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Article: P3-Na0.45Ni0.2Mn0.8O2/Na2SeO4 Heterostructure Enabling Long-Life and High-Rate Sodium-Ion Batteries

TitleP3-Na0.45Ni0.2Mn0.8O2/Na2SeO4 Heterostructure Enabling Long-Life and High-Rate Sodium-Ion Batteries
Authors
Keywordscathodes
heterostructures
high conductivity
P3 oxide
sodium-ion batteries
Issue Date24-Sep-2023
PublisherWiley
Citation
Advanced Energy Materials, 2023, v. 13, n. 42 How to Cite?
Abstract

Sodium-based layered oxide cathodes are competitive candidates for commercial sodium-ion batteries owing to their high theoretical capacities, low costs, and simple synthesis. P3-type layered oxides with large open channels enable fast Na+ transport and hence good rate performance. However, the lower crystal symmetry of P3-type oxides and variation of Na+ contents in the Na layer during desodiation/sodiation lead to large electrostatic repulsion changes between TMO2 slabs (TM=Transition Metal), resulting in irreversible phase transitions, and fast performance degradation. Herein, a potential Na+ conductor Na2SeO4 is first found that it can be easily in situ grown on P3-Na0.45Ni0.2Mn0.8O2 to form a novel heterostructure P3-Na0.45Ni0.2Mn0.8O2/Na2SeO4. The synergy between P3-Na0.45Ni0.2Mn0.8O2 and Na2SeO4 functions in promoting Na+ diffusion and suppressing P3-O3 phase transitions upon deep sodiation, which results in recorded high-rate capability (68.2% capacity retention with retained 83.9 mAh g-1 capacity at 6400 mA g(-1)) and superior cycling stability (capacity retention 75% after 1000 cycles) among all reported P3-type cathodes. Thus, it is believed that this novel heterostructure design opens a new pathway to promote practical applications for layered oxide cathodes in sodium-ion batteries.


Persistent Identifierhttp://hdl.handle.net/10722/339649
ISSN
2023 Impact Factor: 24.4
2023 SCImago Journal Rankings: 8.748
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSong, TY-
dc.contributor.authorWang, CC-
dc.contributor.authorKang, L-
dc.contributor.authorYao, WJ-
dc.contributor.authorWang, HY-
dc.contributor.authorChen, HG-
dc.contributor.authorLiu, Q-
dc.contributor.authorLu, Y-
dc.contributor.authorGuan, ZQ-
dc.contributor.authorZhu, AQ-
dc.contributor.authorKang, TX-
dc.contributor.authorTang, YB-
dc.contributor.authorLee, CS -
dc.date.accessioned2024-03-11T10:38:15Z-
dc.date.available2024-03-11T10:38:15Z-
dc.date.issued2023-09-24-
dc.identifier.citationAdvanced Energy Materials, 2023, v. 13, n. 42-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10722/339649-
dc.description.abstract<p>Sodium-based layered oxide cathodes are competitive candidates for commercial sodium-ion batteries owing to their high theoretical capacities, low costs, and simple synthesis. P3-type layered oxides with large open channels enable fast Na+ transport and hence good rate performance. However, the lower crystal symmetry of P3-type oxides and variation of Na+ contents in the Na layer during desodiation/sodiation lead to large electrostatic repulsion changes between TMO2 slabs (TM=Transition Metal), resulting in irreversible phase transitions, and fast performance degradation. Herein, a potential Na+ conductor Na2SeO4 is first found that it can be easily in situ grown on P3-Na0.45Ni0.2Mn0.8O2 to form a novel heterostructure P3-Na0.45Ni0.2Mn0.8O2/Na2SeO4. The synergy between P3-Na0.45Ni0.2Mn0.8O2 and Na2SeO4 functions in promoting Na+ diffusion and suppressing P3-O3 phase transitions upon deep sodiation, which results in recorded high-rate capability (68.2% capacity retention with retained 83.9 mAh g-1 capacity at 6400 mA g(-1)) and superior cycling stability (capacity retention 75% after 1000 cycles) among all reported P3-type cathodes. Thus, it is believed that this novel heterostructure design opens a new pathway to promote practical applications for layered oxide cathodes in sodium-ion batteries.</p>-
dc.languageeng-
dc.publisherWiley-
dc.relation.ispartofAdvanced Energy Materials-
dc.subjectcathodes-
dc.subjectheterostructures-
dc.subjecthigh conductivity-
dc.subjectP3 oxide-
dc.subjectsodium-ion batteries-
dc.titleP3-Na0.45Ni0.2Mn0.8O2/Na2SeO4 Heterostructure Enabling Long-Life and High-Rate Sodium-Ion Batteries-
dc.typeArticle-
dc.identifier.doi10.1002/aenm.202302393-
dc.identifier.scopuseid_2-s2.0-85171859171-
dc.identifier.volume13-
dc.identifier.issue42-
dc.identifier.eissn1614-6840-
dc.identifier.isiWOS:001070624500001-
dc.publisher.placeWEINHEIM-
dc.identifier.issnl1614-6832-

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