Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors
In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structur...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Guo, Ju [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
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2020transfer abstract |
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12 |
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| Übergeordnetes Werk: |
Enthalten in: External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs - Dedhia, Kavita ELSEVIER, 2018, official journal of the International Association for Hydrogen Energy, New York, NY [u.a.] |
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volume:45 ; year:2020 ; number:58 ; day:27 ; month:11 ; pages:33016-33027 ; extent:12 |
| Links: |
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| DOI / URN: |
10.1016/j.ijhydene.2020.09.049 |
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| 520 | |a In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. | ||
| 520 | |a In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. | ||
| 650 | 7 | |a Lithium iron phosphate/carbon |2 Elsevier | |
| 650 | 7 | |a Secondary morphology |2 Elsevier | |
| 650 | 7 | |a Dihydrate iron phosphate |2 Elsevier | |
| 650 | 7 | |a Property |2 Elsevier | |
| 700 | 1 | |a Liang, Chengbo |4 oth | |
| 700 | 1 | |a Cao, Jianxin |4 oth | |
| 700 | 1 | |a Jia, Shuangzhu |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Dedhia, Kavita ELSEVIER |t External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs |d 2018 |d official journal of the International Association for Hydrogen Energy |g New York, NY [u.a.] |w (DE-627)ELV000127019 |
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10.1016/j.ijhydene.2020.09.049 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV052091783 (ELSEVIER)S0360-3199(20)33466-2 DE-627 ger DE-627 rakwb eng 610 VZ 44.94 bkl Guo, Ju verfasserin aut Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors 2020transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. Lithium iron phosphate/carbon Elsevier Secondary morphology Elsevier Dihydrate iron phosphate Elsevier Property Elsevier Liang, Chengbo oth Cao, Jianxin oth Jia, Shuangzhu oth Enthalten in Elsevier Dedhia, Kavita ELSEVIER External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs 2018 official journal of the International Association for Hydrogen Energy New York, NY [u.a.] (DE-627)ELV000127019 volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 https://doi.org/10.1016/j.ijhydene.2020.09.049 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.94 Hals-Nasen-Ohrenheilkunde VZ AR 45 2020 58 27 1127 33016-33027 12 |
| spelling |
10.1016/j.ijhydene.2020.09.049 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV052091783 (ELSEVIER)S0360-3199(20)33466-2 DE-627 ger DE-627 rakwb eng 610 VZ 44.94 bkl Guo, Ju verfasserin aut Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors 2020transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. Lithium iron phosphate/carbon Elsevier Secondary morphology Elsevier Dihydrate iron phosphate Elsevier Property Elsevier Liang, Chengbo oth Cao, Jianxin oth Jia, Shuangzhu oth Enthalten in Elsevier Dedhia, Kavita ELSEVIER External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs 2018 official journal of the International Association for Hydrogen Energy New York, NY [u.a.] (DE-627)ELV000127019 volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 https://doi.org/10.1016/j.ijhydene.2020.09.049 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.94 Hals-Nasen-Ohrenheilkunde VZ AR 45 2020 58 27 1127 33016-33027 12 |
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10.1016/j.ijhydene.2020.09.049 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV052091783 (ELSEVIER)S0360-3199(20)33466-2 DE-627 ger DE-627 rakwb eng 610 VZ 44.94 bkl Guo, Ju verfasserin aut Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors 2020transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. Lithium iron phosphate/carbon Elsevier Secondary morphology Elsevier Dihydrate iron phosphate Elsevier Property Elsevier Liang, Chengbo oth Cao, Jianxin oth Jia, Shuangzhu oth Enthalten in Elsevier Dedhia, Kavita ELSEVIER External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs 2018 official journal of the International Association for Hydrogen Energy New York, NY [u.a.] (DE-627)ELV000127019 volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 https://doi.org/10.1016/j.ijhydene.2020.09.049 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.94 Hals-Nasen-Ohrenheilkunde VZ AR 45 2020 58 27 1127 33016-33027 12 |
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10.1016/j.ijhydene.2020.09.049 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV052091783 (ELSEVIER)S0360-3199(20)33466-2 DE-627 ger DE-627 rakwb eng 610 VZ 44.94 bkl Guo, Ju verfasserin aut Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors 2020transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. Lithium iron phosphate/carbon Elsevier Secondary morphology Elsevier Dihydrate iron phosphate Elsevier Property Elsevier Liang, Chengbo oth Cao, Jianxin oth Jia, Shuangzhu oth Enthalten in Elsevier Dedhia, Kavita ELSEVIER External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs 2018 official journal of the International Association for Hydrogen Energy New York, NY [u.a.] (DE-627)ELV000127019 volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 https://doi.org/10.1016/j.ijhydene.2020.09.049 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.94 Hals-Nasen-Ohrenheilkunde VZ AR 45 2020 58 27 1127 33016-33027 12 |
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10.1016/j.ijhydene.2020.09.049 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001208.pica (DE-627)ELV052091783 (ELSEVIER)S0360-3199(20)33466-2 DE-627 ger DE-627 rakwb eng 610 VZ 44.94 bkl Guo, Ju verfasserin aut Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors 2020transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. Lithium iron phosphate/carbon Elsevier Secondary morphology Elsevier Dihydrate iron phosphate Elsevier Property Elsevier Liang, Chengbo oth Cao, Jianxin oth Jia, Shuangzhu oth Enthalten in Elsevier Dedhia, Kavita ELSEVIER External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs 2018 official journal of the International Association for Hydrogen Energy New York, NY [u.a.] (DE-627)ELV000127019 volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 https://doi.org/10.1016/j.ijhydene.2020.09.049 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.94 Hals-Nasen-Ohrenheilkunde VZ AR 45 2020 58 27 1127 33016-33027 12 |
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Enthalten in External auditory canal: Inferior, posterior-inferior, and anterior canal wall overhangs New York, NY [u.a.] volume:45 year:2020 number:58 day:27 month:11 pages:33016-33027 extent:12 |
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Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. 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synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors |
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Synthesis and electrochemical performance of lithium iron phosphate/carbon composites based on controlling the secondary morphology of precursors |
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In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. |
| abstractGer |
In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. |
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In this study, dihydrate iron phosphates with primary and secondary morphology were first prepared with ferric sulfate and phosphoric acid as the major raw materials, which were then taken as the precursor to prepare carbon-coated lithium iron phosphate composite material. Results show that structures of synthesized lithium iron phosphate/Carbon materials are the same, however, the morphologies are significantly different, especially the one synthesized with the secondary morphology iron phosphate precursor. Thus, the particle size, specific surface area and carbon coating effect of the material are changed accordingly, which can affect the electrochemical performance of the composite. The lithium iron phosphate/Carbon synthesized with spherical aggregation morphology (secondary morphology) iron phosphate precursor showed the best electrochemical property. At 0.5C and 10C rates, the first specific discharge capacity is 155.6 and 103.8 mA h/g respectively, which is better than that prepared with cabbage shape aggregation morphology (secondary morphology) and near-spherical simplex (primary morphology), increasing 1.38%, 1.37% and 3.58%, 9.05%, respectively. This research result provided new thoughts to further improve the electrochemical property of lithium iron phosphate/Carbon composites. |
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