One-pot solvothermal synthesis of S-doped LiMn0.5Fe0.5PO4@N/S-doped C core-shell structured composites for lithium-ion batteries

Baoquan Zhang; Shuzhong Wang; Lu Liu; Wei Liu; Jinlong Wang; Jianqiao Yang; Yanhui Li

doi:10.1016/j.matlet.2022.132586

One-pot solvothermal synthesis of S-doped LiMn_0.5Fe_0.5PO₄@N/S-doped C core-shell structured composites for lithium-ion batteries

Baoquan Zhang
, Shuzhong Wang
, Lu Liu
, Wei Liu
, Jinlong Wang
, Jianqiao Yang
, Yanhui Li

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

A self-assembled core-shell structured S-doped LiMn_0.5Fe_0.5PO₄@N/S-doped C composites were prepared by a convenient one-step solvothermal process. The glucose-derived carbon microspheres are coated with LiMn_0.5Fe_0.5PO₄ particles and form secondary particles of core-shell structure. Thioacetamide (TAA) and cetyltrimethylammonium bromide (CTAB) regulate the growth of LiMn_0.5Fe_0.5PO₄ particles and provide N and S atoms for doping the composites. Electrochemical tests show that appropriate additions of TAA and CTAB can improve the discharge capacity of LiMn_0.5Fe_0.5PO₄ cathodes. The LMFP@G-0.5TC delivers high specific discharge capacities of 166.83 mAh·g⁻¹ (0.1 C) and 96.47 mAh·g⁻¹ (10 C).

Original language	English
Article number	132586
Journal	Materials Letters
Volume	323
DOIs	https://doi.org/10.1016/j.matlet.2022.132586
State	Published - 15 Sep 2022

Keywords

Carbon materials
Doping
Lithium-ion batteries
Microstructure
Nanocomposites

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.matlet.2022.132586

Cite this

@article{1b40d55f986f44b0aff1dbddb3bdfff4,

title = "One-pot solvothermal synthesis of S-doped LiMn0.5Fe0.5PO4@N/S-doped C core-shell structured composites for lithium-ion batteries",

abstract = "A self-assembled core-shell structured S-doped LiMn0.5Fe0.5PO4@N/S-doped C composites were prepared by a convenient one-step solvothermal process. The glucose-derived carbon microspheres are coated with LiMn0.5Fe0.5PO4 particles and form secondary particles of core-shell structure. Thioacetamide (TAA) and cetyltrimethylammonium bromide (CTAB) regulate the growth of LiMn0.5Fe0.5PO4 particles and provide N and S atoms for doping the composites. Electrochemical tests show that appropriate additions of TAA and CTAB can improve the discharge capacity of LiMn0.5Fe0.5PO4 cathodes. The LMFP@G-0.5TC delivers high specific discharge capacities of 166.83 mAh·g−1 (0.1 C) and 96.47 mAh·g−1 (10 C).",

keywords = "Carbon materials, Doping, Lithium-ion batteries, Microstructure, Nanocomposites",

author = "Baoquan Zhang and Shuzhong Wang and Lu Liu and Wei Liu and Jinlong Wang and Jianqiao Yang and Yanhui Li",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = sep,

day = "15",

doi = "10.1016/j.matlet.2022.132586",

language = "英语",

volume = "323",

journal = "Materials Letters",

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TY - JOUR

T1 - One-pot solvothermal synthesis of S-doped LiMn0.5Fe0.5PO4@N/S-doped C core-shell structured composites for lithium-ion batteries

AU - Zhang, Baoquan

AU - Wang, Shuzhong

AU - Liu, Lu

AU - Liu, Wei

AU - Wang, Jinlong

AU - Yang, Jianqiao

AU - Li, Yanhui

PY - 2022/9/15

Y1 - 2022/9/15

N2 - A self-assembled core-shell structured S-doped LiMn0.5Fe0.5PO4@N/S-doped C composites were prepared by a convenient one-step solvothermal process. The glucose-derived carbon microspheres are coated with LiMn0.5Fe0.5PO4 particles and form secondary particles of core-shell structure. Thioacetamide (TAA) and cetyltrimethylammonium bromide (CTAB) regulate the growth of LiMn0.5Fe0.5PO4 particles and provide N and S atoms for doping the composites. Electrochemical tests show that appropriate additions of TAA and CTAB can improve the discharge capacity of LiMn0.5Fe0.5PO4 cathodes. The LMFP@G-0.5TC delivers high specific discharge capacities of 166.83 mAh·g−1 (0.1 C) and 96.47 mAh·g−1 (10 C).

AB - A self-assembled core-shell structured S-doped LiMn0.5Fe0.5PO4@N/S-doped C composites were prepared by a convenient one-step solvothermal process. The glucose-derived carbon microspheres are coated with LiMn0.5Fe0.5PO4 particles and form secondary particles of core-shell structure. Thioacetamide (TAA) and cetyltrimethylammonium bromide (CTAB) regulate the growth of LiMn0.5Fe0.5PO4 particles and provide N and S atoms for doping the composites. Electrochemical tests show that appropriate additions of TAA and CTAB can improve the discharge capacity of LiMn0.5Fe0.5PO4 cathodes. The LMFP@G-0.5TC delivers high specific discharge capacities of 166.83 mAh·g−1 (0.1 C) and 96.47 mAh·g−1 (10 C).

KW - Carbon materials

KW - Doping

KW - Lithium-ion batteries

KW - Microstructure

KW - Nanocomposites

UR - https://www.scopus.com/pages/publications/85131463029

U2 - 10.1016/j.matlet.2022.132586

DO - 10.1016/j.matlet.2022.132586

M3 - 文章

AN - SCOPUS:85131463029

SN - 0167-577X

VL - 323

JO - Materials Letters

JF - Materials Letters

M1 - 132586

ER -