Engineering of high-entropy cathode materials for lithium-ion batteries has been actively pursued owing to the outstanding conductivity of high-entropy materials benefited from the maximum entropy and unique antisite disordering structure. Olivine lithium metal phosphates such as LiMnPO4 and LiNiPO4 feature high working voltages but low capacities due to their insulation nature. In this work, the synthesis of the high-entropy lithium metal phosphate materials (HELMPs) is realized by combining mechanochemistry with a calcination method. By regulating lattice of HELMPs, the high-entropy Li(Mn0.35Fe0.35Co0.1Mg0.1Ca0.1)PO4 reveals three typical high-voltage plateaus in charge–discharge curves corresponding to the redox of Fe, Mn, and Co in the voltage range of 2.0–4.9 V vs Li+/Li, and a much higher initial capacity than LiMnPO4 (104 vs 15 mAh g−1).
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22 April 2024
Research Article|
April 25 2024
Lattice engineering of high-entropy olivine-type lithium metal phosphate as high-voltage cathodes Available to Purchase
Juntian Fan
;
Juntian Fan
(Data curation, Validation, Writing – original draft)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
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Tao Wang
;
Tao Wang
a)
(Investigation, Methodology, Supervision, Writing – review & editing)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
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Yating Yuan;
Yating Yuan
(Data curation, Resources)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
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Albina Borisevich
;
Albina Borisevich
(Data curation)
2
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
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Chi-Linh Do-Thanh
;
Chi-Linh Do-Thanh
(Writing – review & editing)
3
Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee
, Knoxville, Tennessee 37996, USA
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Zhenzhen Yang;
Zhenzhen Yang
(Writing – review & editing)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
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Sheng Dai
Sheng Dai
a)
(Conceptualization, Funding acquisition, Investigation, Supervision)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
3
Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee
, Knoxville, Tennessee 37996, USA
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Juntian Fan
1
Tao Wang
1,a)
Yating Yuan
1
Albina Borisevich
2
Chi-Linh Do-Thanh
3
Zhenzhen Yang
1
Sheng Dai
1,3,a)
1
Chemical Sciences Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
2
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
, Oak Ridge, Tennessee 37831, USA
3
Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee
, Knoxville, Tennessee 37996, USA
Appl. Phys. Lett. 124, 171909 (2024)
Article history
Received:
January 31 2024
Accepted:
April 06 2024
Citation
Juntian Fan, Tao Wang, Yating Yuan, Albina Borisevich, Chi-Linh Do-Thanh, Zhenzhen Yang, Sheng Dai; Lattice engineering of high-entropy olivine-type lithium metal phosphate as high-voltage cathodes. Appl. Phys. Lett. 22 April 2024; 124 (17): 171909. https://doi.org/10.1063/5.0201709
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