Toyota jidosha kabushiki kaisha (20240186585). ALL SOLID STATE BATTERY AND METHOD FOR PRODUCING ALL SOLID STATE BATTERY simplified abstract

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ALL SOLID STATE BATTERY AND METHOD FOR PRODUCING ALL SOLID STATE BATTERY

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

KEISUKE Omori of Kariya-shi Aichi-ken (JP)

Yuhi Yamano of Obu-shi Aichi-ken (JP)

ALL SOLID STATE BATTERY AND METHOD FOR PRODUCING ALL SOLID STATE BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240186585 titled 'ALL SOLID STATE BATTERY AND METHOD FOR PRODUCING ALL SOLID STATE BATTERY

Simplified Explanation

The present disclosure describes an all solid-state battery with a cathode active material layer, an anode active material layer containing a Si-based anode active material, and a solid electrolyte layer between the cathode and anode layers. The anode layer includes a void in a specific region surrounding the surface of the Si-based material, with a void ratio of 10% to 70%.

  • Si-based anode active material layer with voids
  • Void ratio in the specific region is between 10% and 70%

Potential Applications

The technology described in this patent application could be applied in:

  • Electric vehicles
  • Portable electronic devices
  • Energy storage systems

Problems Solved

This technology addresses the following issues:

  • Reducing confining pressure in solid-state batteries
  • Enhancing battery performance and efficiency

Benefits

The benefits of this technology include:

  • Improved battery stability
  • Increased energy density
  • Longer battery lifespan

Potential Commercial Applications

The potential commercial applications of this technology could be seen in:

  • Battery manufacturing industry
  • Electric vehicle market
  • Consumer electronics sector

Possible Prior Art

One possible prior art related to this technology is the use of voids in anode materials to improve battery performance. Research has been conducted on incorporating voids in battery components to enhance overall efficiency and stability.

Unanswered Questions

How does the void ratio affect the performance of the battery?

The void ratio in the specific region surrounding the Si-based anode material is crucial for the battery's overall performance. A higher void ratio may lead to improved battery efficiency, but the exact relationship needs further investigation.

What manufacturing processes are required to create the voids in the anode material?

The method of creating voids in the anode material, especially in the specific region surrounding the Si-based material, is essential for the successful implementation of this technology. Further details on the manufacturing processes involved would be beneficial for understanding the practical application of this innovation.


Original Abstract Submitted

a main object of the present disclosure is to provide an all solid state battery capable of reducing a confining pressure. the present disclosure achieves the object by providing an all solid state battery comprising a cathode active material layer, an anode active material layer including a si based anode active material, and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer, the anode active material layer includes a void in a region a that is a region of 0.3 �m surrounding a surface of the si based anode active material, a void ratio in the region a is 10% or more and 70% or less.

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