Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Other

Jsr Corporation

Kazuya Iwamoto

Atsushi Ueda

Shigeo Kondo

Hizuru Koshina

Kazunori Takada

Takafumi Oura

Shuji Ito

Shinji Nakanishi

Hiroshi Yoshizawa

Taisuke Yamamoto

Shoichiro Watanabe

Jun Nunome

Makoto Fujino

Kumiko Sonoda

Kazuyoshi Honda

Harunari Shimamura

Masaya Ugaji

Hideharu Takezawa

Hiromu Matsuda

Tomohiko Yokoyama

Yasumasa Takeuchi

Yoshiaki Nitta

Yasutaka Kogetsu

Masaki Deguchi

Shinji Mino

Hiroshi Higuchi

Naoshi Yasuda

Fusazumi Masaka

Noboru Aotani

Mikinari Shimada

Masatoshi Nagayama

Sadayuki Okazaki

Keisuke Ohara

Hitoshi Sakai

Yasuhiro Ueyama

Takaharu Morikawa

Yasuyuki Shibano

Kenichi Morigaki

Hiroyuki Murai

Yusuke Ito

Yoriko Takai

Tatsuki Hiraoka

Kiyomi Kato

Hitoshi Kimura

Kunihiko Mineya

Junichi Inaba

Hiroshi Nishiyama

Hitoshi Katayama

Makino Hatazaki

Yukishige Inaba

Toshikatsu Uematsu

Kazutomi Yamamoto

Nobuhiko Ikeda

A battery including: a first electrode layer; a solid electrolyte layer disposed above the first electrode layer; a second electrode layer disposed above the solid electrolyte layer; and an electrode. The first electrode layer includes: a first current collector; and a first mixture layer disposed between the first current collector and the solid electrolyte layer. The first current collector includes a terminal portion protruding from the second electrode layer in top view, the solid electrolyte layer is exposed in at least a region of the terminal portion in the top view, the solid electrolyte layer covers part of a side surface of the first mixture layer in cross-sectional view and is in contact with the terminal portion of the first current collector, and the electrode is in contact with the solid electrolyte layer in an inside of at least a region of the terminal portion in top view.

Battery

A battery including: a positive electrode; a negative electrode; a first solid electrolyte layer that is positioned between the positive electrode and the negative electrode and that contains a metal alloyable with lithium; and a second solid electrolyte layer that is positioned between the negative electrode and the first solid electrolyte layer and that is free of the metal.

A battery includes at least one cell, a case that houses the at least one cell, at least one first charge/discharge terminal that is electrically connected to the at least one cell, and at least one first monitor terminal that is electrically connected to the at least one cell. The at least one first charge/discharge terminal has a protrusion that partially protrudes from a surface of the case. The at least one first monitor terminal has a recess that is partially recessed from the surface of the case.

Battery and battery system

A battery including a positive electrode layer and a negative electrode layer is provided. The positive electrode layer includes a positive electrode current collector, a positive electrode active material layer, and a positive electrode-side solid electrolyte layer; the positive electrode active material layer is arranged in contact with the positive electrode current collector in a region smaller than that thereof; the positive electrode-side solid electrolyte layer is arranged in contact with the positive electrode current collector and the positive electrode active material layer in the same region as that of the positive electrode current collector; the negative electrode layer has the structure similar to that of the positive electrode layer. Since the positive and negative electrode layers are laminated to each other, the positive electrode active material layer faces the negative electrode active material layer with the positive and negative electrode-side solid electrolyte layers provided therebetween.

Battery and battery manufacturing method

A battery includes a first electrode layer; and a second electrode layer disposed on the first electrode layer and serving as a counter electrode for the first electrode layer, wherein the first electrode layer includes a first current collector, a first active material layer, and a first solid electrolyte layer, the first active material layer is disposed to be in contact with the first current collector and to occupy a smaller area than the first current collector, the first solid electrolyte layer is disposed to be in contact with the first current collector and the first active material layer and to occupy the same area as the first current collector, the first active material layer faces the second electrode layer with the first solid electrolyte layer therebetween, and the first electrode layer includes a peripheral portion including a first rounded portion.

A battery includes an outer packaging and a power generating element that contains a sulfur-based material and is included in the outer packaging and disposed in the inside of the outer packaging. The outer packaging includes a communicating port, a hydrogen sulfide eliminator, and an exhausting unit. The communicating port communicates between the inside and the outside of the outer packaging. The hydrogen sulfide eliminator and the exhausting unit are disposed in the communicating port. The exhausting unit introduces hydrogen sulfide generated caused by the sulfur-based material to the communicating port. The hydrogen sulfide eliminator eliminates the hydrogen sulfide introduced by the exhausting unit to the communicating port.

A battery housing includes: an exterior member; and a first terminal of a non-metallic material, wherein the first terminal has a first end extending to outside of the exterior member, the first terminal has a second end extending to inside of the exterior member, the first terminal includes a first long-diameter part having a first long diameter and a second long-diameter part having a second long diameter larger than the first long diameter, the first long-diameter part and the second long-diameter part being disposed between the first end of the first terminal and the second end of the first terminal, and the first long-diameter part and the second long-diameter part are embedded in the exterior member.

Battery housing and power storage device having a non-metallic terminal

An all-solid-state thin-film battery according to an aspect of the present disclosure includes: a solid electrolyte layer; a cathode active material layer; a cathode current collector layer including a first portion and a second portion; an anode terminal layer; and an anode layer including a third portion and a fourth portion. The first contact surface between the solid electrolyte layer and the cathode active material layer, the second contact surface between the solid electrolyte layer and the first portion of the cathode current collector layer, and the third contact surface between the third portion of the anode layer and the anode terminal layer are located within a single plane.

All-solid-state thin-film battery

A negative electrode for a lithium ion batteryincludes a negative electrode current collector, a negative electrode active material layer, and a lithium silicate layer. The negative electrode active material layercontains silicon. The lithium silicate layercontains lithium, oxygen, and silicon forming a Li&#x2014;O&#x2014;Si bond, and is formed at the interface between the negative electrode current collectorand the negative electrode active material layer. The negative electrode active material layerand the lithium silicate layermay be composed of columnar bodies.

Negative electrode for lithium ion battery and method for producing the same, and lithium ion battery

The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.

Electrode, and current collector used therefor

A battery pack is provided, which includes a secondary battery; a molded body configured to store therein the secondary battery; and a foamable layer provided between the secondary battery and an inner surface of the molded body and configured to foam at a predetermined temperature or higher to form a foam heat insulating layer. With this, a heat insulating layer contained in the battery pack is thin in a normal state where the battery is not generating heat, and the heat insulating layer exerts a high heat insulating effect at the time of malfunction to suppress the temperature increase of a surface of the battery pack.

Insulatable battery pack for secondary battery

The negative electrode for a lithium secondary battery includes: a current collectorhaving a plurality of bumpson a surface thereof; a first active material layer formed on the current collector; and a second active material layerdisposed on the first active material layerand including a plurality of active material particles. Each of the plurality of active material particlesis located on a corresponding bumpof the current collector, and each of the first active material layerand the plurality of active material particleshas a chemical composition represented as SiO(0&#x3c;x&#x3c;1).

Negative electrode contacting silicon oxide active material layers for lithium secondary battery and method for producing the same

Provided is a highly safe portable electronic device having a secondary battery as a power source, and including a housing, an electronic device body housed in the housing, and a battery housing portion housed in the housing, in which a surface is inhibited from being locally heated to high temperature. In the portable electronic device, the battery housing portion is a molding with a battery fitting portion for fitting the secondary battery therein, and the battery fitting portion has provided on its surface a heat-insulating layer having a thickness of from 500 to 3000 &#x3bc;m and a thermal conductivity of 0.2 W/m&#xb7;K or lower.

Portable electronic device

Growing community of inventors

Osaka, Japan

Kazuya Iwamoto