AI Article Synopsis
- The all-solid-state sodium battery shows potential for energy storage, but faces challenges like electrochemical instability and low ionic conductivity of the solid electrolyte.
- Structural modifications in the NaSbS solid electrolyte, particularly incorporating P and O elements, significantly improved stability and conductivity, achieving 260 hours of stability at 0.1 mA cm and a room temperature conductivity of 3.82 mS cm.
- This design strategy is key for developing sodium ion solid-state batteries with high energy density and longevity, emphasizing the importance of the solid electrolyte interface's stability.
Article Abstract
The all-solid-state sodium battery has emerged as a promising candidate for energy storage. However, the limited electrochemical stability of the solid electrolyte, particularly in the presence of Na metal at the anode, along with low ionic conductivity, hinders its widespread application. In this work, the design of P and O elements in NaSbS solid electrolyte was investigated through a series of structural tests and characterizations. The electrochemical stability was remarkably improved in the Na/NaSbPSO/Na battery, exhibiting a stability of 260 h under a current of 0.1 mA cm. Additionally, the room temperature conductivity of NaSbPSO was enhanced to 3.82 mS cm, maintaining a value comparable to commercial standards. The proposed design strategy provides an approach for developing sodium ion solid-state batteries with high energy density and long lifespan. The stability of the solid electrolyte interface at the Na | solid electrolyte interface proves critical for the successful assembly of all-solid-state sodium ion batteries.
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| http://dx.doi.org/10.1016/j.jcis.2023.09.013 | DOI Listing |
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