A General Route for Encapsulating Monodispersed Transition Metal Phosphides into Carbon Multi-Chambers toward High-Efficient Lithium-Ion Storage with Underlying Mechanism Exploration

Xiang Cui; Jiaxin Chen; Zhefei SunLei WangQianqian PengBensheng XiaoLigong ZhaoHe ZhengYong WangJianbo WangXianfei ChenQiaobao ZhangShuangqiang Chen

首页> 外文期刊>Advanced functional materials >A General Route for Encapsulating Monodispersed Transition Metal Phosphides into Carbon Multi-Chambers toward High-Efficient Lithium-Ion Storage with Underlying Mechanism Exploration

【24h】

A General Route for Encapsulating Monodispersed Transition Metal Phosphides into Carbon Multi-Chambers toward High-Efficient Lithium-Ion Storage with Underlying Mechanism Exploration

机译：A General Route for Encapsulating Monodispersed Transition Metal Phosphides into Carbon Multi-Chambers toward High-Efficient Lithium-Ion Storage with Underlying Mechanism Exploration

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

Transition metal phosphides (MP_x) with high theoretical capacities andlow cost are regarded as the most promising anodes for lithium-ion batteries(LIBs), but the large volume variations and sluggish kinetics largelyrestrict their development. To solve the above challenges, herein a genericbut effective method is proposed to encapsulate various monodispersedMP_x into flexible carbon multi-chambers (MP_x@NC, M=Ni, Fe, Co, andCu, etc.) with pre-reserved voids, working as anodes for LIBs and markedlyboosting the Li~+ storage performance. Ni_2P@NC, one representativeexample of MP_x@NC anode, shows high reversible capacity (613 mAh g~(?1),200 cycles at 0.2 A g~(?1)), and superior cycle stability (475 mAh g~(?1), 800 cyclesat 2 A g~(?1)). Full cell coupled with LiFePO4 displays a high reversible capacity(150.1 mAh g~(?1) at 0.1 A g~(?1)) with stable cycling performance. In situ X-raydiffraction and transmission electron microscope techniques confirm thereversible conversion reaction mechanism and robust structural integrity,accounting for enhanced rate and cycling performance. Theoretical calculationsreveal the synergistic effect between MPx and carbon shells, which cansignificantly promote electron transfer and reduce diffusion energy barriers,paving ways to design high-energy-density materials for energy storagesystems.

著录项

来源
《Advanced functional materials》 |2023年第15期|2212100.1-2212100.13|共13页
作者
Xiang Cui; Jiaxin Chen; Zhefei SunLei WangQianqian PengBensheng XiaoLigong ZhaoHe ZhengYong WangJianbo WangXianfei ChenQiaobao ZhangShuangqiang Chen;
展开▼
作者单位

Department of Chemical EngineeringSchool of Environmental and Chemical EngineeringShanghai UniversityNo. 99 Shangda Road, Shanghai 200444, P. R. China;

Department of Materials Science and EngineeringCollege of MaterialsXiamen UniversityXiamen, Fujian 361005, P. R. China;

School of Physics and TechnologyCenter for Electron MicroscopyMOE Key Laboratory of Artificial Micro- and Nano-structuresand Institute for Advanced StudiesWuhan UniversityWuhan 430072, P. R. ChinaCollege of Materials and Chemistry & Chemical EngineeringChengdu University of TechnologyChengdu 610059, P. R. ChinaDepartment of Materials Science and EngineeringCollege of MaterialsXiamen UniversityXiamen, Fujian 361005, P. R. China, Key Laboratory of High Performance Ceramics Fibers Ministry of EducationXiamen UniversityXiamen, Fujian 361005, P. R. 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
carbon multi-chambers; generic synthesis methods; in situ techniques; lithium-ion storage performances; transition metal phosphides;

A General Route for Encapsulating Monodispersed Transition Metal Phosphides into Carbon Multi-Chambers toward High-Efficient Lithium-Ion Storage with Underlying Mechanism Exploration

摘要

著录项

相关主题

期刊订阅