Modulating zinc metal reversibility by confined antifluctuator film for durable and dendrite-free zinc ion batteries.

Aqueous Zn ion batteries (ZIBs) are promising systems due to their intrinsic safety, low cost and non-toxicity, and the Zn corrosion and dendrite growth will cause the poor reversibility of Zn anode. Herein, we developed the porous Zn@C solid, hollow and yolk-shell microspheres film as Zn anode antifluctuator (ZAAF). The prepared yolk-shell microspheres (ZCYSM) film with superior buffering can effectively restrict the deposition of Zn metal in its interior and inhibit the volume expansion during plating/stripping process, thus modulating the Zn 2+ flux and enabling stable Zn cycling. As a proof of concept, the ZCYSM@Zn symmetric cells achieve the excellent cyclic stability over 4,000 h and cumulative plated capacity of 4 Ah cm -2 at a high current density of 10 mA cm -2 . Concomitantly, the suppressed corrosion reactions and dendrite-free ZAAF significantly improve the durability of full cells (coupled to CaV 6 O 16 ·3H 2 O). Additionally, we integrate durable pouch cell and electrochemical neuromorphic inorganic device (ENIDe) to simulate neural network, providing a strategy for extreme interconnectivity comparable to the human brain. This article is protected by copyright. All rights reserved.