| Regenerative
Fuel Cells |
Advantages: A single stack could run as
both a fuel cell and electrolyzer
Disadvantages:
None yet available in commercially significant power ranges
Applications: Systems based on intermittent renewable
energy, arbitrage of peak and off-peak electricity prices, self-fueling
UPS systems |
| |
| Other
Types of Fuel Cells |
| CMR Fuel
Cells |
UK developer of fuel cell stacks for portable and
small stationary power generation applications
> "In
a conventional stack, the plates account for around 90% of the
volume and weight, one third of material costs and up to half
of the possible cell area" "at the stack level, CMR
eliminates bipolar flow-field plates" "a mixture of
fuel and oxidant flows through a fully porous anode-electrolyte-cathode
assembly" |
| Hoku Scientific |
"focus is a new [non-PEM] low operating
temperature (LOT) fuel cell technology...Material used for the
Hoku cell membranes, for example, is a fraction of the cost
of Nafion and other leading membrane materials, but has the
potential to improve overall cell performance" |
Hydrocell
Ltd
Finland |
"charge carrier is a specially developed
gel electrolyte. Because of its gel-like electrolyte Hydrocell's
fuel cells are practical for changing conditions - the gel does
not leak out of the fuel cell regardless of the position. On
the other hand, the electrolyte gel can store, deliver and transfer
water formed in fuel cell reactions."
> HC-100
Brochure 
|
| Power
Air |
"developing a commercially viable Zinc-Air
Fuel Cell ("ZAFC") technology that generates reliable,
environmentally sustainable, zero emission energy for portable,
stationary, light mobility, and transportation applications"
> NASDAQ(OTCBB):PWAC |
| PowerZyme |
Enzymatic Fuel Cell Battery: "The
heart of PowerZyme’s™ innovation is the Active Transport Membrane™
or ATM™. The Active Transport Membrane dynamically ‘pumps’ protons
across the membrane with a self-regulating control based on
load, rather than relying on passive processes." |
| Snow Leopard |
hydrogen sulphide solid oxide fuel cell |
| Superprotonic
|
"an energy technology company established
to market and commercialize the innovative solid acid fuel cell
(SAFC) technology developed and patented by the company’s
founders at the California Institute of Technology." |
| Tekion |
"Our first commercially available fuel cell
technology will be our direct formic acid fuel cell using Formira
as it’s fuel. Formira is our brand name for a specialized
formic acid." |
| |
|
Metal-Air
"Fuel Cells"
The devices
being developed by these companies have some similarities to
fuel cells and claim excellent performance, but they are still
really batteries in that they only store energy and require
externally generated power to reprocess or recharge their fuel
components. True fuel cells generate power, not store it. They
rely on a continuous fuel stream and do not not consume themselves
in use or require replacement or reprocessing of their components
to maintain power output. |
| Aluminum-Power,
Inc. |
|
| Arotech |
(formerly Electric Fuel) NASDAQ:ARTX
Electric
Fuel Corporation (EFCX) |
| eVionyx |
|
| GreenVOLT™ Corp (GVC)
|
Saltwater-Air-Magnesium short term/emergency power
generators |
| Metallic
Power |
|
| Trimol
|
"Trimol Group holds the world-wide
rights to an environmentally sound proprietary aluminum-air
fuel cell technology . . . [d]eveloped by Aluminum-Power,
Inc., a Toronto, Canada based Fuel Cell Development Company."
OTC:TMOL
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