Liquid Metal‐Based Stable and Stretchable Zn‐Ion Battery for Electronic Textiles

Abstract

Electronic textiles harmoniously interact with the human body and the surrounding environment, offering tremendous interest in smart wearable electronics. However, their wide application faces challenges due to the lack of stable and stretchable power electrodes/devices with multifunctional design. Herein, we report an intrinsically stretchable liquid metal‐based fibrous anode for a stable Zn‐ion battery (ZIB). Benefiting from the liquid feature and superior deformability of the liquid metal, optimized Zn ion concentration distribution and Zn (002) deposition behavior have been observed, which results in dendrite‐free performance even under stretching. With a strain of 50%, the ZIB maintains a high capacity of 139.8 mAh cm−3 (corresponding to 83.0% of the initial value) after 300 cycles, outperforming bare Zn fiber‐based ZIB. The fibrous ZIB seamlessly integrates with sensor, Joule heater and wirelessly charging device, which provides a stable power supply for human signal monitoring and personal thermal management, holding promise for the application of wearable multifunctional electronic textiles.This article is protected by copyright. All rights reserved

Mixed Self‐Assembled Hole‐Transport Monolayer Enables Simultaneous Improvement of Efficiency and Stability of Perovskite Solar Cells

“…Figure 1b,c shows the molecular structures of the MeO‐2PACz, which contains relatively low hydrophobic methoxy groups (–OCH 3 ) and shorter alkyl chains (C 2 H 4 ), and Me‐4PACz, which contains highly hydrophobic methyl groups (–CH 3 ) and long alkyl chains (C 4 H 8 ). [ 12 ] To deposit the mixed self‐assembled hole‐transport monolayer on the NiO x surface, MeO‐2PACz and Me‐4PACz were mixed in various ratios, and to compare the properties of single and mixed SAMs, each SAM solution was spin‐coated on NiO x as shown in Figure 1d–f. Similar to the results reported in previous studies, [11b,13] our study also had limitations in uniformly forming perovskite films on hydrophobic Me‐4PACz using conventional methods (Figure S1, Supporting Information).…”

Recent progress in the study of integrated solar cell-energy storage systems

“…In the current design of LIBs and SIBs, several challenges, including environmental concerns, cost limitations, and safety issues, hinder further advancement. 30,31 Conversely, aqueous electrochemical systems utilizing multivalent charge carriers such as Zn 2+ , Mg 2+ , Ca 2+ , Cu 2+ , and Al 3+ emerge as promising candidates for the next generation of batteries, combining extreme safety with environmental friendliness. Among these, rechargeable Zn-based batteries (RZBs) have garnered attention due to their abundant Zn reserves, high theoretical capacity (820 mA h g −1 ), low electrochemical potential (−0.763 V versus the standard hydrogen electrode), intrinsic safety, balanced kinetics, and good reversibility in aqueous solutions.…”

Flexible electrochemical energy storage devices and related applications: recent progress and challenges

“…However, the tensile properties of MXene films are not inherent, thereby limiting the maximum tensile strain of this electrode material. Guan and his colleagues 106 have reported an intrinsically stretchable liquid metal fiber anode (LM@Zn) ( Fig. 10b ).…”