文献类型：期刊文献

英文题名：Hierarchically Porous Fep Nanospindles Wrapped by Nitrogen-Phosphorus Co-Doped Carbon for Enhanced Lithium Storage Performance

作者：Yang, Yang[1]; Xu, Le[1]; Zhang, Peilin[1]; Wang, Weiwei[1]; Zhou, Jiao-Jiao[1]; Wang, Wanqing[1]; Ji, Wuxing[1]; Xu, Xicheng[1]; Ding, Hualong[1]; Chen, Luyang[1]

机构：[1] Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220035129)

语种：英文

外文关键词：Carbon - Coatings - Hydrothermal synthesis - Iron compounds - Nitrogen - Phosphorus - Phosphorus compounds

摘要：The hierarchical porous iron phosphides nanospindles with nitrogen-phosphorus co-doped carbon coatings (FeP@NPC) are fabricated via a combination of hydrothermal synthesis and subsequent phosphating treatment, which is extensively researched for elevating the outstanding performance of lithium-ion batteries (LIBs). The as-prepared FeP@NPC nanocomposite manifests a distinguished specific capacity of 1100 mAh g -1 after 200 cycles at 0.2 A g -1 , a ranking rate performance with a high capacity of ~600 mAh g -1 at 5 A g -1 and a reversible long cycling capacity of 951.7 mAh g -1 after 800 cycles at 1 A g -1 . The superior properties can be ascribed to the joint contribution of well-designed porous nanostructure and conductive N, P co-doped carbon coating, which simultaneously facilitates efficient transmission of lithium ions and electrons, contributes to mild volume expansion and elevates structure stability during reversible charge-discharge process. ? 2022, The Authors. All rights reserved.