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Shraer SD, Luchinin ND, Trussov IA, Aksyonov DA, Morozov AV, Ryazantsev SV, Iarchuk AR, Morozova PA, Nikitina VA, Stevenson KJ, Antipov EV, Abakumov AM, Fedotov SS. Development of vanadium-based polyanion positive electrode active materials for high-voltage sodium-based batteries. Nat Commun 2022; 13:4097. [PMID: 35835761 PMCID: PMC9283384 DOI: 10.1038/s41467-022-31768-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 07/01/2022] [Indexed: 12/03/2022] Open
Abstract
Polyanion compounds offer a playground for designing prospective electrode active materials for sodium-ion storage due to their structural diversity and chemical variety. Here, by combining a NaVPO4F composition and KTiOPO4-type framework via a low-temperature (e.g., 190 °C) ion-exchange synthesis approach, we develop a high-capacity and high-voltage positive electrode active material. When tested in a coin cell configuration in combination with a Na metal negative electrode and a NaPF6-based non-aqueous electrolyte solution, this cathode active material enables a discharge capacity of 136 mAh g-1 at 14.3 mA g-1 with an average cell discharge voltage of about 4.0 V. Furthermore, a specific discharge capacity of 123 mAh g-1 at 5.7 A g-1 is also reported for the same cell configuration. Through ex situ and operando structural characterizations, we also demonstrate that the reversible Na-ion storage at the positive electrode occurs mostly via a solid-solution de/insertion mechanism.
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Affiliation(s)
- Semyon D Shraer
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russian Federation
| | - Nikita D Luchinin
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Ivan A Trussov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Dmitry A Aksyonov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Anatoly V Morozov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Sergey V Ryazantsev
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russian Federation
| | - Anna R Iarchuk
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Polina A Morozova
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Victoria A Nikitina
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russian Federation
| | - Keith J Stevenson
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Evgeny V Antipov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russian Federation
| | - Artem M Abakumov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation
| | - Stanislav S Fedotov
- Skoltech Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205, Moscow, Russian Federation.
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