An electrochemical direct heat to electricity converter includes a primary thermal energy source; a working fluid; an electrochemical cell comprising at least one membrane electrode assembly including a first porous electrode, a second porous electrode and at least one membrane, wherein the at least one membrane is sandwiched between the first and second porous electrodes and is a conductor of ...

An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.

Electrochemical cells, such as those present within flow batteries, can include at least one electrode with one face being more hydrophilic than is the other. Such electrodes can lessen the incidence of parasitic reactions by directing convective electrolyte circulation toward a separator in the electrochemical cell. Flow batteries containing the electrochemical cells can include: a first half-cell containing a first ...

Heat resistant, highly conductive electrochemical cells for high temperature applications and methods of their assembly are described herein. The cells have at least two electrodes and at least one separator enclosed in heat resistant ceramic enclosure with metalized terminals on its bottom. Methods of the electrodes' tabs welding to inside connectors and the electrodes' coating are also disclosed. The resulting ...

An apparatus for forming a vacuum in a sealed enclosure through an electrochemical reaction includes an electrochemical cell comprising a cathode and an anode supported on a solid electrolyte. The solid electrolyte is a li-ion non-volatile electrolyte containing a dissolved metal salt. The cathode is constructed of a material with which lithium is known to form alloys. The anode is ...

A method for treating a liquid redox electrolyte solution for use in a flow battery includes feeding a liquid redox electrolyte solution into a first half-cell of an electrochemical cell and feeding a gaseous reductant into a second half-cell of the electrochemical cell, and electrochemically reducing at least a portion of the liquid redox electrolyte solution in the electrochemical cell ...

Electrochemical cells, such as those present within flow batteries, can have an electrode and a bipolar plate in at least one half-cell interfacially bonded together with an electrically conductive adhesive. Bonding the bipolar plate to the electrode can decrease contact resistance and sometimes lessen the incidence of parasitic reactions in the electrochemical cell. Flow batteries containing these features can include: ...

The invention generally relates to electrodes for selective vapor-phase electrochemical reactions in aqueous environments, and more particularly to a structured electrode having an electrocatalyst layer covered by a porous, hydrophobic polymer layer for control of liquid-phase and gas-phase reactions in aqueous environments. The porous, hydrophobic polymer layer supports an evolved gas bubble or plastron layer over the electrocatalyst layer to ...

The present disclosure relates to porous electrodes, membrane-electrode assemblies, electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The disclosure further provides methods of making porous electrodes, membrane-electrode assemblies and electrode assemblies. The porous electrodes include a porous electrode material comprising a polymer and an electrically conductive carbon particulate; and a solid film substrate having a first major ...

A secondary cell comprising a positive cathode electrode of capacity p (mah) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity n (mah) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that ...

A secondary cell comprising a positive cathode electrode of capacity p (mah) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity n (mah) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that ...

Battery modules for unmanned and human piloted electric aircraft comprise two planar substrates with electrochemical cells secured between to form load-bearing structural components from which aircraft with greater endurance can be constructed. The cells can be oriented perpendicular or parallel to the substrates, and in the latter case the substrates can include slots that the cells fit into. The cells ...

Systems and methods for improving an electric vehicle are disclosed. Systems and methods may include an housing enclosure for an electric vehicle battery module that is configured to include a coolant inlet and a coolant outlet. The housing enclosure may include an upper portion and a lower portion that are coupled together at a mating surface via a gasket. The ...

A co-doped carbon material, methods of making such materials, and electrochemical cells and devices comprising such materials are provided. The co-doped carbon material comprises a mesoporous carbon material doped with nitrogen and phoshporous (npmc). The present npmc exhibit catalytic activity for both oxygen reduction reaction and oxygen evolution reaction and may be useful as an electrode in an electrochemical cell ...

A method of manufacturing a non-prismatically shaped electrochemical cell. An elongate, substantially planar electrode strip is provided, having an anode on one of its major surfaces, a cathode on the other of its major surfaces, and a separator between the anode and the cathode, the strip tapering in its plane along the length of the strip. The electrode strip is ...

An environment control system utilizes oxygen and humidity control devices that are coupled with an enclosure to independently control the oxygen concentration and the humidity level within the enclosure. An oxygen depletion device may be an oxygen depletion electrolyzer cell that reacts with oxygen within the cell and produces water through electrochemical reactions. A desiccating device may be g, a ...

Battery modules for unmanned and human piloted electric aircraft comprise two planar substrates with electrochemical cells secured between to form load-bearing structural components from which aircraft with greater endurance can be constructed. The cells can be oriented perpendicular or parallel to the substrates, and in the latter case the substrates can include slots that the cells fit into. The cells ...

Polymers of intrinsic microporosity are provided herein. Disclosed polymers of intrinsic microporosity include modified polymers of intrinsic microporosity that include negatively charged sites or crosslinking between monomer units. Systems making use of polymers of intrinsic microporosity and modified polymers of intrinsic microporosity are also described, such as electrochemical cells and ion separation systems. Methods for making and using polymers of ...

The invention provides an electrolyte composition which is adapted for use in a rechargeable alkaline electrochemical cell, and especially preferably adapted for use in a rechargeable manganese zinc electrochemical cell, which electrolyte composition imparts improved performance characteristics to the rechargeable alkaline electrochemical cell. The electrolyte composition includes an electrolyte composition in which contains a potassium hydroxide and lithium hydroxide in ...

Described herein are various embodiments of binder and slurry compositions and methods of making a solid-state battery therefrom. An solid-state electro-chemical cell may include a first electrode substrate with a separator layer that is continuously interleaved in an alternating pattern with a second electrode substrate. A method of making a solid-state electro-chemical cell may include applying a separator layer to ...

The invention relates to an arrangement of electrochemical cells and also to the uses thereof. The electrochemical cells are arranged one above another and are in electrically conducting communication with one another. In this arrangement they form repeating units which in each case are formed of at least one interconnector, in which apertures for gas passage are formed, an electrochemical ...