Functional Rhythmicity of Gut Microbial Enzyme Is Influenced by Feeding Patterns
This study profiled the 24-hour rhythmicity in bile salt hydrolase enzyme activity using simple fluorescence assay and the results showed that this rhythmicity is influenced by feeding patterns of the host.
COST EFFECTIVE SYNTHESIS OF OXIDE MATERIALS FOR LITHIUM ION BATTERIES (iEdison No. 0685901-21-0108)
The invention discloses a cost-saving method to synthesize lithium nickel manganese cobalt (NMC) cathode materials for lithium-ion batteries (LIBs) especially Ni-rich single crystals. Lithium oxide (Li2O) salt is used as Li source in this method instead of LiOH-based salts (LiOH and LiOH·H2O) which has been used in existing NMC production. Compared to conventional LiOH-based salts route, the use of Li2O enables the same electrochemical performance of the final products while significantly reducing the number of processing steps and lowering the overall production cost and equipment attrition.
COST EFFECTIVE SYNTHESIS OF OXIDE MATERIALS FOR LITHIUM ION BATTERIES (iEdison No. 0685901-21-0108)
The invention discloses a cost-saving method to synthesize lithium nickel manganese cobalt (NMC) cathode materials for lithium-ion batteries (LIBs) especially Ni-rich single crystals. Lithium oxide (Li2O) salt is used as Li source in this method instead of LiOH-based salts (LiOH and LiOH·H2O) which has been used in existing NMC production. Compared to conventional LiOH-based salts route, the use of Li2O enables the same electrochemical performance of the final products while significantly reducing the number of processing steps and lowering the overall production cost and equipment attrition.
ELECTROLYTE FOR STABLE CYCLING OF RECHARGEABLE ALKALI METAL AND ALKALI ION BATTERIES (incorporates 31452-E) (iEdison No. 0685901-18-0024)
This invention is related to novel electrolytes that are stable with alkali metal anode, graphite anode, silicon anode and various cathode materials in an electrochemical cell. Fluorinated orthoformate electrolytes are electrolyte containing fluorinated orthoformate compounds. In an electrolyte, fluorinated orthoformates has no or very poor solubility with lithium salts, but it can works as diluent with the most known electrolyte solvents (such as carbonates, ethers, phosphates or solvent mixtures, which has a high solvability for lithium salts) to form a localized high concentration electrolyte (LHCE) (which is also called localized superconcentrated electrolyte (LSE)) for lithium metal or lithium ion batteries. These fluorinated orthoformate containing electrolytes are stable with anode (such as lithium, sodium, other alkali metal, graphite, silicon and silicon/graphite anodes), cathode (including both ion intercalation and conversion compounds) and current collectors (such as Cu and Al). They are not only stable with anode by forming a high quality solid electrolyte interphase (SEI) layers, but also stable with high voltage cathodes, thereby improving long-term cycling stability of electrochemical cells. Furthermore, addition of fluorinated orthoformate solvent effectively decreases the electrolyte viscosity and improves the ionic conductivity and wetting ability of the electrolyte. This invention could be widely applied to a variety of electrochemical systems, including lithium (Li) metal batteries, Li ion batteries, Li-S batteries, Li-O2 batteries, sodium metal and sodium ion batteries, magnesium ion batteries, super capacitors, and sensors.
ELECTROLYTE FOR STABLE CYCLING OF RECHARGEABLE ALKALI METAL AND ALKALI ION BATTERIES (incorporates 31452-E) (iEdison No. 0685901-18-0024)
This invention is related to novel electrolytes that are stable with alkali metal anode, graphite anode, silicon anode and various cathode materials in an electrochemical cell. Fluorinated orthoformate electrolytes are electrolyte containing fluorinated orthoformate compounds. In an electrolyte, fluorinated orthoformates has no or very poor solubility with lithium salts, but it can works as diluent with the most known electrolyte solvents (such as carbonates, ethers, phosphates or solvent mixtures, which has a high solvability for lithium salts) to form a localized high concentration electrolyte (LHCE) (which is also called localized superconcentrated electrolyte (LSE)) for lithium metal or lithium ion batteries. These fluorinated orthoformate containing electrolytes are stable with anode (such as lithium, sodium, other alkali metal, graphite, silicon and silicon/graphite anodes), cathode (including both ion intercalation and conversion compounds) and current collectors (such as Cu and Al). They are not only stable with anode by forming a high quality solid electrolyte interphase (SEI) layers, but also stable with high voltage cathodes, thereby improving long-term cycling stability of electrochemical cells. Furthermore, addition of fluorinated orthoformate solvent effectively decreases the electrolyte viscosity and improves the ionic conductivity and wetting ability of the electrolyte. This invention could be widely applied to a variety of electrochemical systems, including lithium (Li) metal batteries, Li ion batteries, Li-S batteries, Li-O2 batteries, sodium metal and sodium ion batteries, magnesium ion batteries, super capacitors, and sensors.
Diffusion Barriers in Modified Air Brazes
In bonding an electroactive ceramic to structural metal for electrochemical device application, joining must typically be carried out in an oxidizing environment, nominally at a temperature greater than the device operating temperature (~800°C). Thus, the bond that eventually forms will take place between the functional ceramic component and an oxide scale that grows on the structural metallic component under these conditions. The objective in reactive air brazing (RAB) is to reactively modify one or both oxide faying surfaces with a compound that has been at least partially dissolved in a noble metal solvent, e.g. silver, gold, or platinum, such that the newly formed surface is readily wetted by the remaining molten filler material.
Shining a Light Source on Batteries
A research effort under the PNNL-led Battery500 Consortium solved a longtime debate surrounding a structure in lithium-metal battery anodes.
The Layered Look of Lithium Sulfur
Detailed view of a troubling layer offers insights for a better battery.
Reactor, CO2 sorbent system, and process of making H2 with simultaneous CO2 sorption
A reactor and process for production of hydrogen gas from a carbon-containing fuel in a reaction that generates carbon dioxide is described. The carbon-containing fuel can be, for example, carbon monoxide, alcohols, oxygenates bio-oil, oil and hydrocarbons. In preferred embodiments, the reactor includes a monolithic structure form with an array of parallel flow channels. Methods of using the reactor are also described. In the reactor apparatus of the present invention, the catalytic reaction for hydrogen formation is conducted in conjunction with a carbonation reaction that removes carbon dioxide that is produced by the reactor. The carbonation reaction involves reaction of the carbon dioxide produced from the hydrogen formation reaction with metal oxide-based sorbents. The reactor apparatus can be periodically regenerated by regeneration of the sorbent. A carbon dioxide sorbent system comprising a solid sorbent and a eutectic, mixed alkali metal molten phase is also described.