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Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material

[Image: see text] The suitability of multication doping to stabilize the disordered Fd3̅m structure in a spinel is reported here. In this work, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) was synthesized via a sol–gel route at a calcination temperature of 850 °C. LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) is evaluat...

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Autores principales: Sharma, Priyanka, Das, Chittaranjan, Indris, Sylvio, Bergfeldt, Thomas, Mereacre, Liuda, Knapp, Michael, Geckle, Udo, Ehrenberg, Helmut, Darma, Mariyam Susana Dewi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495482/
https://www.ncbi.nlm.nih.gov/pubmed/32954135
http://dx.doi.org/10.1021/acsomega.0c02174
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author Sharma, Priyanka
Das, Chittaranjan
Indris, Sylvio
Bergfeldt, Thomas
Mereacre, Liuda
Knapp, Michael
Geckle, Udo
Ehrenberg, Helmut
Darma, Mariyam Susana Dewi
author_facet Sharma, Priyanka
Das, Chittaranjan
Indris, Sylvio
Bergfeldt, Thomas
Mereacre, Liuda
Knapp, Michael
Geckle, Udo
Ehrenberg, Helmut
Darma, Mariyam Susana Dewi
author_sort Sharma, Priyanka
collection PubMed
description [Image: see text] The suitability of multication doping to stabilize the disordered Fd3̅m structure in a spinel is reported here. In this work, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) was synthesized via a sol–gel route at a calcination temperature of 850 °C. LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) is evaluated as positive electrode material in a voltage range between 3.5 and 5.3 V (vs Li(+)/Li) with an initial specific discharge capacity of 126 mAh g(–1) at a rate of C/2. This material shows good cycling stability with a capacity retention of 89% after 200 cycles and an excellent rate capability with the discharge capacity reaching 78 mAh g(–1) at a rate of 20C. In operando X-ray diffraction (XRD) measurements with a laboratory X-ray source between 3.5 and 5.3 V at a rate of C/10 reveal that the (de)lithiation occurs via a solid-solution mechanism where a local variation of lithium content is observed. A simplified estimation based on the in operando XRD analysis suggests that around 17–31 mAh g(–1) of discharge capacity in the first cycle is used for a reductive parasitic reaction, hindering a full lithiation of the positive electrode at the end of the first discharge.
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spelling pubmed-74954822020-09-18 Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material Sharma, Priyanka Das, Chittaranjan Indris, Sylvio Bergfeldt, Thomas Mereacre, Liuda Knapp, Michael Geckle, Udo Ehrenberg, Helmut Darma, Mariyam Susana Dewi ACS Omega [Image: see text] The suitability of multication doping to stabilize the disordered Fd3̅m structure in a spinel is reported here. In this work, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) was synthesized via a sol–gel route at a calcination temperature of 850 °C. LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4) is evaluated as positive electrode material in a voltage range between 3.5 and 5.3 V (vs Li(+)/Li) with an initial specific discharge capacity of 126 mAh g(–1) at a rate of C/2. This material shows good cycling stability with a capacity retention of 89% after 200 cycles and an excellent rate capability with the discharge capacity reaching 78 mAh g(–1) at a rate of 20C. In operando X-ray diffraction (XRD) measurements with a laboratory X-ray source between 3.5 and 5.3 V at a rate of C/10 reveal that the (de)lithiation occurs via a solid-solution mechanism where a local variation of lithium content is observed. A simplified estimation based on the in operando XRD analysis suggests that around 17–31 mAh g(–1) of discharge capacity in the first cycle is used for a reductive parasitic reaction, hindering a full lithiation of the positive electrode at the end of the first discharge. American Chemical Society 2020-08-31 /pmc/articles/PMC7495482/ /pubmed/32954135 http://dx.doi.org/10.1021/acsomega.0c02174 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Sharma, Priyanka
Das, Chittaranjan
Indris, Sylvio
Bergfeldt, Thomas
Mereacre, Liuda
Knapp, Michael
Geckle, Udo
Ehrenberg, Helmut
Darma, Mariyam Susana Dewi
Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title_full Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title_fullStr Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title_full_unstemmed Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title_short Synthesis and Characterization of a Multication Doped Mn Spinel, LiNi(0.3)Cu(0.1)Fe(0.2)Mn(1.4)O(4), as 5 V Positive Electrode Material
title_sort synthesis and characterization of a multication doped mn spinel, lini(0.3)cu(0.1)fe(0.2)mn(1.4)o(4), as 5 v positive electrode material
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495482/
https://www.ncbi.nlm.nih.gov/pubmed/32954135
http://dx.doi.org/10.1021/acsomega.0c02174
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