20240030485. SULFIDE SOLID ELECTROLYTE MATERIAL, GAS-PHASE SYNTHESIS METHOD FOR MATERIALS THEREOF AND APPLICATION THEREOF simplified abstract (Tianmu Lake Institute of Advanced Energy Storage Technologies Co. Ltd)

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SULFIDE SOLID ELECTROLYTE MATERIAL, GAS-PHASE SYNTHESIS METHOD FOR MATERIALS THEREOF AND APPLICATION THEREOF

Organization Name

Tianmu Lake Institute of Advanced Energy Storage Technologies Co. Ltd

Inventor(s)

Fan Wu of Kunlun Street Liyang, Jiangsu (CN)

Pushun Lu of Beijing (CN)

Hong Li of Kunlun Street Liyang, Jiangsu (CN)

SULFIDE SOLID ELECTROLYTE MATERIAL, GAS-PHASE SYNTHESIS METHOD FOR MATERIALS THEREOF AND APPLICATION THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240030485 titled 'SULFIDE SOLID ELECTROLYTE MATERIAL, GAS-PHASE SYNTHESIS METHOD FOR MATERIALS THEREOF AND APPLICATION THEREOF

Simplified Explanation

The abstract describes a gas-phase synthesis method for a sulfide solid electrolyte material, as well as its application. The method involves weighing a lithium (Li) source and a metal (M) source in a defined ratio, where the M source is an oxide or sulfide of certain elements from the third to sixth period of the periodic table. The raw materials are mixed and placed into a furnace. A sulfur (S) source is added to a sulfur source gas generation device, and a carrier gas is used to perform gas washing on the furnace at a set ventilation rate. The furnace is then heated to 200-800°C at a set heating rate, while introducing the gas containing the S source at the set ventilation rate. After a set duration, the furnace is cooled to room temperature and the sulfide solid electrolyte is removed.

  • The gas-phase synthesis method involves weighing Li and M sources, mixing them, and placing them into a furnace.
  • A sulfur source is added to generate a sulfur source gas, and gas washing is performed on the furnace using a carrier gas.
  • The furnace is heated to a specific temperature range while introducing the gas containing the sulfur source.
  • After a certain duration, the furnace is cooled and the sulfide solid electrolyte is obtained.

Potential applications of this technology:

  • Solid-state batteries: The sulfide solid electrolyte material can be used as an electrolyte in solid-state batteries, which offer higher energy density, improved safety, and longer lifespan compared to traditional lithium-ion batteries.
  • Fuel cells: The sulfide solid electrolyte material can be utilized as an electrolyte in solid oxide fuel cells, enabling efficient conversion of chemical energy into electrical energy.

Problems solved by this technology:

  • Safety concerns: The use of sulfide solid electrolyte materials in batteries and fuel cells eliminates the risk of flammable liquid electrolytes, reducing the potential for accidents and fires.
  • Performance limitations: Sulfide solid electrolytes have higher ionic conductivity than traditional oxide-based electrolytes, leading to improved battery and fuel cell performance.

Benefits of this technology:

  • Enhanced battery performance: The use of sulfide solid electrolytes can result in higher energy density, faster charging rates, and longer cycle life in batteries.
  • Improved fuel cell efficiency: Sulfide solid electrolytes enable lower operating temperatures and higher power densities in fuel cells, leading to improved overall efficiency.


Original Abstract Submitted

a sulfide solid electrolyte material, a gas-phase synthesis method for materials thereof and an application thereof are disclosed. the gas-phase synthesis method comprises: weighing a li source and an m source according to a defined ratio, the m source being an oxide or sulfide of at least one of group 4, 5, 6, 13, 14 and 15 elements from the third period to the sixth period in the periodic table of elements; mixing and placing the mixed raw materials into a furnace; adding an s source into a sulfur source gas generation device; using a carrier gas, and performing gas washing on the furnace for a certain duration at a set ventilation rate; heating the furnace to 200-800� c. at a set heating rate in an environment in which the gas containing the s source is introduced at the set ventilation rate, keeping warm for a set duration, and then cooling to room temperature; and removing a sulfide solid electrolyte from the furnace.

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