Toyota jidosha kabushiki kaisha (20240222706). ALL-SOLID-STATE SECONDARY BATTERY simplified abstract

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ALL-SOLID-STATE SECONDARY BATTERY

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Ryuto Sakamoto of Okazaki-shi Aichi-ken (JP)

ALL-SOLID-STATE SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240222706 titled 'ALL-SOLID-STATE SECONDARY BATTERY

The all-solid-state secondary battery described in the patent application consists of several layers stacked in a specific order, including a positive electrode collector layer, a positive electrode layer, a solid electrolyte layer, a negative electrode layer, and a negative electrode collector layer.

  • The positive electrode layer contains a positive electrode active material layer and an insulating layer surrounding the edges of the positive electrode active material layer.
  • When viewed from the stacking direction, the outer edges of the positive electrode active material layer on the solid electrolyte layer side are positioned further inward than the outer edges on the positive electrode collector layer side.
  • The outer edges of the positive electrode collector layer are also positioned further inward than the outer edges of the positive electrode active material layer on the positive electrode collector layer side.

Potential Applications: - Energy storage systems - Electric vehicles - Portable electronic devices

Problems Solved: - Enhanced battery performance - Improved safety due to the solid-state design

Benefits: - Higher energy density - Longer cycle life - Safer operation

Commercial Applications: Title: Advanced Solid-State Battery Technology for Energy Storage Solutions This technology can be utilized in various industries such as automotive, consumer electronics, and renewable energy storage systems, offering improved performance and safety features.

Questions about the technology: 1. How does the positioning of the layers in the all-solid-state secondary battery contribute to its performance? 2. What advantages does the insulating layer provide in the positive electrode layer of the battery?


Original Abstract Submitted

the all-solid-state secondary battery of the disclosure comprises a positive electrode collector layer, a positive electrode layer, a solid electrolyte layer, a negative electrode layer and a negative electrode collector layer stacked in that order, wherein the positive electrode layer has a positive electrode active material layer and an insulating layer disposed around the perimeter edges of the positive electrode active material layer, and when the all-solid-state secondary battery is viewed from the stacking direction, the outer edges of the positive electrode active material layer on the solid electrolyte layer side are further inward than the outer edges of the positive electrode active material layer on the positive electrode collector layer side, and the outer edges of the positive electrode collector layer are further inward than the outer edges of the positive electrode active material layer on the positive electrode collector layer side.

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