Nissan Motor Company Limited

Sanyo Chemical Industries, Ltd.

Masatoshi Okura

Hideaki Horie

Yasuhiko Ohsawa

Hiroshi Akama

Hajime Satou

Yusuke Mizuno

Yasuhiro Shindo

Yasuhiro Tsudo

Hiroshi Fukumoto

Yuki Kusachi

Kazuki Arihara

Naofumi Shoji

Masanori Koike

Takamasa Nakagawa

Yuuki Kusachi

A laminate type battery includes a power generating element and an outer casing body. The power generating element is formed by electrically laminating in series a plurality of single battery layers in which a single battery layer is formed by sequentially laminating a positive electrode current collector, a positive electrode active material layer, an electrolyte layer, a negative electrode active material layer, and a negative electrode current collector. The power generating element is disposed inside the outer casing body. At least one of the positive electrode current collector or the negative electrode current collector includes a resin layer having conductivity. The single battery layer including the resin layer is electrically connected to an adjacent single battery layer via at least one resistance reduction layer.

Laminate type battery and method for producing the same

The present invention provides an electrode capable of reducing contact resistance between a resin current collector and the electrode, and a method of manufacturing the electrode. The electrode of the present invention includes a positive electrode current collectorcontaining a polymer material and a conductive filler, a positive electrode active material layerdisposed adjacent to the positive electrode current collector, and a concavoconvex shapecorresponding to a concavoconvex shapeformed on a surface of the positive electrode active material layer that is in contact with the positive electrode current collector, the concavoconvex shape being formed on a surface of the positive electrode current collector that is in contact with the positive electrode active material layer. In the concavoconvex shape in the positive electrode current collector, at least a part of the positive electrode conductive memberthat is in electrical contact with the conductive filler exists in the positive electrode current collector beyond the surface of the positive electrode current collector.

Electrode and method of manufacturing electrode

To provide an electrode for a lithium ion secondary battery capable of enhancing a charge and discharge cycle durability of an electrode that uses a resin current collector. An electrode for a lithium ion secondary battery provided with a resin current collector including a polyolefin resin matrix and a conductive filler A, and an electrode active material layer provided on the resin current collector, in which a crosslinked resin thin-film layer, which contains an Ni filler as a conductive filler B that does not alloy with Li and which has impermeability to the electrolyte solution, is arranged between the resin current collector and a negative electrode active material layer.

Electrode for lithium ion secondary battery and production method therefor

An electrode for improving the durability of a battery includes a current collector and an active material layer. The current collector has a conductive resin layer including a polymer material and a conductive filler. The electrode further includes a conductive member, which is in electrical contact with the conductive filler, between the current collector and the active material layer.

Electrode

An electrode for a cell includes a resin current collector that is planate and contains a resin and an electrically conductive filler, and an electrode active material layer that is disposed on at least one surface side of the resin current collector and that contains electrode active material particles. The resin current collector includes an electrically conductive layer on its surface side facing the electrode active material layer, the electrically conductive layer having configuration with recesses and projections. This configuration with recesses and projections satisfies the relationship given by formula (1): h/tan &#x3b8;&#x3c;D, in which h is the average height of the configuration with recesses and projections, &#x3b8; is the average inclination angle of the configuration with recesses and projections, and D is the average particle diameter of the electrode active material particles. A cell includes the electrode for a cell described above.

Electrode for cell, and cell

The present invention provides a means for improving the output performance of a battery. An electrical connection structure of the present invention includes a current collector which includes a conductive resin layer containing a polymer material and a conductive filler and a conductive member which is in electrical contact with the conductive filler.

Electrical connection structure

To provide a means for improving durability of a positive electrode for a lithium battery (in particular, a resin current collector for forming the positive electrode). The means is achieved by a positive electrode for a lithium battery having a resin current collector containing a polyolefin-based resin matrix and a conductive filler, and a positive electrode active material layer provided on the resin current collector, characterized in that an electron conductive layer is disposed on the surface of the resin current collector that is in contact with the positive electrode active material layer.

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Kyoto, Japan

Masatoshi Okura