| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429447000 | Of liquid reactant or reactant in electrolyte | 24 |
| 20100196776 | AUTO IGNITION TYPE AUTOTHERMAL REFORMER AND FUEL CELL SYSTEM HAVING THE SAME - An auto ignition type autothermal reformer (ATR) performs reproducible ignition using a catalyst that performs ignition without a separate ignition unit, such as an igniter or heating wire, and a fuel cell system having the ATR. The ATR includes a reaction container having a first opening through which a fuel is introduced into the reaction container and a second opening through which a reformate is discharged from the reaction container, the fuel having a mixture of an aqueous primary fuel solution and hydrogen peroxide; a first catalyst disposed adjacent to the first opening in the reaction container, the first catalyst being a granular catalyst; a second catalyst disposed at the rear portion of the first catalyst to promote an autothermal reforming reaction; and a third catalyst disposed at the rear portion of the second catalyst to promote an oxidation reaction. | 08-05-2010 |
| 20100239936 | FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME - A fuel cell system, which can supply a stable flow rate of fuel to a fuel cell stack is disclosed. The fuel cell system may include a fuel cell stack for generating electricity by an electrochemical reaction of a fuel and an oxidizing agent, a fuel supply unit for supplying a fuel to the fuel cell stack, an oxidizing agent supply unit for supplying an oxidizing agent to the fuel cell stack, and a flow rate controller installed between the fuel cell stack and the fuel supply unit. The fuel cell system may include a feed pump for pressurizing the fuel, a first resistor connected to the front end of the feed pump to reduce flow rate and a second resistor connected to the rear end of the feed pump to reduce flow rate. A method of operating a fuel cell system is also disclosed. The method may include supplying fuel to a fuel cell stack from a fuel supply unit, reducing a flow rate by a first resistor, activating a feed pump, reducing a flow rate by a second resistor, and stopping the feed pump. | 09-23-2010 |
| 20110129755 | Power Supply Device and Pressure Regulator - According to one embodiment, a power supply device includes a fuel cell, a pipe passage, a fuel pump, a component, a tilt sensor, a pressure regulator, a pressure calculator, and a pressure controller. The fuel cell generates electric power using liquid fuel. The pipe passage supplies the liquid fuel to the fuel cell. The fuel pump sends the liquid fuel to the pipe passage. The component is located in the pipe passage. The tilt sensor detects a tilt angle of the component. The pressure regulator regulates the pressure of the liquid fuel applied to the component. The pressure calculator calculates a variation in the pressure of the liquid fuel applied to the component based on the distance between the component and the pressure regulator and the tilt angle. The pressure controller controls the pressure regulator to maintain the pressure applied to the component within an allowable pressure range. | 06-02-2011 |
| 20110136032 | FUEL CELL SYSTEM AND ELECTRONIC DEVICE - A fuel cell system with which flooding phenomenon of a fuel vaporization section is able to be suppressed without losing power generation characteristics is provided. In a fuel pump, upper limit frequency at which opening/closing operation of check valves is enabled is lower than mechanical resonance frequency of a piezoelectric body. Further, control is exercised so that oscillation frequency of the piezoelectric body is in the vicinity of the resonance frequency in a certain case. Thereby, while fuel supply operation by the fuel pump is stopped, a liquid fuel of the fuel pump is heated by oscillation of the piezoelectric body, and the heated liquid fuel is supplied to a fuel vaporization section. Further, since the generated heat is a heat amount generated by oscillation of the piezoelectric body, power generation characteristics in the power generation section are not lost differently from the case in the past. | 06-09-2011 |
| 20110177417 | FUEL CELL STACK SYSTEM HAVING MULTIPLE SUB-STACKS THAT ARE REPLACEABLE ONLINE - A fuel cell stack system having multiple sub-stacks that are replaceable online is disclosed. In one aspect of the present disclosure, the fuel cell stack system includes multiple fuel cell sub-stacks electrically coupled to one another, the multiple fuel cell sub-stacks include multiple fuel cells electrically coupled to one another enclosed in a sub-stack vessel. Each of the multiple fuel cells can include a composite cathode element and an anode chamber coupled to the composite cathode element. In one embodiment, each of the multiple fuel cell sub-stacks is replaceable online. | 07-21-2011 |
| 20110189574 | Pressurized Fuel Cell Cartridges - Disclosed herein is a fuel supply comprising a compressed gas chamber and liquid fuel chamber. A pressure regulator connects the compressed gas chamber to the liquid fuel chamber. The pressure regulator is capable of taking a high pressure input from the compressed gas chamber and providing a substantially constant lower output pressure to the liquid fuel chamber. The pressure of the compressed gas chamber can decrease over time, but the pressure that urges liquid fuel out of the liquid fuel chamber remains substantially at the same level. | 08-04-2011 |
| 20110250519 | FUEL CELL SYSTEM - The aim of the invention is to improve the accuracy of estimating residual water content in a fuel cell system adopting an intermittent operation mode and to accurately suppress cell voltage reduction due to water accumulation caused by the intermittent operation. The fuel cell system includes: a fuel cell having a cell laminate; an estimating unit for estimating a residual water content distribution in a reactant gas flow channel and a moisture content distribution in an electrolyte membrane in a cell plane of each single cell while taking into consideration water transfer that occurs between an anode electrode and a cathode electrode via the electrolyte membrane; and an operation control unit which changes the content of an intermittent operation when a residual water content in the reactant gas flow channel estimated by the estimating unit is equal to or greater than a predetermined threshold. | 10-13-2011 |
| 20110311896 | INTEGRATED SYSTEM FOR ELECTROCHEMICAL ENERGY STORAGE SYSTEM - The present disclosure relates to electrochemical energy storage systems. In particular, the present disclosure relates to particular systems and methods for providing a compact framework in which to house an electrochemical energy storage system. Various embodiments of electrochemical energy storage systems are disclosed that include a flow manifold and a flow manifold cover. The flow manifold may provide a plurality of channels for distributing liquid reactant to an electrical cell stack. The flow manifold may be utilized in conjunction with a flow manifold cover. The flow manifold cover may be configured to support a variety of components of a liquid reactant distribution system. Such components may include liquid reactant pump motors, inlet and outlet ports, a reference cell, and a variety of sensors. The distribution of liquid reactants to the cell stack from the inlet and outlet ports may be accomplished by way of the flow manifold cover. | 12-22-2011 |
| 20120100451 | METAL CO-CATALYST ENHANCER OF ELECTRO-OXIDATION OF ETHANOL - A process for the highly efficient oxidation of ethanol in fuel cells involves the addition of a metal co-catalyst oxidation enhancer to the fuel cell electrolyte in soluble form. The enhancer vastly improves the rate of ethanol ethanol oxidation and promotes oxidation of the C—C bond to CO | 04-26-2012 |
| 20120107712 | METHOD FOR OPERATING A FUEL CELL, AND A CORRESPONDING FUEL CELL - The present invention relates to a process for operating a fuel cell, especially for operating a fuel cell in which the electrolyte responsible for the proton conduction is volatile. | 05-03-2012 |
| 20130017467 | LIQUID CONTAINERS AND APPARATUS FOR USE WITH POWER PRODUCING DEVICES - A fuel reservoir for dispensing liquid fuel with a dispensing appliance includes a container having an opening, a liquid fuel in the container, a needle-pierceable septum disposed across the opening of the container, and a locking surface disposed on an exterior surface of the container and configured to engage a locking mechanism of a dispensing appliance. | 01-17-2013 |
| 20130171537 | FORWARD CHECK VALVE AND FUEL CELL SYSTEM - A forward check valve and a fuel cell system in which fluid control is performed with increased reliability when a highly active fluid is used are structured such that when an edge portion of a cap is joined to an edge portion of a valve housing, a peripheral edge portion of a diaphragm is pushed and sandwiched by a peripheral edge portion of the cap and a placement portion. Further, the diaphragm is formed of rubber. As a result, the peripheral edge portion of the diaphragm is compressed by the peripheral edge portion of the cap and the placement portion, so that the degree of contact at a contact portion between the placement portion and the peripheral edge portion of the diaphragm becomes very high. Consequently, in the forward check valve, joints of the members including a joint of the edge portion of the cap and the edge portion of the valve housing do not contact methanol. | 07-04-2013 |
| 20130216928 | ELECTRONIC DEVICE - According to an aspect, an electronic device include: a fuel supply port; a fuel tank for storing a liquid fuel to be supplied from the first supply port through a first fluid channel; a fuel cell for generating power by using the liquid fuel supplied from the fuel tank through a second fluid channel; a first valve that is installed in the second fluid channel for controlling supply of the liquid fuel to the fuel cell; a voltage generator that is installed in the first fluid channel for generating a voltage using a pressure of the liquid fuel that is supplied from the fuel supply port; and a valve control unit for controlling an open/closed state of the first valve according to an application of the voltage. | 08-22-2013 |
| 20140193736 | Fuel Cell Systems and Related Methods - A fuel cell system having a fuel cell generator and a fuel cartridge that is removably attachable to the fuel cell generator is disclosed. The fuel cartridge includes a housing having a port, a normally closed valve disposed in the housing that gates fuel emerging from the port, the valve having a poppet that modulates opening of the valve, the poppet having a control surface. The fuel cell generator has a moveable pintle coupled to the poppet, and the moveable pintle is operative over a range of motion which causes the poppet to move between a closed state and at least one open state. | 07-10-2014 |
| 20140363753 | REDOX FLOW BATTERY - An RF battery in which an amount of leakage of an electrolyte in a tank can be reduced by means of a leakage prevention hole provided on the upper side of the tank, at the time of an accident to an upstream pipe and the like, through an inverted U-shaped pipe formed of an accommodated pipe and a portion of the upstream pipe according to the principle of a siphon. | 12-11-2014 |
| 20150147673 | High-Energy-Density, Aqueous, Metal-Polyiodide Redox Flow Batteries - Improved metal-based redox flow batteries (RFBs) can utilize a metal and a divalent cation of the metal (M | 05-28-2015 |
| 20150349369 | High-Energy-Density, Nonaqueous, Redox Flow Batteries Having Iodine-based Species - Nonaqueous redox flow batteries (RFBs) can utilize a metal and a cation of the metal (M | 12-03-2015 |
| 20160028098 | PASSIVE PROTON EXCHANGE MEMBRANE FUEL CELL - A passive-delivery fuel cell system an anode with a fuel flow channel extending along the body and fluidly connecting the inlet to the outlet, wherein a volume of the flow channel per unit length of the anode body increases along the length of the body towards the second end, a capillary check valve in fluid communication with the anode inlet, a vented fuel cartridge in fluid communication with the anode outlet, and a pump in fluid communication with the vented fuel cartridge, the pump configured to pump fuel from the vented fuel cartridge to the inlet. | 01-28-2016 |
| 20160043423 | SMALL ORGANIC MOLECULE BASED FLOW BATTERY - The invention provides an electrochemical cell based on a new chemistry for a flow battery for large scale, e.g., gridscale, electrical energy storage. Electrical energy is stored chemically at an electrochemical electrode by the protonation of small organic molecules called quinones to hydroquinones. The proton is provided by a complementary electrochemical reaction at the other electrode. These reactions are reversed to deliver electrical energy. A flow battery based on this concept can operate as a closed system. The flow battery architecture has scaling advantages over solid electrode batteries for large scale energy storage. | 02-11-2016 |
| 20220140371 | REDOX FLOW BATTERY - A redox flow battery includes a tank configured to store an electrolyte and a distribution mechanism to distribute the electrolyte to a battery cell. The tank has a partition portion partitioning a space inside the tank into a first space and a second space, the distribution mechanism has a distribution passage through which the electrolyte is distributed between the first space and the second space via the battery cell, and the partition portion is composed of a flexible material. | 05-05-2022 |
| 429448000 | With concentration control | 4 |
| 429449000 | With concentration measuring means | 4 |
| 20100221631 | FUEL CELL SYSTEM AND TRANSPORTATION EQUIPMENT INCLUDING THE SAME - A fuel cell system for use in transportation equipment, for example, can determine an abnormality in its fuel supply device without additional detectors being provided for abnormality detection. The fuel cell system is mounted on a motorbike, and includes a cell stack which includes a plurality of fuel cells, an aqueous solution pump arranged to supply aqueous methanol solution to the cell stack, a controller which includes a CPU, an inflow temperature sensor arranged to detect a temperature of aqueous methanol solution which is introduced to the cell stack, and an outflow temperature sensor arranged to detect a temperature of aqueous methanol solution discharged from the cell stack. The CPU obtains an inflow outflow temperature difference by calculating a difference between a detection result from the inflow temperature sensor and a detection result from the outflow temperature sensor. Then, the CPU compares the inflow outflow temperature difference to a predetermined value, and thereby determines whether or not there is any abnormality in the aqueous solution pump. | 09-02-2010 |
| 20100323264 | FUEL SYSTEM USING REDOX FLOW BATTERY - An automotive or other power system including a flow cell, in which the stack that provides power is readily isolated from the storage vessels holding the cathode slurry and anode slurry (alternatively called “fuel”) is described. A method of use is also provided, in which the “fuel” tanks are removable and are separately charged in a charging station, and the charged fuel, plus tanks, are placed back in the vehicle or other power system, allowing fast refueling. The technology also provides a charging system in which discharged fuel is charged. The charged fuel can be placed into storage tanks at the power source or returned to the vehicle. In some embodiments, the charged fuel in the storage tanks can be used at a later date. The charged fuel can be transported or stored for use in a different place or time. | 12-23-2010 |
| 20110217614 | DIRECT FORMIC ACID FUEL CELL PERFORMING REAL TIME MEASUREMENT AND CONTROL OF CONCENTRATION OF FORMIC ACID AND OPERATION METHOD THEREOF - Provided are a direct formic acid fuel cell and a method of operation thereof capable of maintaining performance constantly through implementing the real time measurement and control of formic acid concentration. | 09-08-2011 |
| 20140017586 | FUEL CELL APPARATUS AND DRIVING METHOD THEREOF, AND COMPLEX CARTRIDGE FOR THE SAME - A fuel cell apparatus includes: a fuel cell stack comprising a plurality of unit cells; a mixer storing a fuel mixture solution supplied to the fuel cell stack; a mixture solution sensor measuring a residual amount of the fuel mixture solution stored in the mixer; a mixture solution control pump capable of supplying the fuel mixture solution stored in a cartridge to the mixer or withdrawing the fuel mixture solution stored in the mixer to the cartridge in order to adjust a quantity of fuel mixture solution in the mixer; and a control unit receiving a residual measurement signal from the mixture solution sensor indicating both quantity and fuel concentration of the fuel mixture solution stored in the mixer, and driving the mixture solution control pump to effect the desired quantity and fuel concentration of the fuel mixture solution in the mixer. | 01-16-2014 |
