Toyota jidosha kabushiki kaisha (20240258514). METHOD FOR PRODUCING ACTIVE MATERIAL simplified abstract

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METHOD FOR PRODUCING ACTIVE MATERIAL

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Takayuki Uchiyama of Susono-shi (JP)

Shizuka Masuoka of Atsugi-shi (JP)

Tetsuya Waseda of Susono-shi (JP)

METHOD FOR PRODUCING ACTIVE MATERIAL - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240258514 titled 'METHOD FOR PRODUCING ACTIVE MATERIAL

    • Simplified Explanation:**

The method described in the patent application focuses on producing an active material with reduced volume variation during charge/discharge cycles. This is achieved by preparing a LiSi precursor containing Si and Li elements, and then forming a void by extracting the Li element using a solvent. The LiSi precursor contains a crystal phase of LiSi.

    • Key Features and Innovation:**

- Method for producing an active material with reduced volume variation during charge/discharge cycles - Preparation of LiSi precursor containing Si and Li elements - Formation of a void by extracting Li element using a solvent - Inclusion of a crystal phase of LiSi in the precursor

    • Potential Applications:**

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

    • Problems Solved:**

- Volume variation during charge/discharge cycles - Stability issues in active materials - Performance degradation in batteries

    • Benefits:**

- Improved battery performance - Enhanced stability of active materials - Extended battery lifespan

    • Commercial Applications:**

Title: Advanced Active Material Production Method for Lithium-ion Batteries This technology can be utilized in the production of lithium-ion batteries for various applications such as electric vehicles, consumer electronics, and renewable energy storage systems. The method offers improved battery performance, stability, and longevity, making it a valuable innovation in the energy storage industry.

    • Questions about the Technology:**

1. What are the potential drawbacks of the void forming step in the production process? 2. How does the extraction of Li element contribute to reducing volume variation in the active material?


Original Abstract Submitted

a main object of the present disclosure is to provide a method for producing an active material wherein a volume variation due to charge/discharge is reduced. the present disclosure achieves the object by providing a method for producing an active material, the method comprising steps of: a preparing step of preparing a lisi precursor including a si element and a li element, and a void forming step of forming a void by extracting the li element from the lisi precursor by using a li extracting solvent, and the lisi precursor includes a crystal phase of lisi.