journal article Nov 09, 2020

Challenges and strategies for ultrafast aqueous zinc‐ion batteries

Rare Metals Vol. 40 No. 2 pp. 309-328 · Wiley
View at Publisher Save 10.1007/s12598-020-01588-x
Abstract
Abstract

With the rising demand for fast‐charging technology in electric vehicles and portable devices, significant efforts have been devoted to the development of the high‐rate batteries. Among numerous candidates, rechargeable aqueous zinc‐ion batteries (ZIBs) are a promising option due to its high theoretical capacity, low redox potential of zinc metal anode and inherent high ionic conductivity of aqueous electrolyte. As the strong electrostatic interaction between Zn
2+
and host generally leads to sluggish electrode kinetics, many strategies have been proposed to enhance fast (dis)charging performance. Herein, we review the state‐of‐the‐art ultrafast aqueous ZIBs and focus on the rational electrode‐designing strategies, such as crystal structure engineering, nanostructuring and morphology controlling, conductive materials introducing and organic molecule designing. Recent research directions and future perspectives are also proposed in this review.
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