Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction
Abstract Potassium‐ion batteries (KIB) have similar energy storage mechanism with lithium‐ion battery, but the potassium (K) resource is rich, which shows great potential for large‐scale energy storage system. Recently, the anode materials of KIB studied mainly include carbon materials, transition m...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-08-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202202550 |
| _version_ | 1797819773713645568 |
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| author | Jianyi Wang Menghui Chen Zhida Chen Zicong Lu Liping Si |
| author_facet | Jianyi Wang Menghui Chen Zhida Chen Zicong Lu Liping Si |
| author_sort | Jianyi Wang |
| collection | DOAJ |
| description | Abstract Potassium‐ion batteries (KIB) have similar energy storage mechanism with lithium‐ion battery, but the potassium (K) resource is rich, which shows great potential for large‐scale energy storage system. Recently, the anode materials of KIB studied mainly include carbon materials, transition metal oxides, and alloy materials. The amorphous hard carbon shows the best comprehensive performance, but its intercalation potential is close to 0 V (versus K+/K), which is easy to cause K dendrite and brings security risks. The oxide materials have high capacity but high intercalation potential, low first cycle efficiency, and unstable cycle. Here, based on the understanding of the K intercalation mechanism of vanadium oxides, a novel zero strain anode material with layered structure of dual‐ions (Na+/K+) is designed (NaK(VO3)2V2O5). The introduction of Na/K ion contributed to the transmission and further stabilized the structure. It has an excellent rate performance (10 A g−1, up to 25 000th cycle), and its special K storage mechanism and zero‐strain characteristics are revealed for the first time by ex situ scanning electron microscope, X‐ray powder diffraction, X‐ray photoelectron spectroscopy, and other test methods. Considering the excellent performance endowed by these unique inherent properties, NaK(VO3)2V2O5 shows great potential for commercial anode materials and may promote the innovation of KIB. |
| first_indexed | 2024-03-13T09:27:32Z |
| format | Article |
| id | doaj.art-c495207c4efb47909b022140c152dfab |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-13T09:27:32Z |
| publishDate | 2022-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-c495207c4efb47909b022140c152dfab2023-05-26T08:56:00ZengWileyAdvanced Science2198-38442022-08-01923n/an/a10.1002/advs.202202550Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and ExtractionJianyi Wang0Menghui Chen1Zhida Chen2Zicong Lu3Liping Si4School of Materials Science and Hydrogen Energy Foshan University Foshan 528000 P. R. ChinaInstitute for Sustainable Energy/College of Sciences Shanghai University Shanghai 200444 P. R. ChinaSchool of Materials Science and Hydrogen Energy Foshan University Foshan 528000 P. R. ChinaSchool of Materials Science and Hydrogen Energy Foshan University Foshan 528000 P. R. ChinaSchool of Materials Science and Hydrogen Energy Foshan University Foshan 528000 P. R. ChinaAbstract Potassium‐ion batteries (KIB) have similar energy storage mechanism with lithium‐ion battery, but the potassium (K) resource is rich, which shows great potential for large‐scale energy storage system. Recently, the anode materials of KIB studied mainly include carbon materials, transition metal oxides, and alloy materials. The amorphous hard carbon shows the best comprehensive performance, but its intercalation potential is close to 0 V (versus K+/K), which is easy to cause K dendrite and brings security risks. The oxide materials have high capacity but high intercalation potential, low first cycle efficiency, and unstable cycle. Here, based on the understanding of the K intercalation mechanism of vanadium oxides, a novel zero strain anode material with layered structure of dual‐ions (Na+/K+) is designed (NaK(VO3)2V2O5). The introduction of Na/K ion contributed to the transmission and further stabilized the structure. It has an excellent rate performance (10 A g−1, up to 25 000th cycle), and its special K storage mechanism and zero‐strain characteristics are revealed for the first time by ex situ scanning electron microscope, X‐ray powder diffraction, X‐ray photoelectron spectroscopy, and other test methods. Considering the excellent performance endowed by these unique inherent properties, NaK(VO3)2V2O5 shows great potential for commercial anode materials and may promote the innovation of KIB.https://doi.org/10.1002/advs.202202550anode materialshigh stable abilitylong‐term cyclingpotassium‐ion batteries |
| spellingShingle | Jianyi Wang Menghui Chen Zhida Chen Zicong Lu Liping Si Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction Advanced Science anode materials high stable ability long‐term cycling potassium‐ion batteries |
| title | Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction |
| title_full | Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction |
| title_fullStr | Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction |
| title_full_unstemmed | Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction |
| title_short | Retracted: Dual‐Ion Stabilized Layered Structure of OVO for Zero‐Strain Potassium Insertion and Extraction |
| title_sort | retracted dual ion stabilized layered structure of ovo for zero strain potassium insertion and extraction |
| topic | anode materials high stable ability long‐term cycling potassium‐ion batteries |
| url | https://doi.org/10.1002/advs.202202550 |
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