High strength hydrogels enable dendrite-free Zn metal anodes and high-capacity Zn-MnO2 batteries via a modified mechanical suppression effect

Zhu Ruijie; Yang Huijun; Cui Wei; Fadillah Laras; Huang Tianhong; Xiong Zetao; Tang Chunmei; Kowalski Damian; Kitano Sho; Zhu Chunyu; King Daniel R.; Kurokawa Takayuki; Aoki Yoshitaka; Habazaki Hiroki

タイトル	en High strength hydrogels enable dendrite-free Zn metal anodes and high-capacity Zn-MnO2 batteries via a modified mechanical suppression effect
作成者	en Zhu, Ruijie en Yang, Huijun en Cui, Wei en Fadillah, Laras en Huang, Tianhong en Xiong, Zetao en Tang, Chunmei en Kowalski, Damian en Kitano, Sho NRID 1000050736840 en Zhu, Chunyu en King, Daniel R. en Kurokawa, Takayuki NRID 1000040451439 en Aoki, Yoshitaka NRID 1000050360475 en Habazaki, Hiroki NRID 1000050208568
アクセス権	open access
主題	NDC 430
内容注記	Abstract en Rechargeable aqueous zinc-ion batteries (RAZIBs) have some inherent advantages such as intrinsic safety, low-cost and theoretically high energy density, making them a current topic of interest. However, the phenomenon of zinc (Zn) dendrite growth at the anode results in the instability of RAZIBs and limits their real-world application. Herein, by employing a high strength hydrogel polymer electrolyte, the growth of dendritic Zn crystals is effectively eliminated through the mechanical suppression effect, resulting in a stable Zn anode that demonstrates dendrite-free plating/stripping with a long lifespan. Even under a high current density of 5 mA cm(-2), the Zn\|\|Zn symmetric cell is shown to have a cyclic lifetime of longer than 1000 hours. Moreover, the stable cyclic performance of the Zn anode spawns a Zn\|\|MnO2 battery with high capacity (4.8-1.9 mA h cm(-2)) and long lifetime (500 cycles at 9.2 mA cm(-2), 1C), which can meet the practical demands for portable devices. This work shows that high strength polymer gel electrolytes with internal energy dissipation mechanisms can overcome previous challenges that prevented practical utilization of RAZIBs. Together with the outstanding cyclic properties of the high capacity Zn\|\|MnO2 batteries, this work provides a new pathway toward designing high energy density RAZIBs.
出版者	en Royal Society of Chemistry
日付	Issued2022-02-14
言語	eng
資源タイプ	journal article
出版タイプ	AM
資源識別子	HDL http://hdl.handle.net/2115/88168
関連	isVersionOf DOI https://doi.org/10.1039/d1ta10079c
収録誌情報	PISSN 2050-7488 en Journal of Materials Chemistry A 巻10 号6 開始ページ3122 終了ページ3133
ファイル	fulltext J. Mater. Chem. A 10-6_3122-3133.pdf 1.29 MB (application/pdf) Issued2022-02-14 fulltext Supporting information J. Mater. Chem. A 10-6_3122-3133.pdf 3.97 MB (application/pdf) Issued2022-02-14
コンテンツ更新日時	2023-07-26