Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials
Abstract Na+ superionic conductor (NASICON)‐structured Na4VMn(PO4)3 (NVMP) possesses stable cycling performance at 2.5–3.8 V by replacing V with lower cost Mn but suffers rapid capacity decay when further widening the voltage to 2.5–4.2 V, owing to a less stable V4+/V5+ redox couple. Herein, to stab...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-03-01
|
| Series: | Battery Energy |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/bte2.20220042 |
| _version_ | 1827986739800571904 |
|---|---|
| author | Wei Li Junpeng Li Ranran Li Xiaolei Li Jian Gao Shu‐Meng Hao Weidong Zhou |
| author_facet | Wei Li Junpeng Li Ranran Li Xiaolei Li Jian Gao Shu‐Meng Hao Weidong Zhou |
| author_sort | Wei Li |
| collection | DOAJ |
| description | Abstract Na+ superionic conductor (NASICON)‐structured Na4VMn(PO4)3 (NVMP) possesses stable cycling performance at 2.5–3.8 V by replacing V with lower cost Mn but suffers rapid capacity decay when further widening the voltage to 2.5–4.2 V, owing to a less stable V4+/V5+ redox couple. Herein, to stabilize the V4+/V5+ couple and improve the reversibility, a series of carbon‐coated NVMP (NVMP@C) with different V/Mn ratios are compared, among which, Na3.25V1.75Mn0.25(PO4)3@C delivers an additional reversible V4+/V5+ capacity of 7 mAh g−1 at the voltage of 3.9–4.2 V. Based on this, to further activate the capacity of V4+/V5+, Al‐doped Na3.25V1.75−yMn0.25Aly(PO4)3 structures are synthesized. When 0.5 Al is doped, 15 mAh g−1 capacity corresponding to V4+/V5+ can be released. In addition, it is found that the activation of V4+/V5+ is not conducive to electrochemical reversibility and C‐rate performance, owing to the shrinkage of the whole framework structure with the oxidization of V4+ to V5+. |
| first_indexed | 2024-04-09T23:36:17Z |
| format | Article |
| id | doaj.art-7eb498454fd04b4c86435a1e05c4f236 |
| institution | Directory Open Access Journal |
| issn | 2768-1696 |
| language | English |
| last_indexed | 2024-04-09T23:36:17Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Battery Energy |
| spelling | doaj.art-7eb498454fd04b4c86435a1e05c4f2362023-03-20T10:47:57ZengWileyBattery Energy2768-16962023-03-0122n/an/a10.1002/bte2.20220042Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materialsWei Li0Junpeng Li1Ranran Li2Xiaolei Li3Jian Gao4Shu‐Meng Hao5Weidong Zhou6State Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaState Key Laboratory of Organic‐Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing ChinaAbstract Na+ superionic conductor (NASICON)‐structured Na4VMn(PO4)3 (NVMP) possesses stable cycling performance at 2.5–3.8 V by replacing V with lower cost Mn but suffers rapid capacity decay when further widening the voltage to 2.5–4.2 V, owing to a less stable V4+/V5+ redox couple. Herein, to stabilize the V4+/V5+ couple and improve the reversibility, a series of carbon‐coated NVMP (NVMP@C) with different V/Mn ratios are compared, among which, Na3.25V1.75Mn0.25(PO4)3@C delivers an additional reversible V4+/V5+ capacity of 7 mAh g−1 at the voltage of 3.9–4.2 V. Based on this, to further activate the capacity of V4+/V5+, Al‐doped Na3.25V1.75−yMn0.25Aly(PO4)3 structures are synthesized. When 0.5 Al is doped, 15 mAh g−1 capacity corresponding to V4+/V5+ can be released. In addition, it is found that the activation of V4+/V5+ is not conducive to electrochemical reversibility and C‐rate performance, owing to the shrinkage of the whole framework structure with the oxidization of V4+ to V5+.https://doi.org/10.1002/bte2.20220042cathode materialsdopingNASICONsodium vanadium manganese phosphatesodium‐ion batteries |
| spellingShingle | Wei Li Junpeng Li Ranran Li Xiaolei Li Jian Gao Shu‐Meng Hao Weidong Zhou Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials Battery Energy cathode materials doping NASICON sodium vanadium manganese phosphate sodium‐ion batteries |
| title | Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials |
| title_full | Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials |
| title_fullStr | Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials |
| title_full_unstemmed | Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials |
| title_short | Study on sodium storage properties of manganese‐doped sodium vanadium phosphate cathode materials |
| title_sort | study on sodium storage properties of manganese doped sodium vanadium phosphate cathode materials |
| topic | cathode materials doping NASICON sodium vanadium manganese phosphate sodium‐ion batteries |
| url | https://doi.org/10.1002/bte2.20220042 |
| work_keys_str_mv | AT weili studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT junpengli studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT ranranli studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT xiaoleili studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT jiangao studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT shumenghao studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials AT weidongzhou studyonsodiumstoragepropertiesofmanganesedopedsodiumvanadiumphosphatecathodematerials |