# US 10,122,034 B2 · Intelligent system for the dynamic modeling and operation of fuel cells

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- Number: US 10,122,034 B2
- Document ID: US10122034B2
- Status: Granted
- Kind: B2
- Application number: 14/605,522
- Filed: 2015-01-26
- Published: 2015-05-21
- Granted: 2018-11-06
- Earliest claimed: 2006-01-23
- Applicants: Rene Virgilio Mayorga Lopez; Shoumin Song
- Inventors: Rene Virgilio Mayorga Lopez; Shoumin Song
- Web page: https://patentgrep.com/patent/US10122034B2

## CPC

- H01M 8/04552: {of the individual fuel cell}
- G06N 7/08: using chaos models or non-linear system models
- H01M 8/04305: {Modeling, demonstration models of fuel cells, e.g. for training purposes}
- H01M 8/04694: characterised by variables to be controlled
- H01M 8/04992: characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
- H01M 8/1067: characterised by their physical properties, e.g. porosity, ionic conductivity or thickness
- H01M 8/1007: with both reactants being gaseous or vaporised (H01M8/12 takes precedence)
- H01M 8/1065: characterised by the form, e.g. perforated or wave-shaped
- H01M 2008/1095: {Fuel cells with polymeric electrolytes}
- Y02E 60/50: Fuel cells
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A system and method for controlling an output of a dynamic fuel cell is provided. A dynamic fuel cell has a membrane wherein a dimension of the membrane is variable during operation of the dynamic fuel cell in response to a control signal from an intelligent controller. By varying the dimension of the membrane, the output voltage of the dynamic fuel cell can be altered. An intelligent controller is provided that can measure a number of outputs and input parameters of the dynamic fuel cell and approximate input parameters using the measured values to adjust the input of the dynamic fuel cell to the approximated values.

## Claims

### Claim 1

A method for controlling an output of a fuel cell having a membrane between an anode and a cathode and operative to vary at least one effective dimension of the membrane, said method comprising:
continuously sense an output of the fuel cell;
continuously approximate a given effective membrane dimension for a desired output of the fuel cell using a non-linear process model; and
continuously control a membrane dimension control system associated with the fuel cell and operable to change an effective dimension of the membrane in order to selectively change said effective dimension of said membrane to said given effective membrane dimension.

### Claim 2

A method for controlling an output of a fuel cell having a separation layer between an anode and a cathode and operative to vary at least one effective dimension of the separation layer, said method comprising:
continuously sense an output of the fuel cell;
continuously approximate a given effective separation layer dimension for a desired output of the fuel cell using a non-linear process model; and
continuously control a separation layer dimension control system associated with the fuel cell and operable to change an effective dimension of the separation layer in order to selectively change said effective dimension of said separation layer to said given effective separation layer dimension.

### Claim 3 (depends on 2)

The method of claim 2 wherein the separation layer comprises a plurality of layers.

### Claim 4 (depends on 2)

The method of claim 2 wherein the at least one dimension is a thickness of the separation layer and wherein said separation layer dimension control system is operable to vary the thickness of the separation layer by at least one of:
stretching and contracting the separation layer;
applying pressure to outside surfaces of the cathode layer and the anode layer;
introducing electronic pulses into the separation layer;
bending at least one of the cathode layer and the anode layer to compress the separation layer;
where the separation layer comprises a pair of outer layers and an inner layer positioned in between the pair of outer layers, the inner layer containing a liquid film, selectively supplying and evacuating liquid from the inner layer.

### Claim 5 (depends on 2)

The method of claim 2 wherein the at least one dimension is a thickness of the separation layer and wherein the thickness of the separation layer is varied by at least one of:
stretching and contracting the separation layer;
applying pressure to outside surfaces of the cathode layer and the anode layer;
introducing electronic pulses into the separation layer;
bending at least one of the cathode layer and the anode layer to compress the separation layer;
where the separation layer comprises a pair of outer layers and an inner layer positioned in between the pair of outer layers, the inner layer containing a liquid film, selectively supplying and evacuating liquid from the inner layer.

### Claim 6 (depends on 1)

The method of claim 1 wherein the at least one dimension is a contact area between the membrane and the anode layer and the membrane and the cathode layer and wherein said membrane dimension control system is operable to vary the contact area by at least one of:
moving at least one of the cathode layer and the anode layer relative to the membrane;
moving the membrane relative to at least one of the cathode layer and the anode layer;
bending at least one of the cathode layer and the anode layer, relative to the membrane;
moving at least one of the cathode layer and anode layer longitudinally in relation to the membrane.

### Claim 7 (depends on 1)

The method of claim 1 wherein the at least one dimension is a contact area between the membrane and the anode layer and the membrane and the cathode layer and wherein the contact area is varied by at least one of:
moving at least one of the cathode layer and the anode layer relative to the membrane;
moving the membrane relative to at least one of the cathode layer and the anode layer;
bending at least one of the cathode layer and the anode layer, relative to the membrane;
moving at least one of the cathode layer and anode layer longitudinally in relation to the membrane.

### Claim 8 (depends on 1)

The method of claim 1 wherein the at least one dimension is at least one of a thickness of the membrane and a contact area between at least one of the anode layer and the membrane and the cathode layer and the membrane, and said membrane dimension control system is operable to rotate at least one of the cathode layer, the anode layer and the membrane to vary at least one of said thickness and said contact area.

### Claim 9 (depends on 1)

The method of claim 1 wherein the at least one dimension is at least one of a thickness of the membrane and a contact area between at least one of the anode layer and the membrane and the cathode layer and the membrane, and comprising rotating at least one of the cathode layer, the anode layer and the membrane to vary at least one of said thickness and said contact area.

### Claim 10

A method for controlling an output of a fuel cell having a membrane between an anode and a cathode and operative to vary at least one effective dimension of the membrane, said method comprising:
continuously sense an output of the fuel cell;
continuously approximate a given effective membrane dimension for a desired output of the fuel cell using a non-linear process model; and
continuously change an effective dimension of the membrane in order to selectively change said effective dimension of said membrane to said given effective membrane dimension.

### Claim 11 (depends on 10)

The method of claim 10 wherein the at least one dimension of the membrane is at least one of:
a thickness of the membrane and a contact surface between an anode layer and a cathode layer.

### Claim 12 (depends on 10)

The method of claim 10 wherein the at least one dimension is a thickness of the membrane and wherein the thickness of the membrane is varied by at least one of:
stretching and contracting the membrane;
applying pressure to outside surfaces of the cathode layer and the anode layer;
introducing electronic pulses into the membrane;
bending at least one of the cathode layer and the anode layer to compress the membrane;
where the membrane comprises a pair of outer membrane layers and an inner layer positioned in between the pair of outer membrane layers, the inner layer containing a liquid film, selectively supplying and evacuating liquid from the inner layer.

### Claim 13 (depends on 10)

The method of claim 10 wherein the at least one dimension is a contact area between the membrane and the anode layer and the membrane and the cathode layer and wherein the contact area is varied by at least one of:
moving at least one of the cathode layer and the anode layer, relative to the membrane;
moving the membrane relative to at least one of the cathode layer and the anode layer;
bending at least one of the cathode layer and the anode layer, relative to the membrane;
moving at least one of the cathode layer and anode layer longitudinally in relation to the membrane.

### Claim 14 (depends on 10)

The method of claim 10 wherein the at least one dimension is at least one of a thickness of the membrane and a contact area between at least one of the anode layer and the membrane and the cathode layer and the membrane, and comprising rotating at least one of:
the cathode layer and the anode layer relative to the membrane to vary at least one of said thickness and said contact area.

### Claim 15 (depends on 2)

The method of claim 2 wherein the at least one dimension of the separation layer is at least one of:
a thickness of the separation layer and a contact surface between an anode layer and a cathode layer.

### Claim 16

A method for controlling an output of a fuel cell having a separation layer between an anode and a cathode and operative to vary at least one effective dimension of the separation layer, said method comprising:
continuously sense an output of the fuel cell;
continuously approximate a given effective separation layer dimension for a desired output of the fuel cell using a non-linear process model; and
continuously change an effective dimension of the separation layer in order to selectively change said effective dimension of said separation layer to said given effective separation layer dimension.

### Claim 17 (depends on 16)

The method of claim 16 wherein the at least one dimension of the separation layer is at least one of:
a thickness of the separation layer and a contact surface between an anode layer and a cathode layer.

### Claim 18 (depends on 16)

The method of claim 16 wherein the at least one dimension is a thickness of the separation layer and wherein the thickness of the separation layer is varied by at least one of:
stretching and contracting the separation layer;
applying pressure to outside surfaces of the cathode layer and the anode layer;
introducing electronic pulses into the separation layer;
bending at least one of the cathode layer and the anode layer to compress the separation layer;
where the separation layer comprises a pair of outer separation layer layers and an inner layer positioned in between the pair of outer separation layer, the inner layer containing a liquid film, selectively supplying and evacuating liquid from the inner layer.

### Claim 19 (depends on 1)

The method of claim 1
wherein said continuously approximate further comprises continuously approximating each of an amount of fuel, an amount of oxygen, and a temperature for said desired output of the fuel cell using said non-linear process model, and
wherein said continuously change further comprises, based on approximations from said continuously approximate, continuously changing said amount of fuel, said amount of oxygen, and said temperature along with continuously changing said effective dimension of the membrane.

### Claim 20 (depends on 19)

The method of claim 19 wherein said continuously change further comprises simultaneously changing said amount of fuel, said amount of oxygen, said temperature, and said effective dimension of the membrane.

### Claim 21 (depends on 16)

The method of claim 16
wherein said continuously approximate further comprises continuously approximating each of an amount of fuel, an amount of oxygen, and a temperature for said desired output of the fuel cell using said non-linear process model, and
wherein said continuously change further comprises, based on approximations from said continuously approximate, continuously changing said amount of fuel, said amount of oxygen, and said temperature along with continuously changing said effective dimension of the membrane.

### Claim 22 (depends on 21)

The method of claim 21 wherein said continuously change further comprises simultaneously changing said amount of fuel, said amount of oxygen, said temperature, and said effective dimension of the membrane.
