Toyota jidosha kabushiki kaisha (20240120627). POWER STORAGE DEVICE simplified abstract

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POWER STORAGE DEVICE

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Hiroyuki Nakayama of Okazaki-shi (JP)

Yuki Okamoto of Kariya-shi (JP)

Fumihiko Ishiguro of Kariya-shi (JP)

Takayuki Hirose of Kariya-shi (JP)

POWER STORAGE DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240120627 titled 'POWER STORAGE DEVICE

Simplified Explanation

The patent application describes a power storage device with a unique design to improve voltage detection and overall performance.

  • The power storage device includes an electrode stack with bipolar electrodes and outermost current collectors.
  • It also features an inner voltage detection terminal and a pair of outer voltage detection terminals for improved monitoring.
  • Each bipolar electrode consists of a current collector, positive electrode active material layer, and negative electrode active material layer.
  • The inner voltage detection terminal is connected to the current collector, while the outer terminals are thicker for better conductivity.
  • The housing is positioned between the outer voltage detection terminals, with a dimension equal to or less than the distance between them.

Potential Applications

The technology can be applied in various energy storage systems, electric vehicles, renewable energy sources, and portable electronic devices.

Problems Solved

This design addresses issues related to voltage detection accuracy, overall efficiency, and performance optimization in power storage devices.

Benefits

The power storage device offers improved voltage detection, enhanced performance, increased efficiency, and better overall reliability.

Potential Commercial Applications

The technology can be utilized in battery systems for electric vehicles, grid energy storage solutions, consumer electronics, and industrial applications.

Possible Prior Art

One potential prior art could be the use of similar electrode stack designs in different types of energy storage devices.

Unanswered Questions

How does this technology compare to traditional power storage devices in terms of efficiency and performance?

The article does not provide a direct comparison between this technology and traditional power storage devices. It would be helpful to have data or studies showing the performance differences.

What are the potential cost implications of implementing this technology in commercial applications?

The article does not discuss the cost implications of using this technology in commercial applications. Understanding the cost-effectiveness of the technology is crucial for widespread adoption.


Original Abstract Submitted

a power storage device comprises: an electrode stack comprising a plurality of bipolar electrodes and a pair of outermost current collectors; an inner voltage detection terminal; a housing; and a pair of outer voltage detection terminals. each of the plurality of bipolar electrodes has a current collector, a positive electrode active material layer, and a negative electrode active material layer. the inner voltage detection terminal is electrically connected to the current collector. each of the pair of outer voltage detection terminals is thicker than the inner voltage detection terminal. the housing is located between the pair of outer voltage detection terminals in the stacking direction. a dimension of the housing in the stacking direction is equal to or less than a distance between the pair of outer voltage detection terminals in the stacking direction.