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Electromagnetic open loop antenna with self-coupling element
An antenna is provided for the new combined GPS and GLONASS technologies in single port for tracking and navigation applications in wireless devices. The...
A multiband antenna comprising a substrate having first and second surfaces. A first conductive plate is provided on the first surface and a second conductive...
Antenna assembly and wireless communication device using the same
An antenna assembly includes a first antenna, a second antenna, and at least one connecting member. The first antenna includes a radiator and at least one...
Antenna structure and wireless communication device
An antenna structure includes a feed end, a ground end, a number of antenna units, and a number of connection sections corresponding to the antenna units. The...
Methods for manufacturing an antenna tuning element in an electronic
Custom antenna structures may be used to improve antenna performance and to compensate for manufacturing variations in electronic device antennas. An electronic...
Surface acoustic wave transponder package for down-hole applications
A method and apparatus for packaging surface acoustic wave transponders for use in down-hole or other extreme environmental applications. An exemplary ID tag...
A signal splitter for creating at least two symmetrical equal-power signals from an input signal for use in an amplifier device includes at least one input...
Compensation for length differences in vias associated with differential
A circuit may include a differential via that may include a first via having a first-via length and a second via having a second-via length longer than the...
In one embodiment, the cavity filter includes a housing defining a cavity, and at least one post projecting from a first interior surface of the housing towards...
Hydrogen-treated semiconductor metal oxides for photoelectrical water
A method of electrode hydrogenation for photoelectrochemical (PEC) water oxidation is provided that includes annealing a PEC electrode in air, and annealing the...
The present invention relates to sodium oxygen cells comprising (A) at least one anode comprising sodium, (B) at least one gas diffusion electrode comprising at...
Battery system and method for cooling the battery system
A battery system having a cooling plate with a conduit therein is provided. The system further includes a battery module having first and second battery cells....
Active thermal management and thermal runaway prevention for high energy
density lithium ion battery packs
The present disclosure provides a system, method, and apparatus for battery thermal management. In one or more embodiments, the disclosed method involves...
Battery with reference electrode for voltage monitoring
A lithium-ion battery structure with a third electrode as reference electrode is disclosed. The reference electrode may be fabricated from lithium metal,...
Lithium sulfur battery cathode electrode surface treatment during
Methods and apparatus are provided for discharging a Li--S battery having at least one battery unit comprising a lithium-containing anode and a ...
Method for performing cell balancing of a battery system based on cell
A method for calculating the charge to balance for cells in a multi-cell battery. The method determines a depletion-goal state of charge (SOC) for the battery...
Entire solid lithium secondary battery
The present invention provides an entire solid lithium secondary battery comprising: a cathode; an anode; and a solid electrolyte layer disposed between the...
Entire solid lithium secondary battery
The present invention provides an entire solid lithium secondary battery comprising: a cathode; an anode; and a solid electrolyte layer interposed between the...
Electrolyte solvent for cathode active material composed of lithium oxo
acid salt, electrolyte solution for...
An electrolyte solvent for a cathode active material composed of lithium oxo acid salt. The solvent is used for a lithium ion secondary battery using the...
Ionic compound, method for producing the same, and ion conductive material
An ionic compound is represented by formula (1): AM(OY.sup.1)(OY.sup.2)(OY.sup.3)(OY.sup.4). A is a group 1 element. M is a group 13 element. Y.sup.1 is one...
Non-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery has a negative electrode containing graphite particles as a negative electrode active material, a positive electrode...
Preventing internal short circuit in a lithium-ion battery cell
Embodiments of methods for preventing internal short circuits in a lithium-ion battery cell. In an embodiment, a method of manufacturing a lithium-ion battery...
Sealed secondary battery and manufacturing apparatus and manufacturing
According to one embodiment, a manufacturing apparatus for a sealed secondary battery includes a chamber, pressure reduction unit, sealer transfer unit, and...
Hemmed fuel cell stack enclosure
A fuel cell system is provided which includes a compression retention enclosure with upper and lower compression shells and side sheet components coupled by...
Fuel cell module
In a fuel cell stack constituting a fuel cell module, electrolyte/electrode assemblies and separators are alternately laminated. An electrolyte/electrode...
Method for making anion electrolyte membrane
In a method for making anion electrolyte membrane a fluorinated poly(aryl ether) ionomer is dissolved in a solvent to form a ionomer solution. A crosslink...
Polymer electrolyte membrane having alkylether graft chain
An electrolyte membrane having alkylether graft chains for use in a fuel cell produced by a method of producing an electrolyte membrane for use in a fuel cell,...
Electrolyte membrane for fuel cell, electrode for fuel cell, and fuel cell
employing the same
An electrolyte membrane for a fuel cell includes: an inorganic ionic conductor including a trivalent metal element, a pentavalent metal element, phosphorous,...
Polymer electrolyte membrane and membrane/electrode assembly for polymer
electrolyte fuel cell
A polymer electrolyte membrane includes: (A) an ion exchange resin comprising cation exchange groups which comprise protons; (B) a cerium ion; and (C) at least...
Anion conducting electrolyte membrane and manufacturing method thereof
An anion conducting electrolyte membrane with high performance where the electric conductivity and the water uptake are balanced, and a method of manufacturing...
Fuel cell system and method for operating same
A fuel cell system has a fuel cell for generating electricity by reacting a fuel gas with an oxidant gas and an exhaust flow passage for exhausting the fuel...
Huge stack for flat-tubular solid oxide fuel cell and manufacturing method
The invention relates to a stack for a solid oxide fuel cell and a manufacturing method thereof, and more specifically, to a stack for a high-capacity solid...
Solid oxide fuel cell system
To provide a solid oxide fuel cell system capable of efficiently and simply controlling a low speed fuel cell module and a high speed inverter. The invention is...
Apparatus and method of in situ catalyst degradation detection during fuel
Disclosed herein are catalyst degradation detection assemblies and methods of catalyst degradation detection that can be performed in-situ. One embodiment of an...
An air battery having a main body including a container package member, an electrolytic solution contained in the container package member, a cathode having a...
Controls giving -25.degree. C. freeze start capability to a fuel cell
A method for shutting down a fuel cell system including operating a fuel cell stack. the method includes providing an increased cathode air flow so as to dry...
Active cathode temperature control for metal-air batteries
A metal-air battery is disclosed, including a cathode temperature controller that identifies a power-boosted operating temperature at which a projected power...
Heater with a fuel cell stack assembly and a combustor and method of
A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of...
Carbon cladded composite flow field plate, bipolar plate and fuel cell
The present invention provides a carbon-cladded composite composition for use as a fuel cell flow field plate or bipolar plate. In one preferred embodiment, the...
Temperature control method and battery system
A temperature control method and a battery system create an optimal temperature range for operating a battery. The battery cells of the battery lie in several...
Air electrode material powder for solid oxide fuel cell and its production
To provide an air electrode material powder for a solid oxide fuel cell, comprising a novel LSCF powder having a highly uniform composition suitable as an air...
Process for producing catalyst for direct-liquid fuel cell, catalyst
produced by the process and uses thereof
In a direct-liquid fuel cell supplied directly with a liquid fuel, a process for producing an electrode catalyst for a direct-liquid fuel cell is provided which...
Method for producing porous carbon materials having mesopores and catalyst
support for a fuel cell produced...
The present invention relates to a method for producing porous carbon materials comprising the following steps: (S1) forming carbon coatings on surfaces of...
Catalyst for oxygen reduction reaction in fuel cells
A method for making a carbon-metal-nitrogen oxygen reducing cathode catalyst, the method comprising mixing a carbon source with a transition metal precursor to...
Cathode current collector coated with primer and magnesium secondary
battery comprising the same
Disclosed is a current collector prepared by coating a primer on a metallic base and a magnesium secondary battery including the same. The primer includes a...
An electrode body includes a laminated body and an insulating fixing member. The laminated body includes a positive-electrode active material layer, a...
Carbon material and method for producing same
(Problem) A porous carbon material having excellent graphite crystallinity, good carrier mobility and proper porosity, a porous carbon material having edges of...
Method for producing non-graphitizable carbon material, negative electrode
material for lithium ion secondary...
A method for producing a non-graphitizable carbon material includes providing a raw material of a non-graphitizable carbon material. The raw material is...
Lithium battery and method of preparing the same
A method of preparing a lithium battery according to an embodiment of the present invention may include preparing a mixture including lithium phosphorus sulfide...
Positive electrode materials for lithium-ion batteries and method for
preparing the same
A method for modifying a positive electrode material for a lithium-ion battery. The method includes: a) grinding a mixture of manganese dioxide and lithium...