Hitachi Chemical Company, Ltd.

Lg Energy Solution, Ltd.

Kenji Takaoka

Eisuke Haba

Nobuyuki Ogawa

Shunsuke Nagai

Hiroki Kuzuoka

Takuya Nishimura

Hiroki Mikuni

Hideyuki Ogawa

Yuma Gogyo

Katsunori Nishimura

Miyuki Muromachi

Provided is an electrolyte composition, comprising one or two or more polymers, oxide particles, at least one electrolyte salt selected from the group consisting of a lithium salt, a sodium salt, a calcium salt, and a magnesium salt, and a solvent, wherein structural units constituting the one or two or more polymers comprises a first structural unit selected from the group consisting of tetrafluoroethylene and vinylidene fluoride, and a second structural unit selected from the group consisting of hexafluoropropylene, acrylic acid, maleic acid, ethyl methacrylate, and methyl methacrylate, a content of the one or two or more polymers is more than 90% by mass based on a total amount of polymers in the electrolyte composition, and a mass ratio of a content of the first structural unit to a content of the second structural unit in the one or two or more polymers is 50/50 or more.

Electrolyte composition, secondary cell, and method for manufacturing electrolyte sheet

Provided are a positive electrode for a lithium ion secondary battery, the positive electrode including a positive electrode active material layer, the positive electrode active material layer including insulating polyolefin particles and an electroconductive material; an electrode for a lithium ion secondary battery, the electrode including an electrode active material layer, the electrode active material layer including polyolefin particles and a resin including a structural unit derived from a nitrile group-containing monomer; and a lithium ion secondary battery using the same.

Positive electrode for lithium ion secondary battery, electrode for lithium ion secondary battery, electrode active material layer including polyolefin particles, and lithium ion secondary battery

The present disclosure provides a binder resin composition comprising a polyolefin particle, an organic solvent and a polymer that is soluble in the organic solvent, as well as an electrode for a lithium ion secondary battery and a lithium ion secondary battery each using the binder resin composition.

Binder resin composition, electrode for lithium ion secondary battery and lithium ion secondary battery

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Tokyo, Japan

Kenji Takaoka