Cargando…
Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries
Although the electrochemical properties of porous LiMn(2)O(4) microspheres are usually improved compared to those of irregular LiMn(2)O(4) particles, the effects of the different synthesis conditions on the preparation of the porous LiMn(2)O(4) microspheres are rarely discussed in detail. In the pre...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6587301/ https://www.ncbi.nlm.nih.gov/pubmed/31259169 http://dx.doi.org/10.3389/fchem.2019.00437 |
_version_ | 1783429041101996032 |
---|---|
author | Hai, Yun Zhang, Ziwei Liu, Hao Liao, Libing Fan, Peng Wu, Yuanyuan Lv, Guocheng Mei, Lefu |
author_facet | Hai, Yun Zhang, Ziwei Liu, Hao Liao, Libing Fan, Peng Wu, Yuanyuan Lv, Guocheng Mei, Lefu |
author_sort | Hai, Yun |
collection | PubMed |
description | Although the electrochemical properties of porous LiMn(2)O(4) microspheres are usually improved compared to those of irregular LiMn(2)O(4) particles, the effects of the different synthesis conditions on the preparation of the porous LiMn(2)O(4) microspheres are rarely discussed in detail. In the present work, porous LiMn(2)O(4) microspheres were successfully synthesized by using molten LiOH and porous Mn(2)O(3) spheres as a template. Multiple factors were considered in the preparation process, including reagent concentration, pH, adding mode, heating time, etc. The morphology of the MnCO(3) template was crucial for the preparation of porous LiMn(2)O(4) microspheres and it was mainly affected by the concentration of reactants and the pH value of the solution during the precipitation process. During the lithiation of Mn(2)O(3) microspheres, the heating temperature and the ratio between Mn(2)O(3) and lithium salt were the most significant variables in terms of control over the morphology and purity of the LiMn(2)O(4) microspheres. Furthermore, we demonstrated that the porous LiMn(2)O(4) microspheres presented better rate capability and cyclability compared to commercial LiMn(2)O(4) powder as cathode materials for lithium-ion batteries (LIBs). This study not only highlights the shape-controllable synthesis of LiMn(2)O(4) microspheres as promising cathode materials, but also provides some useful guidance for the synthesis of porous LiMn(2)O(4) microspheres and other LIB' electrode materials. |
format | Online Article Text |
id | pubmed-6587301 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-65873012019-06-28 Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries Hai, Yun Zhang, Ziwei Liu, Hao Liao, Libing Fan, Peng Wu, Yuanyuan Lv, Guocheng Mei, Lefu Front Chem Chemistry Although the electrochemical properties of porous LiMn(2)O(4) microspheres are usually improved compared to those of irregular LiMn(2)O(4) particles, the effects of the different synthesis conditions on the preparation of the porous LiMn(2)O(4) microspheres are rarely discussed in detail. In the present work, porous LiMn(2)O(4) microspheres were successfully synthesized by using molten LiOH and porous Mn(2)O(3) spheres as a template. Multiple factors were considered in the preparation process, including reagent concentration, pH, adding mode, heating time, etc. The morphology of the MnCO(3) template was crucial for the preparation of porous LiMn(2)O(4) microspheres and it was mainly affected by the concentration of reactants and the pH value of the solution during the precipitation process. During the lithiation of Mn(2)O(3) microspheres, the heating temperature and the ratio between Mn(2)O(3) and lithium salt were the most significant variables in terms of control over the morphology and purity of the LiMn(2)O(4) microspheres. Furthermore, we demonstrated that the porous LiMn(2)O(4) microspheres presented better rate capability and cyclability compared to commercial LiMn(2)O(4) powder as cathode materials for lithium-ion batteries (LIBs). This study not only highlights the shape-controllable synthesis of LiMn(2)O(4) microspheres as promising cathode materials, but also provides some useful guidance for the synthesis of porous LiMn(2)O(4) microspheres and other LIB' electrode materials. Frontiers Media S.A. 2019-06-14 /pmc/articles/PMC6587301/ /pubmed/31259169 http://dx.doi.org/10.3389/fchem.2019.00437 Text en Copyright © 2019 Hai, Zhang, Liu, Liao, Fan, Wu, Lv and Mei. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Hai, Yun Zhang, Ziwei Liu, Hao Liao, Libing Fan, Peng Wu, Yuanyuan Lv, Guocheng Mei, Lefu Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title | Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title_full | Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title_fullStr | Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title_full_unstemmed | Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title_short | Facile Controlled Synthesis of Spinel LiMn(2)O(4) Porous Microspheres as Cathode Material for Lithium Ion Batteries |
title_sort | facile controlled synthesis of spinel limn(2)o(4) porous microspheres as cathode material for lithium ion batteries |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6587301/ https://www.ncbi.nlm.nih.gov/pubmed/31259169 http://dx.doi.org/10.3389/fchem.2019.00437 |
work_keys_str_mv | AT haiyun facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT zhangziwei facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT liuhao facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT liaolibing facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT fanpeng facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT wuyuanyuan facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT lvguocheng facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries AT meilefu facilecontrolledsynthesisofspinellimn2o4porousmicrospheresascathodematerialforlithiumionbatteries |