Abstract: According to a storage battery of an embodiment includes a first battery module and a second battery module connected in parallel with the first battery module. The number of first cells connected in series in the first battery module is M, and the number of second cells connected in series in the second battery module is N. When an open circuit voltage at SOC=X % of the first cells and the second cells are Va1 (X) and Va2 (X), respectively, the voltages of the battery modules are M×Va1 (X)<N×Va2 (X) in the range where the SOC of the cell is 0% to 30%, and M×Va1 (X)>N×Va2 (X) in the range where the SOC of the cell is 70% to 100%.

Abstract: According to one embodiment, a method of producing a secondary battery is provided. The method includes preparing a battery architecture including a positive electrode, a negative electrode, and an electrolyte; adjusting a positive electrode potential to a range of 3.4 V to 3.9 V and a negative electrode potential to a range of 1.5 V to 2.0 V based on an oxidation-reduction potential of lithium, thereby providing a potential adjusted state; and holding the battery architecture in the potential adjusted state at a holding temperature of 50° C. to 90° C. The positive electrode includes a lithium-nickel-cobalt-manganese composite oxide. The negative electrode includes a niobium-titanium composite oxide. The electrolyte includes one or more first organic solvent having a viscosity of 1 cP or less.

Abstract: A two-component curable coating agent capable of forming a surface protective layer having excellent weather resistance, acid resistance, fouling resistance, and elongation properties, and a multilayer film including a surface protective layer that is a cured film of the two-component curable coating agent. The two-component curable coating agent includes a main agent that contains a polyol containing an epoxy polyol (P) and an acrylic polyol (A), and a curing agent that contains a polyisocyanate, the epoxy polyol (P) being a reaction product of an epoxy group-containing compound (e) and a carboxyl group-containing compound (c). Furthermore, the multilayer film includes a substrate layer; a surface protective layer that is layered on and integrated with a first surface of the substrate layer and that is a cured film of the two-component curable coating agent; and an adhesive layer that is layered on and integrated with a second surface of the substrate layer.

Abstract: Provided are a two-component curable coating agent capable of forming a surface protective layer having excellent weather resistance, acid resistance, fouling resistance, and elongation properties, and a multilayer film including a surface protective layer that is a cured film of the two-component curable coating agent. The two-component curable coating agent of the present invention includes: a main agent that contains a polyol containing an acrylic polyol having an alicyclic structure and a hydroxyl value of 36 mgKOH/g or more and 125 mgKOH/g or less, and an alkyl polyol; and a curing agent that contains a polyisocyanate. The multilayer film of the present invention includes: a substrate layer; and a surface protective layer that is integrally layered on a first surface of the substrate layer and is a cured film of the two-component curable coating agent.

Abstract: An object is to establish a technique for producing a resin composite material at low cost. A resin composition contains cellulose fibers, a fibrillation aid, and a resin.

Abstract: Provided herein is a cellulose nanofiber-containing composition producing method for producing a cellulose nanofiber-containing composition that can be easily combined with compounds having a reactive double-bond group, and that contains only a small amount of uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength molded body prepared by using the cellulose nanofiber-containing composition is also provided. In refining cellulose in a mixture containing a compound having a reactive double-bond group and a hydroxyl group of 10 KOHmg/g or less and a defibrating resin as essential components, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.

Abstract: Provided herein is a cellulose nanofiber that can be easily combined with a compound having a reactive double-bond group and that can provide a molded article which contains only a small amount of an uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength resin composition or molded body prepared by using the cellulose nanofiber is also provided. In refining cellulose in the presence of a compound having a reactive double bond and a hydroxyl value of 200 KOHmg/g or more, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.

Abstract: The present invention provides a method for producing cellulose nanofibers, the method including fibrillating cellulose in a modified epoxy resin (A) having a hydroxyl value of 100 mgKOH/g or more. Also, the present invention provides cellulose nanofibers produced by the production method and a master batch containing the cellulose nanofibers and the modified epoxy resin (A). Further, present invention provides a resin composition containing the master batch and a curing agent (D), and provides a molded product produced by molding the resin composition.

Abstract: The present invention provides a fiber-reinforced resin composite as a fiber-reinforced resin composite (E) including a fiber-reinforced resin (C), which contains a reinforcing fiber (A) and a matrix resin (B), and a reinforcing material (D), in which the reinforcing material (D) contains a cellulose nanofiber (F), and the cellulose nanofiber (F) is obtained by micronizing cellulose in a fibrillated resin (G), and provides a reinforced matrix resin for the fiber-reinforced resin. The present invention also provides a fiber-reinforced resin composite in which the cellulose nanofiber (F) is a modified cellulose nanofiber (F1) that is obtained by micronizing cellulose in the fibrillated resin (G) and then reacting the cellulose with a cyclic polybasic acid anhydride (J).

Abstract: A metal fine particle dispersant is obtained by reaction of a polymer (a) containing a first reactive functional group, an ionic group to be absorbed to metal fine particles, and a polyoxyalkylene side chain with a compound (b) containing a second reactive functional group to be bonded to the first reactive functional group and an active energy ray curable group to be cured by an active energy ray. A metal fine particle dispersion liquid containing the metal fine particle dispersant, metal fine particles, and a dispersion medium is prepared. The metal fine particle dispersion liquid is cured, thereby obtaining a cured film.

Abstract: Provided herein is a cellulose nanofiber that can be easily combined with a compound having a reactive double-bond group and that can provide a molded article which contains only a small amount of an uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength resin composition or molded body prepared by using the cellulose nanofiber is also provided. In refining cellulose in the presence of a compound having a reactive double bond and a hydroxyl value of 200 KOHmg/g or more, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.

Abstract: Provided herein is a cellulose nanofiber-containing composition producing method for producing a cellulose nanofiber-containing composition that can be easily combined with compounds having a reactive double-bond group, and that contains only a small amount of uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength molded body prepared by using the cellulose nanofiber-containing composition is also provided. In refining cellulose in a mixture containing a compound having a reactive double-bond group and a hydroxyl group of 10 KOHmg/g or less and a defibrating resin as essential components, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.

Abstract: A metal fine particle dispersant is obtained by reaction of a polymer (a) containing a first reactive functional group, an ionic group to be absorbed to metal fine particles, and a polyoxyalkylene side chain with a compound (b) containing a second reactive functional group to be bonded to the first reactive functional group and an active energy ray curable group to be cured by an active energy ray. A metal fine particle dispersion liquid containing the metal fine particle dispersant, metal fine particles, and a dispersion medium is prepared. The metal fine particle dispersion liquid is cured, thereby obtaining a cured film.

Abstract: The present invention relates to modified cellulose nanofibers obtained by neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives. Moreover, the present invention relates to a resin composition containing the aforementioned modified cellulose nanofibers and a molding resin, and to a molded body obtained by molding the resin composition. Furthermore, the present invention relates to a production method of modified cellulose nanofibers comprising neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives.

Abstract: Provided are a modified-cellulose-nanofiber containing polyethylene fine porous film containing modified cellulose nanofibers having alkyl or alkenyl groups with 4 to 30 carbon atoms and a modified-cellulose-nanofiber containing polyethylene fine porous film containing modified cellulose nanofibers prepared by fibrillating cellulose into cellulose nanofibers in a nonaqueous resin and modifying the cellulose nanofibers. Also provided are a separator made of such a fine porous film and a lithium-ion battery including such a separator.

Abstract: Provided is a method for producing modified cellulose nanofibers, the method including the steps of fibrillating cellulose in a fibrillation resin to produce cellulose nanofibers and reacting hydroxyl groups of the cellulose nanofibers with a cyclic polybasic acid anhydride (B) in the fibrillation resin to produce modified cellulose nanofibers. Also provided are modified cellulose nanofibers produced by the production method, a resin composition including the modified cellulose nanofibers, and a molded body formed of the resin composition.

Abstract: The present invention provides a method for producing cellulose nanofibers, the method including fibrillating cellulose in a modified epoxy resin (A) having a hydroxyl value of 100 mgKOH/g or more. Also, the present invention provides cellulose nanofibers produced by the production method and a master batch containing the cellulose nanofibers and the modified epoxy resin (A). Further, present invention provides a resin composition containing the master batch and a curing agent (D), and provides a molded product produced by molding the resin composition.

Abstract: The present invention provides a fiber-reinforced resin composite as a fiber-reinforced resin composite (E) including a fiber-reinforced resin (C), which contains a reinforcing fiber (A) and a matrix resin (B), and a reinforcing material (D), in which the reinforcing material (D) contains a cellulose nanofiber (F), and the cellulose nanofiber (F) is obtained by micronizing cellulose in a fibrillated resin (G), and provides a reinforced matrix resin for the fiber-reinforced resin. The present invention also provides a fiber-reinforced resin composite in which the cellulose nanofiber (F) is a modified cellulose nanofiber (F1) that is obtained by micronizing cellulose in the fibrillated resin (G) and then reacting the cellulose with a cyclic polybasic acid anhydride (J).

Abstract: The present invention provides a method for manufacturing a cellulose nanofiber, characterized by comprising the step of fibrillating cellulose in a polyester based resin, preferably in a polyester based resin having an ester group concentration of 6.0 mmol/g or more and a cellulose nanofiber produced by the manufacturing method concerned. In addition, the present invention provides a masterbatch composition containing the cellulose nanofibers and the polyester based resin. Furthermore, the present invention provides a resin composition containing the masterbatch composition and a diluent resin and a processed product thereof.

Abstract: The present invention relates to modified cellulose nanofibers obtained by neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives. Moreover, the present invention relates to a resin composition containing the aforementioned modified cellulose nanofibers and a molding resin, and to a molded body obtained by molding the resin composition. Furthermore, the present invention relates to a production method of modified cellulose nanofibers comprising neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives.