Patent Number: 8,586,233

Title: Portable electronic device

Abstract: Provided is a highly safe portable electronic device having a secondary battery as a power source, and including a package, an electronic device body housed in the package, and a battery housing portion housed in the package, in which even if the content melts due to an extremely significant impact applied thereto, discharge of a melt is inhibited. 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 a covering layer, which includes a temperature suppression layer and a block layer, provided on its surface.

Inventors: Takezawa; Hideharu (Nara, JP), Yokoyama; Tomohiko (Osaka, JP), Iwamoto; Kazuya (Osaka, JP), Yamamoto; Taisuke (Nara, JP)

Assignee: Panasonic Corporation

International Classification: H01M 2/02 (20060101); H01M 2/10 (20060101); H01M 10/50 (20060101); H01M 2/00 (20060101); H01M 2/08 (20060101)

Expiration Date: 1/19/12018