18617754. SULFIDE-BASED SOLID ELECTROLYTE AND METHOD FOR MANUFACTURING SAME simplified abstract (AGC Inc.)

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SULFIDE-BASED SOLID ELECTROLYTE AND METHOD FOR MANUFACTURING SAME

Organization Name

AGC Inc.

Inventor(s)

Naoki Fujii of Tokyo (JP)

Riku Kitamura of Tokyo (JP)

Jinsuke Miyake of Tokyo (JP)

Kosho Akatsuka of Tokyo (JP)

SULFIDE-BASED SOLID ELECTROLYTE AND METHOD FOR MANUFACTURING SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18617754 titled 'SULFIDE-BASED SOLID ELECTROLYTE AND METHOD FOR MANUFACTURING SAME

The present invention pertains to a sulfide solid electrolyte for use in lithium-ion secondary batteries, comprising an argyrodite crystal containing Li, P, S, and Ha (F, Cl, Br, and I). The electrolyte satisfies the relationships { (1/χ)×[S]+(1/χ)×[O]+(1/χ)×[Br]+(1/χ)×[Cl]+(1/χ)×[F]}≥0.33 and [S]+[O]+[Br]+[Cl]+[F]=1, where [S], [O], [Br], [Cl], and [F] are surface anion contents, and χ is the electronegativity thereof.

  • Key Features and Innovation:

- Sulfide solid electrolyte for lithium-ion batteries. - Contains an argyrodite crystal with specific elemental composition. - Satisfies specific relationships between anion contents and electronegativity.

  • Potential Applications:

- Lithium-ion secondary batteries. - Energy storage systems. - Portable electronic devices.

  • Problems Solved:

- Enhances battery performance. - Improves safety and stability. - Enables higher energy density.

  • Benefits:

- Longer battery life. - Faster charging capabilities. - Enhanced overall battery efficiency.

  • Commercial Applications:

- Battery manufacturing industry. - Electronics sector. - Renewable energy storage solutions.

  • Questions about Sulfide Solid Electrolyte:

1. How does the specific elemental composition of the argyrodite crystal contribute to the performance of lithium-ion batteries? - The elemental composition affects the conductivity and stability of the electrolyte, leading to improved battery performance.

2. What are the potential challenges in scaling up the production of sulfide solid electrolytes for commercial use? - Challenges may include cost-effectiveness, scalability of production processes, and ensuring consistent quality control.


Original Abstract Submitted

The present invention relates to a sulfide solid electrolyte to be used for a lithium-ion secondary battery. The sulfide solid electrolyte contains: an argyrodite crystal containing Li, P, S, and Ha (F, Cl, Br, and I). Relationships of {(1/χ)×[S]+(1/χ)×[O]+(1/χ)×[Br]+(1/χ)×[Cl]+(1/χ)×[F]}≤0.33 and [S]+[O]+[Br]+[Cl]+[F]=1 are satisfied, where [S], [O], [Br], [Cl], and [F]are surface anion contents, and χ is an electronegativity thereof.