Structure and Characterization of LiFe0.99M0.01PO4/C Electrodes

doi:10.3724/SP.J.1077.2006.00880

Abstract

Abstract: In latest studies we confirmed that the PAM (polyacrylamide) templated LiFePO₄/C composite was nano-structured with better rate property and higher specific capacity, compared with the undoped LiFePO₄. In this article we further synthesized metal ions doped phosphates by this templating method, and all the capacities of those LiFe_0.99M_0.01PO₄/C (M=Nd³⁺、Co³⁺、Cr³⁺、Mn³⁺) composites were enhanced. When discharging at C/3 rate the capacity of LiFePO₄/C composite was only 108mAh·g^-1, while those of the doped LiFe_0.99M_0.01PO₄/C were respectively 140, 129, 120 and 115mAh·g-1. And the cycliabilities were also stable. Researches show that the conductivities of those doped materials are improved by 5～7 magnitude, which are close to those in references. XRD
patterns show that those doped materials still remain their ordered olivine structure.

Key words: lithium ion battery, cathode material, LiFePO4, doping

CLC Number:

TM912

YANG Shu-Ting,LI Ting-Ju. Structure and Characterization of LiFe_0.99M_0.01PO₄/C Electrodes[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.00880.

[1]	SHEN Hao, CHEN Qianqian, ZHOU Boxiang, TANG Xiaodong, ZHANG Yuanyuan. Preparation and Energy Storage Properties of A-site La/Sr Co-doped PbZrO₃ Thin Films [J]. Journal of Inorganic Materials, 2024, 39(9): 1022-1028.
[2]	CHENG Jun, ZHANG Jiawei, QIU Pengfei, CHEN Lidong, SHI Xun. Preparation and Thermoelectric Transport Properties of P-doped β-FeSi₂ [J]. Journal of Inorganic Materials, 2024, 39(8): 895-902.
[3]	ZHAO Zhihan, GUO Peng, WEI Jing, CUI Li, LIU Shanze, ZHANG Wenlong, CHEN Rende, WANG Aiying. Ti Doped Diamond Like Carbon Films: Piezoresistive Properties and Carrier Transport Behavior [J]. Journal of Inorganic Materials, 2024, 39(8): 879-886.
[4]	LI Jiaqi, LI Xiaosong, LI Xuanhe, ZHU Xiaobing, ZHU Aimin. Transition Metal-doped Manganese Oxide: Synthesis by Warm Plasma and Electrocatalytic Performance for Oxygen Evolution Reaction [J]. Journal of Inorganic Materials, 2024, 39(7): 835-844.
[5]	CHENG Jie, ZHOU Yue, LUO Xintao, GAO Meiting, LUO Sifei, CAI Danmin, WU Xueyin, ZHU Licai, YUAN Zhongzhi. Construction and Electrochemical Properties of Yolk-shell Structured FeF₃·0.33H₂O@N-doped Graphene Nanoboxes [J]. Journal of Inorganic Materials, 2024, 39(3): 299-305.
[6]	TAM YU Puy Mang, XU Yu, GAO Quanhao, ZHOU Haiqiong, ZHANG Zhen, YIN Hao, LI Zhen, LÜ Qitao, CHEN Zhenqiang, MA Fengkai, SU Liangbi. Spectroscopic Properties and Optical Clusters in Erbium-doped CaF₂, SrF₂ and PbF₂ Crystals [J]. Journal of Inorganic Materials, 2024, 39(3): 330-336.
[7]	LI Qiushi, YIN Guangming, LÜ Weichao, WANG Huaiyao, LI Jinglin, YANG Hongguang, GUAN Fangfang. Preparation of Na⁺/g-C₃N₄ Materials and Their Photocatalytic Degradation Mechanism on Methylene Blue [J]. Journal of Inorganic Materials, 2024, 39(10): 1143-1150.
[8]	DAI Le, LIU Yang, GAO Xuan, WANG Shuhao, SONG Yating, TANG Mingmeng, DMITRY V Karpinsky, LIU Lisha, WANG Yaojin. Self-polarization Achieved by Compositionally Gradient Doping in BiFeO₃ Thin Films [J]. Journal of Inorganic Materials, 2024, 39(1): 99-106.
[9]	HU Mengfei, HUANG Liping, LI He, ZHANG Guojun, WU Houzheng. Research Progress on Hard Carbon Anode for Li/Na-ion Batteries [J]. Journal of Inorganic Materials, 2024, 39(1): 32-44.
[10]	LI Guanglan, WANG Tianyu, LIU Yichen, LU Zhongfa. Layered NiFeCo-LDH-Ti₆C_3.75 Catalyst: Preparation and Performance for Oxygen Evolution Reaction [J]. Journal of Inorganic Materials, 2023, 38(7): 823-829.
[11]	KONG Guoqiang, LENG Mingzhe, ZHOU Zhanrong, XIA Chi, SHEN Xiaofang. Sb Doped O3 Type Na_0.9Ni_0.5Mn_0.3Ti_0.2O₂ Cathode Material for Na-ion Battery [J]. Journal of Inorganic Materials, 2023, 38(6): 656-662.
[12]	YANG Zhuo, LU Yong, ZHAO Qing, CHEN Jun. X-ray Diffraction Rietveld Refinement and Its Application in Cathode Materials for Lithium-ion Batteries [J]. Journal of Inorganic Materials, 2023, 38(6): 589-605.
[13]	YANG Yingkang, SHAO Yiqing, LI Bailiang, LÜ Zhiwei, WANG Lulu, WANG Liangjun, CAO Xun, WU Yuning, HUANG Rong, YANG Chang. Enhanced Band-edge Luminescence of CuI Thin Film by Cl-doping [J]. Journal of Inorganic Materials, 2023, 38(6): 687-692.
[14]	QI Zhanguo, LIU Lei, WANG Shouzhi, WANG Guogong, YU Jiaoxian, WANG Zhongxin, DUAN Xiulan, XU Xiangang, ZHANG Lei. Progress in GaN Single Crystals: HVPE Growth and Doping [J]. Journal of Inorganic Materials, 2023, 38(3): 243-255.
[15]	WANG Zhiqiang, WU Ji’an, CHEN Kunfeng, XUE Dongfeng. Large-size Er,Yb:YAG Single Crystal: Growth and Performance [J]. Journal of Inorganic Materials, 2023, 38(3): 329-334.

Structure and Characterization of LiFe_0.99M_0.01PO₄/C Electrodes

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments