Abstract: A cubic boron nitride sintered material comprises cubic boron nitride particles and a bonding material, wherein the bonding material comprises at least one first metallic element selected from the group consisting of titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, rhenium, molybdenum, and tungsten; cobalt; and aluminum; the cubic boron nitride sintered material has a first interface region sandwiched between an interface between the cubic boron nitride particles and the bonding material, and a first virtual line passing through a point 10 nm apart from the interface to the bonding material side; and when an element that is present at the highest concentration among the first metallic elements in the first interface region is defined as a first element, an atomic concentration of the first element in the first interface region is higher than an atomic concentration of the first element in the bonding material excluding the first interface region.

Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound. The aminoanthraquinone polymer compound includes a divalent maleic anhydride part and a divalent aminoanthraquinone derivative part.

Abstract: A use, in an electrolyte for a battery, of an additive which includes at least one organocatalyst. Also, a method of preventing the contact between the anode and residual water in a battery and/or reducing the level of gas in a battery. Moreover, an electrolyte for a battery, including an additive which includes at least one organocatalyst. Moreover, a battery including an electrolyte which includes an additive which comprises at least one organocatalyst.

Abstract: Here are described polymers comprising monomeric units from vinylimidazole derivatives and their use in electrode materials and/or electrolyte compositions, as well as their methods of preparation. Also described are electrode materials, electrodes, and electrochemical cells comprising the polymers and their use.

Abstract: This application describes a process for the preparation of carbon-coated particles, where the particles comprise an electrochemically active material. The process comprises the steps of emulsion polymerization, drying and thermally treating the polymer to obtain a nano-layer of carbon on the particles, where the carbon layer comprises fibers and nitrogen-containing polyaromatics have a graphene-like structure. The application also further relates to the particles produced by the method as well as to electrode materials, electrodes and electrochemical cells comprising the particles.

Abstract: A use, in an electrolyte for a battery, of an additive which includes at least one organocatalyst. Also, a method of preventing the contact between the anode and residual water in a battery and/or reducing the level of gas in a battery. Moreover, an electrolyte for a battery, including an additive which includes at least one organocatalyst. Moreover, a battery including an electrolyte which includes an additive which comprises at least one organocatalyst.

Abstract: A lithium ion secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a cyclic compound and the cyclic compound includes one or more of a first cyclic compound, a second cyclic compound, and a third cyclic compound.

Abstract: This application describes electrode materials and methods of producing them, the materials containing particles having a core-shell structure, wherein the shell of the core-shell particles comprises a polymer, the polymer being grafted on the surface of the core particle by covalent bonds. Electrodes and electrochemical cells containing these electrode materials are also contemplated, as well as their use.

Abstract: There is provided a use, in an electrolyte for a battery, of an additive which comprises at least one organocatalyst. Also, there is provided a method of preventing the contact between the anode and residual water in a battery and/or reducing the level of gas in a battery. Moreover, there is provided electrolyte for a battery, comprising an additive which comprises at least one organocatalyst. Moreover, there is provided a battery comprising an electrolyte which comprises an additive which comprises at least one organocatalyst.

Abstract: This application describes an electrode material comprising particles of an electrochemically active material dispersed in a polymer binder, where the polymer binder is an acidic polymer or a mixture comprising a binder soluble in an aqueous solvent or a non-aqueous solvent (e.g. NMP) and an acidic polymer. The application also further relates to processes for the preparation of the electrode material and electrodes containing the material, as well as to the electrochemical cells and their use.

Abstract: Described are polymers comprising norbornene-based monomeric units derived from the polymerization of norbornene-based monomers for use as electrode material additives, binder compositions comprising said polymers as additives, electrode materials comprising said polymers as additives, electrode materials comprising said binder compositions, their methods of production and their use in electrochemical cells, for instance, in lithium or lithium ion batteries.

Abstract: Described are polymers, polymer binders, hydrogel polymer binders, hydrogel polymer binder compositions comprising them, electrode materials comprising them, their methods of production and their use in electrochemical cells, for instance, in silicon-based electrochemical cells.

Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound. The aminoanthraquinone polymer compound includes a divalent maleic anhydride part and a divalent aminoanthraquinone derivative part.

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes primary particles that each include a lithium-manganese phosphate compound and have an average particle diameter of less than or equal to 100 nm. The negative electrode has an electrochemical capacity per unit area of less than or equal to an electrochemical capacity per unit area of the positive electrode.

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is provided on the positive electrode current collector and includes an electrically conductive substance. The electrically conductive substance includes electrically conductive supports and electrically conductive particles. The electrically conductive supports each include a carbon material. The electrically conductive particles are supported by the electrically conductive supports. The electrically conductive particles are primary particles that each include a lithium phosphate compound and have an average particle size of less than 35 nanometers.

Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material having a reaction potential of 0.5 V or higher than a lithium electrode, and has an electrochemical capacity per unit area of less than or equal to an electrochemical capacity per unit area of the positive electrode. The electrolytic solution includes a solvent, an electrolyte salt, and at least one of a diphenyl carbonate compound, an unsaturated cyclic carbonate ester, a first maleic anhydride compound, and a second maleic anhydride compound.

Abstract: Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.

Abstract: Here are described polymers comprising monomeric units from vinylimidazole derivatives and their use in electrode materials and/or electrolyte compositions, as well as their methods of preparation. Also described are electrode materials, electrodes, and electrochemical cells comprising the polymers and their use.

Abstract: Squaric acid-based polymers and their use in electrode materials and/or electrolyte compositions, as well as their production processes are described herein. Also described are electrode materials, electrodes, electrolyte compositions, electrochemical cells, electrochemical accumulators, and optoelectronic devices comprising the polymers and their uses.

Abstract: A lithium ion secondary battery includes an electrolytic solution together with a positive electrode and a negative electrode. At least one of the positive electrode and the negative electrode includes a plurality of active material particles and a coating film that covers an entire surface of at least one of the plurality of active material particles. The coating film includes at least one of a first pyrrole compound, a second pyrrole compound and a third pyrrole compound.