Toyota jidosha kabushiki kaisha (20240234703). ALL SOLID STATE BATTERY simplified abstract

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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 20240234703 titled 'ALL SOLID STATE BATTERY

The abstract describes an all-solid-state battery with specific features related to the anode current collector and coating layer composition.

  • The battery includes a cathode, an anode, an opposing region, a non-opposing region, and a solid electrolyte layer.
  • The anode active material layer contains an anode active material and a sulfide solid electrolyte.
  • The 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 with lithium titanate on the surface of the anode active material layer.
  • The coating layer in plan view includes an existence portion and non-existence portion within 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 - Increased energy density

Benefits: - Longer battery life - Faster charging capabilities - Reduced risk of thermal runaway

Commercial Applications: - Battery manufacturing industry - Electric vehicle market - Consumer electronics sector

Questions about the technology: 1. How does the composition of the anode current collector impact battery performance? 2. What are the advantages of using a solid-state electrolyte in this battery design?

Frequently Updated Research: - Ongoing studies on optimizing the coating layer composition for improved battery efficiency and longevity.


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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