Low-Cost Preparation of High-Performance Na-B-H-S Electrolyte for All-Solid-State Sodium-Ion Batteries

All-solid-state sodium-ion batteries have the potential to improve safety and mitigate the cost bottlenecks of the current lithium-ion battery system if a high-performance electrolyte with cost advantages can be easily synthesized. In this study, a one-step dehydrogenation-assisted strategy to synth...

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Bibliographic Details
Published in:Advanced science 2023-11, Vol.10 (32), p.e2302618-e2302618
Main Authors: Zhou, Wei, Song, Changsheng, Li, Shuyang, Liu, Miao, He, Huiwen, Yang, Shaoyu, Xie, Jin, Wang, Fei, Fang, Fang, Sun, Dalin, Zhao, Jie, Song, Yun
Format: Article
Language:English
Subjects:
all‐solid‐state batteries
Chemical reactions
Electrolytes
Energy consumption
Lithium
low‐cost
Nanocomposites
Raw materials
Sodium
solid electrolytes
superionic conductors
Temperature
thioborate
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Summary:All-solid-state sodium-ion batteries have the potential to improve safety and mitigate the cost bottlenecks of the current lithium-ion battery system if a high-performance electrolyte with cost advantages can be easily synthesized. In this study, a one-step dehydrogenation-assisted strategy to synthesize the novel thio-borohydride (Na-B-H-S) electrolyte is proposed, in which both raw material cost and preparation temperature are significantly reduced. By using sodium borohydride (NaBH ) instead of B as a starting material, B atoms can be readily released from NaBH with much less energy and thus became more available to generate thio-borohydride. The synthesized Na-B-H-S (NaBH /Na-B-S) electrolyte exhibits excellent compatibility with current cathode materials, including FeF (1.0-4.5 V), Na V (PO ) (2.0-4.0 V), and S (1.2-2.8 V). This novel Na-B-H-S electrolyte will take a place in mainstream electrolytes because of its advantages in preparation, cost, and compatibility with various cathode materials.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202302618