Advanced Zinc–Iodine Batteries with Ultrahigh Capacity and Superior Rate Performance Based on Reduced Graphene Oxide and Water-in-Salt Electrolyte

Yu Ji; Junpeng Xie; Zhaoxi ShenYu LiuZhaorui WenLei LuoGuo Hong

首页> 外文期刊>Advanced functional materials >Advanced Zinc–Iodine Batteries with Ultrahigh Capacity and Superior Rate Performance Based on Reduced Graphene Oxide and Water-in-Salt Electrolyte

【24h】

Advanced Zinc–Iodine Batteries with Ultrahigh Capacity and Superior Rate Performance Based on Reduced Graphene Oxide and Water-in-Salt Electrolyte

机译：Advanced Zinc–Iodine Batteries with Ultrahigh Capacity and Superior Rate Performance Based on Reduced Graphene Oxide and Water-in-Salt Electrolyte

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Aqueous rechargeable zinc–iodine batteries have received increasing attentionin the field of portable electronics due to their high safety, low-cost,and great electrochemical performance. However, the insulated nature ofiodine and the unrestricted shuttle effect of soluble triiodide seriously limitthe lifespan and Coulombic efficiency (CE) of the batteries. Herein, a highperformancezinc–iodine energy storage system based on the hydrothermalreduced graphene oxide (rGO) and a high concentration zinc chloride waterin-salt electrolyte are promoted. The 3D microporous structures and outstandingelectrical conductivity of rGO make it an excellent host for iodine,while the water-in-salt electrolyte effectively suppresses the shuttle effectof triiodide and improves the CE of the system. As a result, an ultra-high I2mass loading of 25.33 mg cm~(?2) (loading ratio of 71.69 wt.%) is realized duringthe continuous charging/discharging process. The batteries deliver a highcapacity of 6.5 mAh cm~(?2) at 2 mA cm~(?2) with a much-improved CE of 95% anda prominent rate performance with capacity of 1 mAh cm~(?2) at 80 mA cm~(?2). Astable long-term cycling performance is also achieved with capacity retentionof 2 mAh cm~(?2) after 2000 cycles at 50 mA cm~(?2).

著录项

来源
《Advanced functional materials》 |2023年第10期|2210043.1-2210043.9|共9页
作者
Yu Ji; Junpeng Xie; Zhaoxi ShenYu LiuZhaorui WenLei LuoGuo Hong;
展开▼
作者单位

Institute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipa, Macau SAR 999078, China;

Institute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da UniversidadeTaipa, Macau SAR 999078, China, Department of Materials Science and Engineering & Centerof Super-Diamond and Advanced FilmsCollege of EngineeringCity Universit;

Department of Materials Science and Engineering & Centerof Super-Diamond and Advanced FilmsCollege of EngineeringCity University of Hong Kong83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
reduced graphene oxide; water in salt electrolytes; zinc–iodine batteries;

Advanced Zinc–Iodine Batteries with Ultrahigh Capacity and Superior Rate Performance Based on Reduced Graphene Oxide and Water-in-Salt Electrolyte

摘要

著录项

相关主题

期刊订阅