TEMPO-oxidized cellulose nanofiber hydrogel electrolyte for rechargeable Zn-ion batteries

Kento Kimura; Vittorio Marangon; Taiga Fukuda; Mana Suzuki; Nantapat Soontornnon; Yoichi Tominaga; Jusef Hassoun

doi:10.1039/d4cc05029k

TEMPO-oxidized cellulose nanofiber hydrogel electrolyte for rechargeable Zn-ion batteries

Chem Commun (Camb). 2024 Nov 19;60(93):13698-13701. doi: 10.1039/d4cc05029k.

Authors

Kento Kimura^{1

2}, Vittorio Marangon^{3

4}, Taiga Fukuda⁵, Mana Suzuki⁵, Nantapat Soontornnon⁵, Yoichi Tominaga^{1

2

5}, Jusef Hassoun^{2

3

4}

Affiliations

¹ Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei-Shi, Tokyo 184-8588, Japan. ytominag@cc.tuat.ac.jp.
² Institute of Global Innovation Research (GIR), Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei-Shi, Tokyo 184-8588, Japan.
³ Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121, Ferrara, Italy. jusef.hassoun@unife.it.
⁴ Graphene Lab, Istituto Italiano di Tecnologia, Via Morego 30, Genoa 16163, Italy.
⁵ Graduate School of Bio-Applications and Systems Engineering (BASE), Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei-Shi, Tokyo 184-8588, Japan.

PMID: 39485048
DOI: 10.1039/d4cc05029k

Abstract

A hydrogel composed of TEMPO-oxidized cellulose and zinc perchlorate is proposed as an electrolyte for rechargeable Zn-ion battery. The non-flowable solid-like electrolyte has strong shear-thinning behavior, room temperature conductivity of ∼10^-1 S cm^-1, and stable Zn/electrolyte interphase. The Zn-ion gel-battery with a β-MnO₂ cathode delivers over 100 mA h g^-1 at 1.5 V allowing safe energy storage.