Solid-State Rechargeable Zn//NiCo and Zn–Air Batteries with Ultralong Lifetime and High Capacity : The Role of a Sodium Polyacrylate Hydrogel Electrolyte

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Journal / PublicationAdvanced Energy Materials
Volume8
Issue number31
Early online date21 Sep 2018
Publication statusPublished - 5 Nov 2018

Abstract

Solid-state aqueous energy conversion and storage are regarded as one of the most promising energy technologies for low-cost and large-scale applications without safety risk. However, current solid-state aqueous batteries can only sustain tens to hundreds of charging–discharging cycles and deliver limited capacities, particularly in alkaline electrolytes. This has severely limited solid-state energy technologies for large-scale applications. Herein, it is reported that a sodium polyacrylate hydrogel electrolyte ensures an order of magnitude higher cycling stability than those of their state-of-the-art counterparts and high capacities for the solid-state Zn//NiCo and Zn–air batteries. The observed superb cell performance is attributed to a high ionic conductivity and water-retaining capability intrinsically associated with the sodium polyacrylate hydrogel electrolyte, coupled with the acrylate-ion-facilitated formation of quasi-solid electrolyte interface to eliminate zinc dendrites.

Research Area(s)

  • hydrogel electrolytes, sodium polyacrylate, ultralong lifetime, Zn-based batteries

Citation Format(s)

Solid-State Rechargeable Zn//NiCo and Zn–Air Batteries with Ultralong Lifetime and High Capacity : The Role of a Sodium Polyacrylate Hydrogel Electrolyte. / Huang, Yan; Li, Zhen; Pei, Zengxia; Liu, Zhuoxin; Li, Hongfei; Zhu, Minshen; Fan, Jun; Dai, Quanbin; Zhang, Mingdao; Dai, Liming; Zhi, Chunyi.

In: Advanced Energy Materials, Vol. 8, No. 31, 05.11.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review