Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries
Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo<sub>2</sub>...
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MDPI AG
2020-12-01
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| author | Ji Yan Xin-Bo Chang Xiao-Kai Ma Heng Wang Yong Zhang Ke-Zheng Gao Hirofumi Yoshikawa Li-Zhen Wang |
| author_facet | Ji Yan Xin-Bo Chang Xiao-Kai Ma Heng Wang Yong Zhang Ke-Zheng Gao Hirofumi Yoshikawa Li-Zhen Wang |
| author_sort | Ji Yan |
| collection | DOAJ |
| description | Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo<sub>2</sub>O<sub>4</sub> to NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCo<sub>2</sub>O<sub>4</sub> to intermediate NiO, hybrid NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub>, and, finally, to Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub>, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected. The optimized phosphorization with 1:3 reagent mass ratio can maintain the spherical architecture, hold hybrid crystal structure, and improve the reversibly electrochemical lithium-ion storage properties. A specific capacity of 415 mAh g<sup>−1</sup> is achieved at 100 mA g<sup>−1</sup> specific current and maintains at 106 mAh g<sup>−1</sup> when the specific current increases to 5000 mA g<sup>−1</sup>. Even after 200 cycles at 500 mA g<sup>−1</sup>, the optimized electrode still delivers 224 mAh g<sup>−1</sup> of specific capacity, exhibiting desirable cycling stability. We believe that understanding of such selective phosphorization can further evoke a particular research enthusiasm for anode materials in lithium ion battery with high performances. |
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| last_indexed | 2024-03-10T13:50:49Z |
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| spelling | doaj.art-e2b7a1fe88d94d488a0368110166aa402023-11-21T02:13:03ZengMDPI AGMaterials1996-19442020-12-011412410.3390/ma14010024Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion BatteriesJi Yan0Xin-Bo Chang1Xiao-Kai Ma2Heng Wang3Yong Zhang4Ke-Zheng Gao5Hirofumi Yoshikawa6Li-Zhen Wang7School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaSchool of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, JapanSchool of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, ChinaPhosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo<sub>2</sub>O<sub>4</sub> to NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCo<sub>2</sub>O<sub>4</sub> to intermediate NiO, hybrid NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub>, and, finally, to Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub>, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected. The optimized phosphorization with 1:3 reagent mass ratio can maintain the spherical architecture, hold hybrid crystal structure, and improve the reversibly electrochemical lithium-ion storage properties. A specific capacity of 415 mAh g<sup>−1</sup> is achieved at 100 mA g<sup>−1</sup> specific current and maintains at 106 mAh g<sup>−1</sup> when the specific current increases to 5000 mA g<sup>−1</sup>. Even after 200 cycles at 500 mA g<sup>−1</sup>, the optimized electrode still delivers 224 mAh g<sup>−1</sup> of specific capacity, exhibiting desirable cycling stability. We believe that understanding of such selective phosphorization can further evoke a particular research enthusiasm for anode materials in lithium ion battery with high performances.https://www.mdpi.com/1996-1944/14/1/24selective phosphorizationnickel cobaltanode materialslithium-ion batteries |
| spellingShingle | Ji Yan Xin-Bo Chang Xiao-Kai Ma Heng Wang Yong Zhang Ke-Zheng Gao Hirofumi Yoshikawa Li-Zhen Wang Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries Materials selective phosphorization nickel cobalt anode materials lithium-ion batteries |
| title | Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries |
| title_full | Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries |
| title_fullStr | Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries |
| title_full_unstemmed | Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries |
| title_short | Selective Phosphorization Boosting High-Performance NiO/Ni<sub>2</sub>Co<sub>4</sub>P<sub>3</sub> Microspheres as Anode Materials for Lithium Ion Batteries |
| title_sort | selective phosphorization boosting high performance nio ni sub 2 sub co sub 4 sub p sub 3 sub microspheres as anode materials for lithium ion batteries |
| topic | selective phosphorization nickel cobalt anode materials lithium-ion batteries |
| url | https://www.mdpi.com/1996-1944/14/1/24 |
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