Development status of flexible energy storage devices

What are flexible energy storage devices?

Flexible energy storage devices typically consist of an electrode, electrolyte, separator membrane, and packaging material. To develop this energy device, each component plays its original functions under various deformation states without any flaws.

What are flexible aqueous energy storage devices for flexible electronics?

In this review, we focus on pioneering works of flexible aqueous energy storage devices for flexible electronics, covering the material designs for essential components of the energy devices such as active materials, current collectors, aqueous electrolyte, and separator membranes.

Which materials are used in flexible energy storage devices?

Firstly, a concise overview is provided on the structural characteristics and properties of carbon-based materials and conductive polymer materials utilized in flexible energy storage devices. Secondly, the fabrication process and strategies for optimizing their structures are summarized.

What is the mechanical reliability of flexible energy storage devices?

As usual, the mechanical reliability of flexible energy storage devices includes electrical performance retention and deformation endurance. As a flexible electrode, it should possess favorable mechanical strength and large specific capacity. And the electrodes need to preserve efficient ionic and electronic conductivity during cycling.

Why do we need flexible aqueous energy storage devices with high energy density?

Thus, the design of mechanically stable electrolytes and wide electrochemical windows are key factors to utilize flexible aqueous energy storage devices with high energy density .

Can ultraflexible energy harvesters and energy storage devices form flexible power systems?

The integration of ultraflexible energy harvesters and energy storage devices to form flexible power systems remains a significant challenge. Here, the authors report a system consisting of organic solar cells and zinc-ion batteries, exhibiting high power output for wearable sensors and gadgets.