Invention Application
- Patent Title: SECONDARY BATTERY, ELECTRONIC DEVICE, AND VEHICLE
- Patent Title (中): 二次电池,电子设备和车辆
-
Application No.: US14818566Application Date: 2015-08-05
-
Publication No.: US20160043359A1Publication Date: 2016-02-11
- Inventor: Hiroyuki MIYAKE
- Applicant: Semiconductor Energy Laboratory Co., LTD.
- Priority: JP2014-162785 20140808
- Main IPC: H01M2/02
- IPC: H01M2/02 ; H01M10/0525 ; H01M10/48

Abstract:
Provided is a secondary battery suitable for a portable information terminal or a wearable device, or an electronic device having a novel structure with a variety of forms and a secondary battery that fits the form of the electronic device. The secondary battery is sealed using a film having projections that can reduce stress on the film caused when external force is applied. The film has a pattern of projections formed by pressing (e.g., embossing). A top portion of each of the projections has a region thicker than a bottom portion of each of the projections. The thickness of the top portion of each of the projections is 1.5 or more times, preferably 2 or more times, as large as that of the bottom portion of each of the projections, and is a thickness such that each of the projections has a convex space.
Public/Granted literature
- US09660225B2 Secondary battery, electronic device, and vehicle Public/Granted day:2017-05-23
Information query