Details

Autor(en) / Beteiligte

• Zheng, Zhuoyuan
• Yan, Shiye
• Zhang, Yifan
• Zhang, Xingpeng
• Zhou, Jie
• Ye, Jilei
• Zhu, Yusong

Titel

An ultrathin natural cellulose based hydrogel membrane for the high-performance quasi-solid-state zinc-ion batteries

Ist Teil von

• Chemical engineering journal (Lausanne, Switzerland : 1996), 2023-11, Vol.475, p.146314, Article 146314

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •A non-porous and ultrathin cellulose-based hydrogel polymer membrane is synthesized.•The cellulose membrane exhibits a high liquid electrolyte uptake capacity and a large Zn2+ transference number.•Reversible electrodeposition up to 1800 h is achieved in a Zn/cellulose membrane/Zn cell at 1 mA cm−2.•The Zn/cellulose membrane/V2O5 cell demonstrates high capacity and excellent cycle life. Aqueous zinc-ion batteries (ZIBs) are regarded as promising candidates for next-generation energy storage systems due to their high capacity, inherent safety, and cost-effectiveness. However, the practical application of ZIBs is currently hindered by the insufficient stability of the zinc metal electrode and the spontaneous growth of dendrites during operation. Furthermore, the use of petroleum-based materials in batteries raises environmental concerns that must be addressed. This study proposes a natural cellulose-based biodegradable hydrogel membrane with an ultrathin and non-porous structure. Paper scraps are utilized as raw materials, and DMAc/LiCl serves as the dissolution system. The quasi-solid cellulose membrane demonstrates a high liquid absorption ability, favorable mechanical properties (39.5 MPa), excellent ion conductivity (0.643 mS cm−1), a wide electrochemical window (1.6 V), and a low activation energy for Zn2+ conduction (3.195 kJ mol−1). The Zn//Zn symmetric battery, assembled with the cellulose membrane, exhibits prolonged reversible Zn2+ stripping/plating behavior (up to 1800 h at 1 mA cm−2), highlighting its superior capability to suppress dendrite formation. Additionally, the corresponding Zn//V2O5 battery shows enhanced electrochemical stability, long cycle life, and high capacity. This research provides valuable insights for the development of polymer electrolytes that enable the realization of safe, lightweight, and environmentally friendly aqueous ZIBs.