18206672. BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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BATTERY

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Yuka Nagata of Toyota-shi Aichi-ken (JP)

BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18206672 titled 'BATTERY

Simplified Explanation

The patent application describes a battery design with a unique laminate film structure that covers the outer edges of the current collector terminal and the electrode body, with a welded portion at the corner of the current collector terminal.

  • The battery includes an electrode body, a current collector terminal, and a laminate film.
  • The current collector terminal's outer edge is positioned on the inner side of the electrode body's outer edge.
  • The laminate film covers the outer edges of the current collector terminal and the electrode body.
  • A welded portion at the corner of the current collector terminal secures the inner surfaces of the laminate film.
  • The laminate film contains at least a metal layer, with a first resin layer between the metal layers and a second resin layer between the metal layer and the current collector terminal.
  • The thickness of the first resin layer (T) and the second resin layer (T) must satisfy 0.25≤T/T.
      1. Potential Applications
  • Electric vehicles
  • Portable electronic devices
  • Energy storage systems
      1. Problems Solved
  • Enhanced durability and reliability of batteries
  • Improved safety features with the welded portion in the laminate film
      1. Benefits
  • Increased battery performance and longevity
  • Reduced risk of short circuits and other safety hazards
  • Potential for use in various electronic devices and energy storage applications


Original Abstract Submitted

A battery includes: an electrode body; a current collector terminal; and a laminate film. An outer edge of the current collector terminal is located on an inner side of an outer edge of the electrode body. The laminate film is disposed so as to cover surfaces constituting the outer edges of the current collector terminal and the electrode body. A welded portion in which inner surfaces of the laminate film are welded to each other is disposed at a corner portion of the current collector terminal. The laminate film includes at least a metal layer. In the welded portion, a first resin layer is disposed between the metal layers facing each other. A second resin layer is disposed between the metal layer and the current collector terminal. A thickness of the first resin layer Tand a thickness of the second resin layer Tsatisfy 0.25≤T/T.

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