The
Monothermal is a multi-layer laminate that generates electrical
current in the presence of ambient heat.
ABSTRACT
-- SCIENTIFIC
The Monothermal produces electrical current without utilizing
existing methods that require heat differential (any method that
converts temperature differences into electrical energy --
Seebeck Effect, Thomson Effect, etc.) and without requiring a
chemical reaction (i.e. a redox reaction in batteries).
The invention can be said to be similar to photoelectric cells
(solar panels) that motivate electrons by exploiting photons
(light), except that the Monothermal motivates electrons via
infrared radiation -- and any molecular activity that produces
heat -- without a non-differential heated environment.
PLAIN
ENGLISH
The Monothermal laminate creates electrical energy from ambient
heat. Since everything emits some heat and there is really no
such thing as "cold", the Monothermal . . . creates energy
simply while existing in its environment.
"The Monothermal doesn't utilize a redox reaction (batteries) to
create energy, and it's not dependent on the restrictions
inherent in the thermoelectric effect." Todd Guenther, one of
the principals behind the current effort to market and
proselytize the invention says "It's an incredibly simple
construct. When you take a look at the other methods that have
been developed to harness waste heat and convert that heat to
energy, most of them are eccentric in their methodology."
The inventor says an early prototype produced in 1995 worked
uninterrupted for more than a decade, powering LCD clocks and a
tabletop fan in a room-temperature environment.
A review of the patent reveals a very simple device. "An inner
and outer laminate contain a combination of two binder agents,"
says Guenther. "That's really all there is to it. It's a simple
invention from top to bottom - the constituent elements, the
process of combining them, and the flexibility that's achieved
in applying them to nearly any form factor".
The inventor imagines Monothermal being used for everything from
computer cases, television sets, and iPods, to refrigerators,
automobile engine compartments, and rooftop applications. "Even
submersion in thermal wells to provide energy to industry, or
installing the Monothermal in place of - or in concert with -
solar panels," said Guenther. "There's no end to the potential
of finally capturing and utilizing the waste heat generated by
so many of our current devices, appliances, and machines. It's
nearly all wasted energy. We need to recapture it and put it to
use, now more than ever."
Monothermal
Laminate Graphic

Simple, efficient,
inexpensive. This graphic illustrates the basic construction of
the Monothermal laminate. Polyvinyl acetate (functioning as a
polymeric binder) is the only other component required to
construct the Monothermal.
Monothermal
Prototype Photo

Early Monothermal
working prototype, production
date 17 August 1995. Test units worked uninterrupted for more
than a decade, powering LCD clocks and a tabletop fan in a
room-temperature environment.
https://www.youtube.com/watch?v=N-X_p3yIG7k
Ambient
heat to electric power
Using nanotech Lovell monothermal ambient heat is made into
electric power that drives magnets to move a pendulum motor. 24
7 free energy
http://free-energy.ws/walter-lovell/
Walter
Lovell Monothermal Device
...Certainly, one of Walter’s most important inventions was his
discovery of the “Monothermal” junction, which simply produced
electricity when warm. Unlike all other thermodynamic systems
that require some heat to move from a warm side to a cool side,
like in the “Seebeck Effect,” the Lovell Monothermal device does
NOT need a “cool side” to operate. All you have to do is warm it
up, and electricity comes out! The prototype shown here operated
a table-top fan continuously for over 10 years in a constant
“room temperature” environment.
The Lovell Monothermal device is the ultimate, solid-state,
ambient energy converter. A block of these units, filling a
volume of less than 4 cubic feet, and sitting at 80°F (27°C),
could power your home without maintenance for 20 years. These
devices are much easier to manufacture than “solar cells” and
will be less expensive, when mass-produced. They also have the
added advantage of producing electricity both day and night!...
US5945630A / US5989721
DEVICE
AND METHOD FOR GENERATING ELECTRICAL ENERGY
[ PDF ]
Abstract
A device for generating electrical current in the presence of
ambient heat includes an intermediate layer (1) having a
predetermined electronegativity value interposed between a first
outer layer (2) and a second outer layer (3), in which the first
outer layer (2) has an electronegative value less than the
intermediate layer (1), and the second outer layer (3) has an
electronegative value less than the first outer layer (2). The
intermediate layer (1) includes a first binder combination and a
second binder combination. The first binder combination contains
a polymeric binder and a first electronegative material. The
second binder combination contains a polymeric binder and a
second electronegative material. The first and second binder
combinations have a predetermined electronegative value that is
greater than said first and second outer layers. A method of
making and a method of activating the device for the generation
of electricity are also disclosed.
The present invention relates to devices that generate
electrical current and, in particular, to a composite structure
and method of making and utilizing the composite structure to
convert ambient heat to electrical current.
Over the years, many attempts have been made to harness energy
from our environment in order to generate electricity. As a
result, numerous electrochemical and thermoelectrical devices
have been developed to convert solar energy to electricity. For
example, attempts to convert solar energy to electricity have
spawned some major technologies such as photovoltaic conversion
devices. The heat content of solar radiation emitting
electromagnetic radiation and particles is used to provide heat
for generating electricity.
One attempt to achieve the conversion of solar energy to
electricity is found in U.S. Pat. No. 5,421,909 issued to
Ishikawa et al. which is directed to a photovoltaic device
having a semiconductor layer, front and back electrodes, and a
surface protection layer. The photovoltaic device of Ishikawa et
al. converts electromagnetic radiation directly into
electricity. Photovoltaic devices, however, require the use of
semiconducting materials to absorb electromagnetic radiation.
Semiconductor materials require a degree of care and technical
expertise to produce and can be expensive.
Another method of generating electricity is through the use of
an electrochemical system, such as the electrode process which
is the principle process in electrochemical batteries. Important
aspects of the electrode process include oxidation and reduction
occurring as a result of electron transfer in coupled chemical
reactions. Coupled reactions are initiated by production or
depletion of the primary products which are reactants at the
electrode surface. The chemical reaction utilized to produce
electrical energy requires supplying electrons to an electrode
forming a negative terminal and removing the electrons from the
positive terminal. In a lead storage battery, for example,
electrons are supplied to a negative terminal by the oxidation
of metallic lead. At the positive terminal, lead is reduced. The
electrons flowing in an external circuit from the negative to
the positive terminal constitute the desired electric current.
However, electrochemical systems utilize a redox reaction which
ultimately deteriorates the source of chemical components in the
systems.
Examples of efforts to generate electricity through the use of
an electrochemical system such as electrode processes in
batteries have been described in U.S. Pat. Nos. 3,837,920,
4,188,464, 4,892,797, 5,279,910, and 5,419,977. More
specifically, U.S. Pat. No. 3,837,920 to Liang et al. is
directed to a battery containing a solid electrolyte, an alkali
metal anode, and a heavy metal cathode. The battery of the Liang
et al. '920 references utilizes a redox reaction.
U.S. Pat. No. 4,188,464 to Adams et al. is directed to a
composite electrode in bipolar electrolytic cells. The electrode
includes an intermediate graphite layer interposed between two
polymeric layers. Each side of the polymeric layers is in
contact with an anode layer and a cathode layer. The electrode,
however, functions as a battery and involves electrolysis.
U.S. Pat. No. 4,892,797 to Ran et al. involves a bipolar
electrode for electrochemical cells and process for
manufacturing the same. The bipolar electrode contains an
electrically conductive intermediate layer interposed between an
electronegative layer and an electropositive layer. The
intermediate layer is a plastic substrate which includes
electrically conductive particles. The electronegative layer can
be silver coated nickel particles or aluminum. The
electropositive layer can be a metal such as silver, copper,
nickel, and lead. The bipolar electrode of the Ran et al. '797
reference, however, functions in electrochemical cells requiring
a redox reaction. U.S. Pat. No. 5,279,910 to Cysteic et al. is
directed to an improved battery for reversible operation at
ambient temperature. The battery includes a negative electrode,
a composite positive electrode, an electrochemically active
material, an electrolyte, and optionally an electron conductive
material. The Cysteic et al. '977 battery requires a redox
reaction.
U.S. Pat. No. 5,419,977 to Weiss et al. is directed to an
electrochemical device for production of electrical energy. The
electrochemical device involves operatively combined capacitors
which can increase capacitance density and energy storage
capability. The electrochemical device of the Weiss et al. '977
reference requires a redox reaction.
Another method for direct conversion of heat into electrical
energy is via thermoelectrical devices based on the Seebeck
effect, Peltier effect, and Thomson effect. The Seebeck effect
concerns electromotive force (EMF) generated in a circuit
composed of two different conductors whose junctions are
maintained at two different temperatures (e.g., hot and cold
junctions).
Peltier effect generates temperature differences from electrical
energy. Peltier effect refers to the reversible heat generated
at the junction between two different conductors when current
passes through the junction. One of the conductors is connected
to a cold junction and the other conductor is connected to a hot
junction.
Thomson effect involves the reversible generation of heat in a
single current-carrying conductor along which a temperature
gradient is maintained. Thomson heat is proportional to the
product of the current and the temperature gradient. Thomson
heat is referred to as reversible in the sense that the
conductor changes from a generator of Thomson heat to an
absorber of Thomson heat when the direction of either the
current of the temperature gradient is reversed.
Some examples of thermoelectrical devices are thermocouples
(e.g., P-type thermoelectric conversion materials) and
thermoelectric materials consisting of an oxide with perovskite
structure. Thermoelectrical devices, however, are known to have
disadvantages of relatively low efficiencies and high cost per
unit of output. Examples of efforts to generate electricity via
thermoelectrical devices are disclosed in U.S. Pat. Nos.
4,969,956 and 5,057,161. U.S. Pat. No. 4,969,956 to Kreider et
al. is directed to a transparent thin film thermocouple of
Kreider et al. includes a positive element of indium tin oxide
and a negative element of indium oxide formed on a surface by
reactive sputtering with the elements being electrically joined
to form a hot junction for conversion of heat into electricity.
The reactive sputtering is accomplished with a magnetron source
in an argon and oxygen atmosphere.
U.S. Pat. No. 5,057,161 to Komabayashi et al. is directed to a
p-type iron silicide thermoelectric conversion material. The
thermoelectric conversion material patent involves Seebeck
effect which requires two different temperatures.
Each of the technologies set forth above require conditions
which, to a certain extent, constrain their use for a simple
current-producing device which operates as a mere function of
ambient temperature. It is therefore an object of the present
invention to provide a composite structure and a method for
generating electrical current which overcomes the disadvantages
generally associated with the prior art.
SUMMARY OF
THE INVENTION
The present invention is a device for generating electrical
current in the presence of ambient heat. The preferred structure
of the device is a multilayer laminate, and the invention also
includes methods of making and activating the device.
The laminate in accordance with the present invention includes
an intermediate layer having a predetermined electronegativity
value interposed between a first outer layer and a second outer
layer, in which the first outer layer has an electronegative
value less than the intermediate layer, and the second outer
layer has an electronegative value less than the first outer
layer. Preferably, the intermediate layer is formed from a first
and second binder combinations having an electronegative value
from about 2.0 to about 4.0. Preferably, the first outer layer
has an electronegative value from about 1.7 to about 1.9.
Preferably, the second outer layer has an electronegative value
from about 0.7 to about 1.6.
As described above, the intermediate layer preferably is formed
from a first binder combination and a second binder combination.
The first binder combination contains a polymeric binder and a
first electronegative material. The second binder combination
contains a polymeric binder and a second electronegative
material. Preferably, the first and second binder combinations
of the intermediate layer have a predetermined electronegative
value that is greater than either the first or the second outer
layer. The choice of the first and second electronegative
materials result in a layer having an average electronegativity
value greater than the first and second outer layers.
The polymeric binder is preferably polyvinyl acetate, polyvinyl
chloride, or polyvinylidene fluoride. More preferably, the
polymeric binder is polyvinyl acetate.
The first electronegative material of the intermediate layer is
preferable As, B, Po, H, P, Te, At, Ir, Os, Pd, Pt, Rh, Ru, Ag,
Au, Se, C, I, S, Br, Cl, N, O, F, or a mixture thereof. More
preferably, the first electronegative material is phosphorous
(P), and most preferably in the form of phosphorous red.
The second electronegative material of the intermediate layer is
preferable Cr, As, B, Po, H, P, Te, At, Ir, Os, Pd, Pt, Rh, Ru,
Ag, Au, Se, C, I, S, Br, Cl, N, O, F, or a mixture thereof. More
preferably, the second electronegative material is chromium
(Cr), and most preferably in the form of an oxide, e.g., Cr2 O3.
The first outer layer is preferably Cd, In, W, Co, Fe, Ge, Mo,
Ni, Pb, Si, Sn, Ti, Bi, Cu, Hg, Re, Sb, or a mixture thereof.
More preferably, the first outer layer is Cu.
The second outer layer is preferable Cs, Fr, K, Ru, Ba, Na, Ra,
Ca, Li, Sr, Ac, La, Mg, Y, Hf, Sc, Zr, Al, Be, Mn, Ta, Tc, Ti,
Cr, Ga, Nb, V, Zn, or a mixture thereof. More preferably, the
second outer layer is aluminum or aluminum magnesium.
The difference in the electronegativity between the intermediate
layer and the first outer layer is from about 0.1 to about 3.3,
preferably, from about 0.9 to about 1.16, and more preferably,
1.16.
The difference in the electronegativity between the first outer
layer and the second outer layer is from about 0.1 to about 1.2,
preferably, from about 0.3 to about 0.7, and more preferably,
0.7.
As a result of the present invention, a device, a method of
making the device, and a method for generating electrical
current in the presence of only ambient heat can be made. The
device of the present invention can be simply and efficiently
manufactured. The present invention does not require redox
reaction of conventional batteries which result in deterioration
of the source chemical components and corrosion of metal
components.
For a better understanding of the present invention, together
with other and further objects, reference is made to the
following description taken in conjunction with the examples,
the scope of which is set forth in the appended claims.
BRIEF
DESCRIPTION OF THE DRAWINGS
FIG. 1 is an annotated Periodic Table;
FIG. 2 contains a list of electronegative values of elements
from the Periodic Table; and
FIG. 3 is a perspective view of the laminate of the present
invention.
DETAILED
DESCRIPTION OF THE INVENTION
The present invention is a device for generating electrical
current in the presence of ambient heat. The device is
preferably a multilayer structure which includes the use of an
intermediate layer interposed between a first outer layer and a
second outer layer. The present invention also includes methods
of making and utilizing the device for generating electrical
current in the presence of ambient heat.
The laminate in accordance with the present invention includes
an intermediate layer having a predetermined electronegativity
value interposed between a first outer layer and a second outer
layer. The first outer layer has an electronegative value less
than the intermediate layer, and in turn the second outer layer
has an electronegative value less than the first outer layer.
Electronegativity is a relative measure of the ability of an
atom in a molecule to attract electrons to itself. A scale of
electronegativity values has been established by assigning a
value to one element and then comparing other values of
electronegativity to the assigned value.
The most widely used scale of electronegativity values was
developed by Linus Pauling. (Leo J. Malone, Basic Concepts of
Chemistry, 156-160 (2d ed. 1985). According to Linus Pauling,
electronegativity is a periodic property that increases as one
moves to the top and right of the Periodic Table. See FIG. 1.
On Pauling's scale, a value of 4.0 has been assigned to the
highest electronegative element, i.e., fluorine. Other
electronegativity values are then established relative to the
value assigned to fluorine. See FIG. 2.
FIGS. 1 and 2 illustrate that the values of electronegativity of
the representative elements tend to increase from left to right
and from bottom to top of the Periodic Table. More specifically,
electronegativity values tend to be low for the metallic
elements in the lower left portion of the Periodic Table and are
high for the nonmetals in the upper right portion of the
Periodic Table. An exception to this trend is found in noble
gases, which have electronegativity values approaching zero.
Elements with low values of electronegativity have little
attraction for electrons. They give up electrons easily.
The laminate in accordance with the present invention includes
an intermediate layer having a predetermined electronegativity
value interposed between a first outer layer and a second outer
layer, in which the first outer layer has an electronegative
value less than the intermediate layer, and the second outer
layer has an electronegative value less than the first outer
layer. Preferably, the intermediate layer comprises a first and
second combinations having an electronegative value from about
2.0 to about 4.0. Preferably, the first outer layer has an
electronegative value from about 1.7 to about 1.9. Preferably,
the second outer layer has an electronegative value from about
0.7 to about 1.6.
In a preferred embodiment of the present invention, the
intermediate layer is formed from a first binder combination and
a second binder combination. The first binder combination
includes a polymeric binder and a first electronegative
material. The second binder combination includes a polymeric
binder and a second electronegative material. The first and
second binder of the intermediate layer combinations have a
predetermined electronegative value that is greater than either
the first or the second outer layer. The choice of the first and
second electronegative materials result in an layer having an
average electronegativity value greater than the first and
second outer layers.
The polymeric binder is preferably polyvinyl acetate, polyvinyl
chloride, or polyvinylidene fluoride. More preferably, the
polymeric binder is polyvinyl acetate.
The first electronegative material of the intermediate layer is
preferably As, B, Po, H, P, Te, At, Ir, Os, Pd, Pt, Rh, Ru, Ag,
Au, Se, C, I, S, Br, Cl, N, O, F, or a mixture thereof. More
preferably, the first electronegative material is phosphorous
(P), and most preferably in the form of phosphorous red.
The second electronegative material of the intermediate layer is
preferably Cr, As, B, Po, H, P, Te, At, Ir, Os, Pd, Pt, Rh, Ru,
Ag, Au, Se, C, I, S, Br, Cl, N, O, F, or a mixture thereof. More
preferably, the second electronegative material is chromium
(Cr), and most preferably in the form of an oxide, e.g., Cr2 O3.
In the present invention, the first and second electronegative
materials are also heat sensitive materials. A heat sensitive
material is a material which responds to a temperature above 32
DEG F. by inducing electrons in a molecule to move. Preferably,
the heat sensitive material responds to a temperature of 32 DEG
F. to 350 DEG F.
The ratio of the polymeric binder to the first electronegative
material of the first binder combination is from about 4:1 to
1:1, and preferably about 2:1.
The ratio of the polymeric binder to the second electronegative
material of the second binder combination is from about 4:1 to
1:1, and preferably about 2:1.
The first outer layer is preferably Cd, In, W, Co, Fe, Ge, Mo,
Ni, Pb, Si, Sn, Ti, Bi, Cu, Hg, Re, Sb, or a mixture thereof.
More preferably, the first outer layer is Cu.
The second outer layer is preferably Cs, Fr, K, Ru, Ba, Na, Ra,
Ca, Li, Sr, Ac, La, Mg, Y, Hf, Sc, Zr, Al, Be, Mn, Ta, Tc, Ti,
Cr, Ga, Nb, V, Zn, or a mixture thereof. More preferably, the
second outer layer is aluminum or aluminum magnesium.
In the present invention, the greater the differential value of
the electronegativity of the intermediate, first outer, and
second outer layers in the laminate, the greater the electrical
current output.
The difference in the electronegativity between the intermediate
layer and the first outer layer is from about 0.1 to about 3.3,
preferably, from about 0.9 to about 1.16, and more preferably,
1.16.
The difference in the electronegativity between the first outer
layer and the second outer layer is from about 0.4 to about 1.2,
preferably, from about 0.3 to about 0.7, and more preferably,
0.7.
The laminate according to the present invention consists of a
three-layer structure wherein the intermediate layer is
laminated between the first outer layer and the second outer
layer.
Preferably, the structure is prepared by (a) applying a first
binder combination which contains a first electronegative
material having a predetermined electronegativity value to a
first outer layer, (b) applying a second binder combination
which contains a second electronegative material having a
predetermined electronegativity value to a second outer layer,
and (c) compressing the first and second outer layers to form an
intermediate layer from the first and second binder
combinations. The first outer layer has an electronegativity
value less than the first electronegative material of said first
binder combination. The second outer layer has an
electronegativity value less than the second electronegative
material of the second binder combination. The second outer
layer also has an electronegativity value less than the first
electronegative material of the first outer layer. The
intermediate layer has an electronegativity value greater than
the first and second outer layers.
The method of the present invention also includes a method for
generating electrical current by exposing a laminate set forth
above to heat, e.g., a temperature of at least about 32 DEG F.
to 250 DEG F. Unexpectedly, ambient heat is generally sufficient
to generate electrical current.
In the presence of heat, the electrons in the laminate of the
present invention flow in a circuit from high electronegativity
to low electronegativity. It is believed this flow creates a
void in the charge balance and therefore attracts the electrons
to continuously flow in response to the ambient temperature. The
flow of electrons increases in proportion with the increase of
heat.
FIG. 3 illustrates the three layers of the laminate of the
present invention and the flow of electrons in the laminate of
the invention.
In the three layer embodiment depicted in FIG. 3, the laminate
of the present invention is prepared by (a) applying a first
binder combination of the intermediate layer 1 to the first
outer layer 2, (b) applying a second binder combination of the
intermediate layer 4 to the second outer layer 3, and (c)
pressing the first and second outer layers 2 and 3 together to
form the intermediate layer.
Examples have been set forth below for the purpose of
illustration and to describe the best mode of the invention at
the present time. The scope of the invention is not to be in any
way limited by the Examples set forth herein.
EXAMPLES
The following examples are presented to demonstrate the efficacy
of the present invention by comparing the invention to a control
sample in which the electronegativity values of the layers in
the laminate are the same.
EXAMPLE 1
Control Sample
A three-layer laminate was prepared. A first outer layer of a
1.5 square inch copper foil was coated with polyvinyl
acetate/phosphorus red in a 2:1 ratio. Another outer layer of a
1.5 square inch copper foil was coated with chromic
oxide/polyvinyl acetate in a 1:2 ratio. The coated sides of the
copper foils were pressed together to form an intermediate
layer.
The difference in the electronegativity between the intermediate
layer and the copper layers was 0.52. The electronegativity of
each of the two outer layers were the same.
The resulting three-layer laminate was placed under room
temperature (70 DEG F.), 100 DEG F., and 212 DEG F. Voltage and
amperage of the laminate were measured and the results are
illustrated in Table 1.
The following examples are presented to demonstrate that
electrical current is produced by the laminate of the present
invention.
EXAMPLE 2
Laminate of the Present Invention
A three-layer laminate was prepared in the following manner. A
first outer layer of a 1.5 square inch cooper foil was coated
with polyvinyl acetate/phosphorus red in a 2:1 ratio. Another
outer layer of a 1.5 square inch aluminum was coated with
chromic oxide/polyvinyl acetate in a 1:2 ratio. The coated side
of the copper foil was pressed together against the coated side
of the aluminum foil to form an intermediate layer.
The difference in the electronegativity between the intermediate
layer and the aluminum layer was 0.32. The difference in the
electronegativity of the copper outer layer and the aluminum
layer was 0.40. The difference in the electronegativity between
the intermediate layer and the copper layer was 0.52.
The resulting three-layer laminate was placed under room
temperature (70 DEG F.), 100 DEG F., and 212 DEG F. Voltage and
amperage of the laminate were measured and the results are
illustrated in Table 1.
EXAMPLE 3
Laminate of the Present Invention
A three-layer laminate was prepared. A first outer layer of a
1.5 square inch copper foil was coated with polyvinyl
acetate/phosphorus red in a 2:1 ratio. Another outer layer of a
1.5 square inch aluminum magnesium was coated with chromic
oxide/polyvinyl acetate in a 1:2 ratio. The coated side of the
copper foil was pressed together against the coated side of the
aluminum magnesium foil to form an intermediate layer.
The difference in the electronegativity between the intermediate
layer and the aluminum magnesium layer was 1.02. The difference
in the electronegativity of the copper outer layer and the
aluminum magnesium layer was 0.55. The difference in the
electronegativity between the intermediate layer and the copper
layer was 0.52.
The resulting three-layer laminate was placed under room
temperature (70 DEG F.), 100 DEG F., and 212 DEG F. Voltage and
amperage of the laminate were measured and the results are
illustrated in Table 1.
TABLE 1
<tb>_________________________________________
<tb>Control Sample Laminate of the Present Invention
<tb>EXAMPLES:
1 1 1 2 2 2 3 3 3
<tb>_________________________________________
<tb>Temp. 70 DEG
100 DEG F.
212 DEG F.
70 DEG F.
100 DEG F.
212 DEG F.
70 DEG F.
100 DEG F.
212 DEG F.
Volts 0 0 0 0.25
0.50
0.75
0.75
1.00
1.20
(v)
Amps. 0 0 0 0.03
0.06
0.25
0.20
1.00
2.00
(mA)
The amount of electrical current of Examples 1, 2, and 3 were
determined by measuring the voltage and the amperage of the
electrical current.
From Table 1 it is readily apparent that the amount of
electrical current produced was proportional to the difference
in the electronegativity values between the layers of the
laminate of Examples 1, 2, and 3. Control Example 1 demonstrated
that when there was no difference in the electronegativity
values between the outer layers, no electrical current was
produced. In Example 2, where there was a difference in the
electronegativity values of the three layers, an electrical
current was produced. In Example 3, where there was a greater
difference in the electronegativity values of the three layers,
in comparison to Example 2, a greater electrical current was
produced. Thus, the above examples illustrate that the greater
the difference in the electronegativity values between the
layers, a greater electrical current can be produced. Moreover,
as will be apparent to one skilled in the art, increased
temperatures of ambient heat resulted in an increased production
of electrical current.
Thus, while there have been described what are presently
believed to be the preferred embodiments, those skilled in the
art will appreciate that other and further changes and
modifications can be made without departing from the true spirit
of the invention, and it is intended to include all such changes
and modifications within the scope of the claims which are
appended hereto.