18614919. ALL SOLID STATE BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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ALL SOLID STATE BATTERY

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Masato Kamiya of Toyota-shi (JP)

ALL SOLID STATE BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18614919 titled 'ALL SOLID STATE BATTERY

The abstract describes an all-solid-state battery with specific components and layers, including a cathode, an anode, a solid electrolyte layer, and an anode active material layer with a sulfide solid electrolyte.

  • Anode current collector reacts with the sulfide solid electrolyte at the open circuit potential of the anode active material.
  • The anode current collector has a coating layer containing lithium titanate on the surface of the anode active material layer.
  • The coating layer in plan view includes existence and non-existence portions in specified regions.
  • The existence portion is present in at least a part of the opposing region, while the non-existence portion is present in at least a part of the non-opposing region.

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

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

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

Commercial Applications: Title: "Innovative All-Solid-State Battery Technology for Enhanced Energy Storage" This technology can be utilized in electric vehicles, grid storage systems, and consumer electronics, leading to more efficient and safer energy storage solutions.

Questions about the technology: 1. How does the presence of lithium titanate in the coating layer impact the performance of the battery? 2. What are the potential challenges in scaling up the production of all-solid-state batteries for commercial applications?


Original Abstract Submitted

An all solid state battery includes a cathode, an anode, an opposing region, a non-opposing region, and a solid electrolyte layer, and an anode active material layer includes an anode active material, and a sulfide solid electrolyte, the anode current collector is a current collector that react with the sulfide solid electrolyte at an open circuit potential of the anode active material, the anode current collector includes a coating layer including lithium titanate, on a surface of the anode active material layer side, in plan view, the coating layer includes one or two or more of an existence portion and non-existence portion respectively, in the region specified by an outer edge of the anode current collector, and in plan view, the coating layer includes the existence portion in at least a part of the opposing region, and includes the non-existence portion in at least a part of the non-opposing region.

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