Iodine-doped sulfurized polyacrylonitrile with enhanced electrochemical performance for room-temperature sodium/potassium sulfur batteries

Shaobo Ma; Pengjian Zuo; Han Zhang; Zhenjiang Yu; Can Cui; Mengxue He; Geping Yin

doi:10.1039/c9cc01612k

Iodine-doped sulfurized polyacrylonitrile with enhanced electrochemical performance for room-temperature sodium/potassium sulfur batteries

Chem Commun (Camb). 2019 May 8;55(36):5267-5270. doi: 10.1039/c9cc01612k. Epub 2019 Apr 17.

Authors

Shaobo Ma¹, Pengjian Zuo¹, Han Zhang², Zhenjiang Yu¹, Can Cui¹, Mengxue He¹, Geping Yin¹

Affiliations

¹ MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, Harbin Institute of Technology, Harbin 150001, China. zuopj@hit.edu.cn.
² State Key Laboratory of Power Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.

PMID: 30993277
DOI: 10.1039/c9cc01612k

Abstract

Iodine-doped sulfurized polyacrylonitrile (I-S@pPAN) is reported for room-temperature sodium sulfur (RT-Na/S) and potassium sulfur (RT-K/S) batteries operated in ester-based electrolytes. It delivers an unprecedented capacity of 994 mA h g^-1 at 2C (3350 mA g^-1) for the RT-Na/S battery, whilst a reversible capacity of 947 mA h g^-1 at 0.1C for the RT-K/S battery.