Are flexible energy storage devices bending?

Although several mechanical characters can describe the bending status of the flexible energy storage devices, the simplest property is their bending endurance under a given radius.

What are bending parameters?

Three parameters can generally describe the bending status of devices: (1) L: the end-to-end distance along the bending direction; (2) θ: the bending angle; (3) R: the bending radius of curvature. The schematics of these parameters are shown in Figure 2 b for the flexible device as a mechanical beam.

Can flexible energy storage devices improve mechanical performance?

In general, realizing the ultimate improvement of the mechanical performance of energy storage devices is challenging in the theoretical and experimental research of flexible electronics. As an important component of flexible electronics, flexible energy sources, including LIBs and SCs, have attracted significant attention.

What are the mechanical deformation characteristics of flexible energy storage devices?

Reproduced with permission. 2, 6 Copyright 2009, American Association for the Advancement of Science and Copyright 2016, Nature Publishing Group. Tolerance in bending into a certain curvature is the major mechanical deformation characteristic of flexible energy storage devices.

Why should we study bending mechanics?

Furthermore, a deep analysis of bending mechanics can provide rational guidance for the structural design of devices. As predicted, devices can be bent to extremely small radii and be folded similar to a map by use of a low modulus and thin substrate, as well as active layer and encapsulation.

What are the parts of a bending tester?

A typical bending tester is generally composed of three parts: (1) sample holder to fix the energy storage devices.