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US 2025/0353744 A1Published application
Solvent-Free, Low Temperature Synthesis of Sulfide-type Sodium-Ion Conductors
OwnerHui Wang, Badri Narayanana, +1inventors
InventorsHui Wang, Badri Narayanana,, Selim Halacoglu,
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Abstract
Solvent-free methods are provided for synthesizing NSS ionic conductors including but not limited to Se-doped and fluorine-doped NSS ionic conductors, which can be used as solid electrolytes in electrochemical storage devices and providing high ionic conductivity at room temperature and other advantages.
Claims21
A method for synthesizing an NSS ionic conductor for use as a solid electrolyte, comprising:
- mixing without solvent a group of precursors comprising sodium sulfide (Na2S) hydrate, an antimony source, and a sulfur source each at a molar ratio greater than zero and a dopant at a molar ratio of zero or greater to form an intermediate product hydrate;
- and
- after mixing, removing hydrate water from the intermediate product hydrate using at least one of added energy or vacuum to form a crystalline product.
Dependencies are inferred from the claim text.