Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Holdings Corporation

Takao Kuromiya

Tsumoru Ohata

Kohei Suzuki

Toshifumi Nagino

Masao Fukunaga

Masashi Hamabe

Yasuhiro Ueyama

Kazunori Kubota

Masateru Mikami

Kenta Hasegawa

Masayoshi Imanishi

Shouma Nishino

Takashi Tsuruta

Kenji Date

Yoshinori Shishida

Isao Fujiwara

An all-solid-state battery includes a positive-electrode current collector, a positive electrode layer, a negative-electrode current collector, a negative electrode layer, and a solid electrolyte layer. The positive electrode layer is formed on the positive-electrode current collector and includes a positive-electrode material mixture layer which includes at least a positive-electrode active material and a binder. The negative electrode layer is formed on the negative-electrode current collector and includes a negative-electrode material mixture layer which includes at least a negative-electrode active material and a binder. The solid electrolyte layer is disposed between the positive-electrode material mixture layer and the negative-electrode material mixture layer, and includes at least a solid electrolyte having ion conductivity.

All-solid-state battery with varied binder concentration

Provided is a stacked all-solid-state battery including a plurality of all-solid-state batteries, each all-solid-state battery including a cathode layer that has a cathode current collector and a cathode active material layer containing a cathode active material and formed on the cathode current collector, an anode layer that has an anode current collector and an anode active material layer containing an anode active material and formed on the anode current collector, and a solid electrolyte layer disposed between the cathode active material layer and the anode active material layer and containing a solid electrolyte having a lithium ion conductivity. The plurality of all-solid-state batteries are stacked, and the plurality of all-solid-state batteries include two adjacent all-solid-state batteries, the two all-solid-state batteries being configured such that the cathode current collector of one all-solid-state battery is directly joined to the anode current collector of the other all-solid-state battery.

Stacked all-solid-state battery and method of manufacturing the same

A composite resin molded body includes a base compound resin and a molten-kneaded mixture which contains an organic fibrous filler, and a dispersing agent. In the composite resin molded body, a content of the organic fibrous filler is at least 5 mass % and at most 70 mass %, and a proportion T of the organic fibrous filler carbonized in the composite resin molded body is equal to or less than 0.1.

Composite resin molded body, manufacturing method thereof, and casing member using same

A composite resin molded article including: a base resin; and a fibrous filler, wherein the fibrous filler is bent between one end side thereof and another end side thereof, and wherein the angle of the bending is 90 degrees or larger.

Composite resin molded article

A separator includes a separation functional layer and a support layer. The separation functional layer is configured as a denser layer with a smaller pore size and a lower porosity than the support layer. Accordingly, movement of metal foreign objects from the positive electrode plate side to the negative electrode plate side, and precipitation of metal foreign objects on the negative electrode plate side can be inhibited, thereby making it possible to ensure battery performance and safety.

Lithium-ion battery

When a coating material is rolled between rolls to generate a a coating film, and the coating film is transferred onto the coating object, at first, a residual coating material layer based on a residual coating material is formed on each of the surfaces of the rolls, and supply of the coating material and transfer of the coating film are carried out in a state where the residual coating material layer is retained on each of the surfaces of the rolls, thereby suppressing abrasions between the rolls and the coating material.

Coating film production method, coating film production apparatus, coating film, nonaqueous secondary battery electrode plate, and mobile body

The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different.

Separator for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery utilizing same, and manufacturing methods of same

A high-quality coating film with a uniform thickness is produced without crush of coating particles even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity. By providing a surface layer with an optimized hardness on the surface of a roll used for supply of a mixture coating material, a high-quality coating film with a uniform thickness can be produced, even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity.

Coating film production apparatus and coating film production method using the same

A manufacturing apparatus of a coating film product rolls a mixture coating material by a first roll and transfers the mixture coating material to a coated object in motion to thereby manufacture the coating film product. An arithmetic average roughness Ra on a roll surface of the first roll is higher than a value 0.05 times of a particle size 'd10' in which an integrated distribution of particle sizes of particles included in the mixture coating material is 10% and lower than a value 20 times a particle size 'd90' in which an integrated distribution is 90%.

Growing community of inventors

Osaka, Japan

Takao Kuromiya