Panasonic Corporation

Sanyo Electric Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Hiroaki Ichinose

Masatoshi Nagayama

Tatsuya Hashimoto

Shingo Tsuda

Hideaki Yoshio

Masatomo Nagatani

Masaaki Kaneda

Yoshitaka Matsumasa

Hitoshi Suzuki

A holder for conveyance of a cylindrical body includes a tubular portion having a hollow portion in which a cylindrical body is housed, and a protrusion having a base end connected to an inner wall surface of the tubular portion and a distal end formed as a free end. The protrusion has elasticity and flexibility, and the protrusion is disposed on an inner diameter side of an outer circumferential surface of the cylindrical body at an expected housing position such that a side surface of the distal end of the protrusion is allowed to come into contact with the outer circumferential surface while the protrusion is warped to an outer diameter side of the hollow portion.

Holder for conveyance of cylindrical body

A non-aqueous electrolyte secondary battery including an electrode assembly, a non-aqueous electrolyte, and a substantially rectangular battery case for housing the electrode assembly and the non-aqueous electrolyte. The thickness &#x3b1;, the width &#x3b2;, and the height &#x3b3; of the battery case satisfy the relation &#x3b1;&#x3c;&#x3b2;&#x2266;&#x3b3;c. The electrode assembly includes a positive electrode, a negative electrode, and a porous heat-resistant layer disposed between these electrodes. The positive electrode includes a positive electrode active material layer, and the negative electrode includes a negative electrode active material layer. The ratio of the pore volume included in a predetermined area of the porous heat-resistant layer to the battery theoretical capacity is 0.18 to 1.117 ml/Ah. The predetermined area has the same area as the positive electrode active material layer. The porosity of the porous heat-resistant layer is 35 to 85%.

Non-aqueous electrolyte secondary battery and battery module

A prismatic battery with highly reliable sealing properties and its manufacturing method, wherein a negative collector is welded to one end of an electrode plate group accommodated in a prismatic case, the collector being connected to an electrode pole that functions as the negative electrode terminal, and the electrode pole is fitted into a support cylinder that is provided on an upper lid for closing one open end of the case. An insulating gasket is interposed between an inner periphery of the support cylinder and an outer periphery of the electrode pole, the support cylinder being formed with at least one annular crimped portion that has an arc-shaped longitudinal cross section.

Prismatic battery and manufacturing method thereof

Battery with a flexible laminate casing includes a means for fixing the electrode assembly ( ) within the casing ( ). The fixing means may be a frame ( ) attached to the periphery of the electrode assembly, or an insulating spacer ( ) encased within the casing together with the electrode assembly such as to fill a space between one end of the electrode assembly and the casing. Alternatively, the fixing means may be constructed of a material with which the casing and the electrode assembly are joined together by applying heat and pressure, or may be an abutting surface ( ) provided to the casing ( ) itself such as to make contact with one end face of the electrode assembly within the casing.

Laminate sheath type battery

Growing community of inventors

Osaka, Japan

Hiroaki Ichinose