TY - JOUR
T1 - Multi-Component Crosslinked Hydrogel Electrolyte toward Dendrite-Free Aqueous Zn Ion Batteries with High Temperature Adaptability
AU - Lu, Hongyu
AU - Hu, Jisong
AU - Wang, Litong
AU - Li, Jianzhu
AU - Ma, Xiang
AU - Zhu, Zhicheng
AU - Li, Heqi
AU - Zhao, Yingjie
AU - Li, Yujie
AU - Zhao, Jingxin
AU - Xu, Bingang
N1 - Funding Information:
H.L., J.H., and L.W. contributed equally to this work. This work was supported by the Natural Science Foundation of Shandong Province China, (ZR202102220704) and the Research Grants Council of Hong Kong (RGC Postdoctoral Fellowship Scheme, Grant No.: PDFS2122‐5S03).
Publisher Copyright:
© 2022 Wiley-VCH GmbH.
PY - 2022/5/9
Y1 - 2022/5/9
N2 - Rechargeable aqueous Zn-ion batteries (ZIBs) are always regarded as a promising energy storage device owing to their higher safety and durability. However, two problems have become the main trouble for the practical application of ZIBs such as the dendrite growth of Zn metal anode in electrolyte and the freezing of water solvent at low temperature. Herein, to overcome these challenges, a new strategy, multi-component crosslinked hydrogel electrolyte, is proposed to inhibit Zn dendrites and realize low temperature environmental adaptability for ZIBs. Benefitting from the superior inhibition effect of the polyacrylamide and dimethyl sulfoxide (DMSO) on Zn dendrites, the coulombic efficiency of the symmetric cell of ≈99.5% is achieved during the Zn plating/stripping over 1 300 h, and the assembled full-cell demonstrates the large specific capacity of 265.2 mAh g-1 and high cyclic stability with the capacity retention of 95.27% after 3 000 cycles. In addition, the full-cell delivers stable operation at a wide temperature range, from 60 to −40 °C, due to the introduction of additive DMSO. This work provides an inspired strategy and novel opportunities to realize a dendrite-free and wide-temperature rechargeable aqueous Zn-ion energy storage system.
AB - Rechargeable aqueous Zn-ion batteries (ZIBs) are always regarded as a promising energy storage device owing to their higher safety and durability. However, two problems have become the main trouble for the practical application of ZIBs such as the dendrite growth of Zn metal anode in electrolyte and the freezing of water solvent at low temperature. Herein, to overcome these challenges, a new strategy, multi-component crosslinked hydrogel electrolyte, is proposed to inhibit Zn dendrites and realize low temperature environmental adaptability for ZIBs. Benefitting from the superior inhibition effect of the polyacrylamide and dimethyl sulfoxide (DMSO) on Zn dendrites, the coulombic efficiency of the symmetric cell of ≈99.5% is achieved during the Zn plating/stripping over 1 300 h, and the assembled full-cell demonstrates the large specific capacity of 265.2 mAh g-1 and high cyclic stability with the capacity retention of 95.27% after 3 000 cycles. In addition, the full-cell delivers stable operation at a wide temperature range, from 60 to −40 °C, due to the introduction of additive DMSO. This work provides an inspired strategy and novel opportunities to realize a dendrite-free and wide-temperature rechargeable aqueous Zn-ion energy storage system.
KW - aqueous Zn ion batteries
KW - highly reversible Zn anodes
KW - hydrogel electrolytes
KW - wide-temperature range
KW - Zn dendrites
UR - http://www.scopus.com/inward/record.url?scp=85123789472&partnerID=8YFLogxK
U2 - 10.1002/adfm.202112540
DO - 10.1002/adfm.202112540
M3 - Journal article
AN - SCOPUS:85123789472
SN - 1616-301X
VL - 32
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 19
M1 - 2112540
ER -