What are the zinc electrochemical energy storage materials

Are zinc-based microelectrochemical energy storage devices a promising candidate?

In order to keep rapid pace with increasing demand of wearable and miniature electronics, zinc-based microelectrochemical energy storage devices (MESDs), as a promising candidate, have gained increasing attention attributed to low cost, environmental benign, and high performance.

Are zinc ions a promising energy storage device?

Moreover, zinc ions can transfer two electrons at a time with high transmission efficiency; therefore, ZIBs are considered to be highly promising energy storage devices. However, the development of ZIBs has not been smooth sailing, and there are several outstanding problems to be solved.

What are Zn-based electrochemical energy storage devices?

Zn-based electrochemical energy storage devices, including Zn-ion batteries (ZIBs), Zn-ion hybrid capacitors (ZIHCs), and Zn-air batteries (ZABs), have been considered strong contenders. Tremendous research efforts have been devoted to studying these devices, their constituting components, and their materials.

Should Zn metal be widely used in electrochemical energy storage devices?

Several previous review articles have discussed this issue. [11, 130] These articles' proposed test conditions and device structures should be widely adopted in future studies. Zn metal is the most widely used electrode in Zn-based electrochemical energy storage devices.

Can MXene be used in zinc-ion energy storage devices?

Then, the recent progress of MXene and MXene-based materials in ZIBs and ZICs is presented. The application of MXenes in other types of energy storage devices is also reported, which brings some inspiration to the application of MXenes in zinc-ion energy storage devices.

How do zinc-based EES systems store energy?

As discussed above, cathode materials of zinc-based EES systems store energy mainly through two mechanisms, i.e., capacitive process and redox reactions. Capacitive process is beneficial for realizing fast charge/discharge capability, while high capacity and high energy density generally rely on redox reactions.