

USA

and structural

fuel cell system

compact

and highly

is equipped durable

with

oxygen

by increasing

a very

enrichment

device, so that the power generating

efficiency

is

the oxygen concentration

Patent number:

US 6106963

Blend membranes These solid polymer

and adjusting

The

invention

humidi~ing reactant

relates

and adjusring

gas stream

to

reactant

method

for

the temperature

of a

a

for a PEM fuel cell system,

for air-cooled

systems

or systems

pressure.

Electrode

integrity

characteristics

Applicant: Mazda Motor, Japan

particularly

where

the

describes

with advantageous

an electrode

structure

for a

the cell performance

cost performance.

Patent number: US 6106965

in sulfonated

membranes

sulfonated

This patent

structure

fuel cell which can improve

are pressurised.

density

Oxygen enrichment

permeability,

PPO a high

Planar SOFC stack with metallic interconnect

oxide)

Applicant: Gas Research Institute, USA

Applicant: State University of New York, USA charge

chamber, to enhance

spatially.

using air near ambient

Patent number: US G103413

amorphous

varies

Patent number: WO 00148262

in particular

has desirable

for use in a fuel cell, reactants

diameter

Patent number: US 6106964

resistivity

Applicant: Motorola,

humidifier

Bipolar plates

Patent number: US 6099988

The patent

fuel cell

gas.

membranes.

Carbon electrode

PEM

Patent number: US 6103412

This

fuel distributian

from the inlet

or anode

Applicant: Ballard Power Systems, Canada

a compact

Applicant: Dow Chemical,

with proton that

channels

to the cathode

Humidifying temperature

polymer fuel

plate

of steam.

This patent

The

range.

of the oxidising gas. an

PEM fuel cell

that

perforated

the channel

enhanced

Applicant: Mazda Motor, Japan

polymer

of a hydrogen/CO/

Patent number: WO 00/48261

This

without external steam

reforming,

against

Patent number: US 6099985

starting

treatment

Applicant: Toyota, Japan

operation.

Proton-conducting

give

oxidant

side,

Applicant: Sanyo Electric, Japan

This SOFC with

to

apparatus

steam mix, over a wider temperature

where

relates to start-up

reaction

Applicant: Gas Research Institute, USA anode is fabricated

port,

a CO conversion

and outlet

Patent number: US 6103410

image fashion,

describes

This stack has branching

patent number: US 6099984

SOFC anode for enhanced

intake

can be used for instantaneously

Fuel through

of frozen fuel cell

cell by the introduction

the problem

the

Applicant; FZ Jiilich, Germany

Applicant; IFC, USA

Applicant: General Motors, USA flow

the gas

and automati~y

corrective measures.

Start-up

intended

to

across

direct gas flow from the

Applicant: Toshiba, Japan

distribution.

overcomes

restrict

CO conversion

fuel cell

pressure drop across a flow field and comparing

Patent number: US 6099983

its

plates at one end of

(and extending

gas distribution.

This

Patent number: US 6103409

invention

passage

modification

and gives a uniform

bypassing

intake excellent

Applicant: General Motors, USA

with a predetermined

serpentine

passages)

The patent

inhibits

Mirrored

intake

which

initiating

This

ionically

ports

P&en, number: US 61034 15

and correcting

in such a way that it

temperature

the intake

with internal passages, and

This fuel cell is constructed deposition

Patent number: US 6103414

Plates for uniform gas flow

for their manufacmre.

flooding

Applicant: Toshiba, Japan carbon

especially

Patent number: US 6103078

of fluids

through

provides

membranes

are

Applicant: Aisin Seki, Japan

with fluid distribution

invention

conducting

and with very

they

assemblies, mass production.

Applicant: Lynntech Inc, USA

Applicant: Proton Energy Systems, USA improved

continuous

for

Patent number: US 6103077

The

facilitates

media

membrane-electrode

Membranes

Patent number: US 6096856

This

using

for gas-

and gas diffusion

conductivity,

In this fuel cell, rectifying

proton

for use in fuel cells.

Electrochemical

relates to new structures

electrodes

ionic

Inexpensive

This invention

and their automated

to a process

with PVDE

suitable for PEM fuel cells.

systems

Germany

blended high

diffusion

production

electrodes

Applicant: De Nora, Italy

comprise

poly(phenylene

foil

Fuel Cells Bulletjn No. 31