Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries
A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of prima...
Ausführliche Beschreibung
Autor*in: |
Mi, Yingying [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2014transfer abstract |
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Umfang: |
10 |
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Übergeordnetes Werk: |
Enthalten in: Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method - Xiao, Hong ELSEVIER, 2013, the international journal on the science and technology of electrochemical energy systems, New York, NY [u.a.] |
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Übergeordnetes Werk: |
volume:267 ; year:2014 ; day:1 ; month:12 ; pages:459-468 ; extent:10 |
Links: |
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DOI / URN: |
10.1016/j.jpowsour.2014.05.102 |
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Katalog-ID: |
ELV012356018 |
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520 | |a A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. | ||
520 | |a A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. | ||
650 | 7 | |a Lithium ion battery |2 Elsevier | |
650 | 7 | |a Lithium iron manganese phosphate |2 Elsevier | |
650 | 7 | |a High performance |2 Elsevier | |
650 | 7 | |a Spray dry |2 Elsevier | |
650 | 7 | |a Multiwall carbon nanotube |2 Elsevier | |
700 | 1 | |a Gao, Ping |4 oth | |
700 | 1 | |a Liu, Wen |4 oth | |
700 | 1 | |a Zhang, Weidong |4 oth | |
700 | 1 | |a Zhou, Henghui |4 oth | |
773 | 0 | 8 | |i Enthalten in |n Elsevier |a Xiao, Hong ELSEVIER |t Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method |d 2013 |d the international journal on the science and technology of electrochemical energy systems |g New York, NY [u.a.] |w (DE-627)ELV00098745X |
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10.1016/j.jpowsour.2014.05.102 doi GBVA2014012000006.pica (DE-627)ELV012356018 (ELSEVIER)S0378-7753(14)00795-2 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Mi, Yingying verfasserin aut Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries 2014transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. Lithium ion battery Elsevier Lithium iron manganese phosphate Elsevier High performance Elsevier Spray dry Elsevier Multiwall carbon nanotube Elsevier Gao, Ping oth Liu, Wen oth Zhang, Weidong oth Zhou, Henghui oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 https://doi.org/10.1016/j.jpowsour.2014.05.102 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 267 2014 1 1201 459-468 10 045F 620 |
spelling |
10.1016/j.jpowsour.2014.05.102 doi GBVA2014012000006.pica (DE-627)ELV012356018 (ELSEVIER)S0378-7753(14)00795-2 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Mi, Yingying verfasserin aut Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries 2014transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. Lithium ion battery Elsevier Lithium iron manganese phosphate Elsevier High performance Elsevier Spray dry Elsevier Multiwall carbon nanotube Elsevier Gao, Ping oth Liu, Wen oth Zhang, Weidong oth Zhou, Henghui oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 https://doi.org/10.1016/j.jpowsour.2014.05.102 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 267 2014 1 1201 459-468 10 045F 620 |
allfields_unstemmed |
10.1016/j.jpowsour.2014.05.102 doi GBVA2014012000006.pica (DE-627)ELV012356018 (ELSEVIER)S0378-7753(14)00795-2 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Mi, Yingying verfasserin aut Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries 2014transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. Lithium ion battery Elsevier Lithium iron manganese phosphate Elsevier High performance Elsevier Spray dry Elsevier Multiwall carbon nanotube Elsevier Gao, Ping oth Liu, Wen oth Zhang, Weidong oth Zhou, Henghui oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 https://doi.org/10.1016/j.jpowsour.2014.05.102 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 267 2014 1 1201 459-468 10 045F 620 |
allfieldsGer |
10.1016/j.jpowsour.2014.05.102 doi GBVA2014012000006.pica (DE-627)ELV012356018 (ELSEVIER)S0378-7753(14)00795-2 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Mi, Yingying verfasserin aut Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries 2014transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. Lithium ion battery Elsevier Lithium iron manganese phosphate Elsevier High performance Elsevier Spray dry Elsevier Multiwall carbon nanotube Elsevier Gao, Ping oth Liu, Wen oth Zhang, Weidong oth Zhou, Henghui oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 https://doi.org/10.1016/j.jpowsour.2014.05.102 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 267 2014 1 1201 459-468 10 045F 620 |
allfieldsSound |
10.1016/j.jpowsour.2014.05.102 doi GBVA2014012000006.pica (DE-627)ELV012356018 (ELSEVIER)S0378-7753(14)00795-2 DE-627 ger DE-627 rakwb eng 620 620 DE-600 690 VZ 50.92 bkl Mi, Yingying verfasserin aut Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries 2014transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. Lithium ion battery Elsevier Lithium iron manganese phosphate Elsevier High performance Elsevier Spray dry Elsevier Multiwall carbon nanotube Elsevier Gao, Ping oth Liu, Wen oth Zhang, Weidong oth Zhou, Henghui oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 https://doi.org/10.1016/j.jpowsour.2014.05.102 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 267 2014 1 1201 459-468 10 045F 620 |
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Enthalten in Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method New York, NY [u.a.] volume:267 year:2014 day:1 month:12 pages:459-468 extent:10 |
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Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries |
abstract |
A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. |
abstractGer |
A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. |
abstract_unstemmed |
A series of LiFe0.6Mn0.4PO4/C composites with different amount of multiwall carbon nanotubes (MWCNTs) has been successfully synthesized by introducing MWCNTs to LiFe0.6Mn0.4PO4 microspheres during the spray drying process. The as-prepared mesoporous spherical products (5–20 μm) are composed of primary nanoparticles (∼100 nm) and open-mesopores distribute both on the surface and inside the microspheres. XRD patterns and HRTEM images indicate that the as-prepared LiFe0.6Mn0.4PO4/C composites are well crystallized and no impurity phase is observed. As MWCNTs can entangle with the primary particles to form an interconnected conducting network, which can facilitate the electron transference, their existence can greatly enhance the conductivity between particles. Therefore, they can obviously increase the rate capability especially working at high current densities. Among the LiFe0.6Mn0.4PO4/C micro-spherical samples, the composite with 2% MWCNTs loading shows the best electrochemical performance, delivering a capacity of 163.3 mAh g−1 at 0.1 C, which is almost 96% of the theoretical capacity (∼170 mAh g−1). When discharged at 50 C, the composite still exhibits obviously higher capacity (64.23 mAh g−1) than the LiFe0.6Mn0.4PO4/C without MWCNTs (12.8 mAh g−1). Moreover, the MWCNTs embedded composite shows high cycle stability with no apparent capacity fading or voltage decay after 500 cycles at 45 °C. |
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Carbon nanotube-loaded mesoporous LiFe0.6Mn0.4PO4/C microspheres as high performance cathodes for lithium-ion batteries |
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