Journal
ACS APPLIED ENERGY MATERIALS
Volume 4, Issue 11, Pages 12688-12695Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c02413
Keywords
Na (3) V (2) (PO (4) ) (3); NASICON; cathodes; anodes; full cells; symmetric cells; degradation; sodium-ion batteries
Funding
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [390874152]
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Sodium-ion batteries have the potential to be a cost-efficient alternative to lithium-ion batteries. Na3V2(PO4)3/C (NVP/C) has been identified as a suitable electrode material that shows high cycling stability, whether used as an anode or cathode.
Sodium-ion batteries may develop into a cost-efficient alternative to lithium-ion batteries. Na3V2(PO4)3/C (NVP/C) is known to be a suitable electrode material for such batteries that can be used as an anode or cathode. Here, NVP/C-based electrodes were investigated in different cell configurations. The electrodes were cycled against the anode materials hard carbon, Sb/C, SnSb/C, and sodium metal. Furthermore, NVP versus NVP was investigated. When NVP/C is cycled against the other anode materials, the cells exhibit relatively poor reliability, but in NVP-NVP cells, a high cycling stability was observed and more than 1500 cycles with a capacity retention of 80% were achieved. This work demonstrates that common problems of Na and Na-ion cells result from the anode materials used and that NVP/C itself is very reliable both as an anode and cathode material.
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