Murata Manufacturing Co., Ltd.

Sony Corporation

Hiroshi Takabayashi

Tetsuya Makino

Tomoyuki Nakamura

Kunihiko Hayashi

Akira Sasaki

Yosuke Konishi

Koji Shimotoku

Akira Saito

A non-aqueous electrolyte battery includes a battery device in which a positive electrode is faced to negative electrode through a separator; a non-aqueous electrolyte; a laminate film which is formed by laminating a metal layer, an outside resin layer formed in outer face of the metal layer, and an inside resin layer formed in the metal layer, and in which the battery device and the non-aqueous electrolyte is packaged by heat welding and housed; a positive electrode lead which is electrically connected to the positive electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; a negative electrode lead which is electrically connected to the negative electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; and a porous polymer layer containing, as a component, vinylidene fluoride formed between the laminate film and the battery device.

Non-aqueous electrolyte battery having porous polymer layer between laminate film and battery device

There is provided a secondary battery including a battery device that has a thickness of 3 to 20 mm, and a battery discharge capacity of 3 to 50 Ah, and an exterior material that packages the battery device. The battery device includes a positive electrode that has a positive electrode current collector and a positive electrode active material layer, a negative electrode that has a negative electrode current collector and a negative electrode active material layer, a separator that is interposed between the positive electrode and the negative electrode that are alternately laminated, a positive electrode tab that is electrically connected to a positive electrode current collector exposed portion and is led-out to the outside of the exterior material, and a negative electrode tab that is electrically connected to a negative electrode current collector exposed portion and is led-out to the outside of the exterior material.

Secondary battery for large current charge and discharge characteristic

A battery including cladding members in which a metal layer, an external resin layer, an inner resin are laminated; an electrode body which includes a positive electrode and a negative electrode; electrolyte which is accommodated in the cladding member; a positive electrode lead which is electrically connected to the positive electrode; and a negative electrode lead which is electrically connected to the negative electrode, the thickness of the heat sealed portions of both end portions of the positive electrode lead is formed larger than the thickness of the heat sealed portion on a center line in a width direction of the positive electrode lead, and the thickness of the heat sealed portions of both end portions of the negative electrode lead is formed larger than the thickness of the heat sealed portion on a center line in a width direction of the negative electrode lead.

Battery, method of manufacturing battery, battery pack, electronic device, electric vehicle, capacitive storage device, and power system

Growing community of inventors

Fukushima, Japan

Hiroshi Takabayashi