Honda Motor Co., Ltd.

Yohei Noji

Kosuke Tatsushima

Kenta Umetsu

Koei Fujiki

Keisuke Matsuzaka

Masanori Totsuka

Yoshikazu Shinnabe

Masahiro Ohta

Hiroyuki Takahashi

Kosei Miyata

The present invention provides a battery cell capable of uniformly holding an electrode laminate and speeding up a manufacturing process. A battery cell includes an electrode laminate including positive and negative electrodes and an electrolyte layer, in which the positive and negative electrodes are alternately laminated with the electrolyte layer interposed between them; and a tube-shaped insulating member that is heat-shrinkable and holds the electrode laminate, wherein the insulating material has at least two folded parts for positioning a member disposed in the internal space of the insulating member. The insulating member preferably has two portions each between the two folded parts, and the two portions are preferably equal in circumferential length.

Battery cell

A winding section of a filament winding apparatus winds a fiber bundle around a filament-wound member. A tension acquisition part acquires a detected winding-tension value. A supply-speed acquisition part acquires a detected supply-speed value. A storage part stores correlation information in which an allowable determination range of winding tension is set in relation to the supply speed. A determination part determines whether the winding of the fiber bundle is successful or unsuccessful by comparing detected-value information, including the detected winding-tension value and the detected supply-speed value associated with each other, with the correlation information.

Filament winding apparatus and filament winding method

A filament winding apparatus winds, around a workpiece, a fiber bundle formed by bundling a plurality of fibers. The filament winding apparatus includes a widening roller that rotates while making contact with the fiber bundle that is being conveyed. The widening roller has, provided on the peripheral surface, a plurality of projecting ridges extending in the axial direction, the projecting ridges being arranged side by side in the circumferential direction. The projecting ridges make contact with the fiber bundle to thereby widen the fiber bundle.

Filament winding apparatus

A mandrel structure for use in manufacturing a fiber reinforced resin vessel by a filament winding process, includes: a shaft having a pair of axial ends configured to be supported by a drive unit; a mandrel having the shaft passed therethrough; and a pair of fittings having the shaft passed therethrough and projecting axially from respective axial ends of the mandrel. The mandrel is formed as a hollow shell made of a water-soluble material, and includes a pair of shaft holes receiving the shaft therein, and a receiving recess formed in a part of the mandrel surrounding each shaft hole and configured to engage the corresponding fitting in a rotationally fast manner.

Mandrel structure and manufacturing method thereof

A mandrel for manufacturing a fiber reinforced resin vessel by a filament winding process includes: a tubular part; and a pair of end parts joined to respective axial ends of the tubular part. The tubular part and the end parts are each made of a molded product of a material including pulp and a starch-based binder.

Growing community of inventors

Wako, Japan

Yohei Noji