Toyota jidosha kabushiki kaisha (20240186509). SECONDARY BATTERY AND MANUFACTURING METHOD FOR THE SAME simplified abstract

SECONDARY BATTERY AND MANUFACTURING METHOD FOR THE SAME

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Ximeng Li of Susono-shi (JP)

Hisatsugu Yamasaki of Susono-shi Shizuoka-ken (JP)

Makio Kon of Mishima-shi Shizuoka-ken (JP)

Tomoya Matsunaga of Susono-shi Shizuoka-ken (JP)

SECONDARY BATTERY AND MANUFACTURING METHOD FOR THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240186509 titled 'SECONDARY BATTERY AND MANUFACTURING METHOD FOR THE SAME

Simplified Explanation

The secondary battery described in the abstract comprises a metallic lithium negative electrode and has a high coulombic efficiency. The battery includes a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer with specific substances to enhance performance.

• The negative electrode active material layer consists of a first substance (an alloy of Li and an element X or a compound of Li and the element X) and a second substance (a simple substance of a metal element M, an alloy of Li and the metal element M, or a compound of Li and the metal element M).
• The formation energy of the first substance is lower than the formation energy of the compound of the metal element M and the element X, contributing to the efficiency of the battery.

Potential Applications

This technology could be applied in electric vehicles, portable electronic devices, and grid energy storage systems.

Problems Solved

This innovation addresses the need for high-performance secondary batteries with improved coulombic efficiency and stability.

Benefits

The secondary battery offers increased energy storage capacity, longer cycle life, and enhanced safety features.

Potential Commercial Applications

The technology could be utilized in the automotive industry, consumer electronics sector, and renewable energy storage solutions.

Possible Prior Art

One potential prior art could be the development of lithium-ion batteries with different electrode materials to improve performance and efficiency.

How does this technology compare to other advanced battery technologies on the market?

This article does not provide a direct comparison with other advanced battery technologies, leaving the reader to wonder about its competitive advantages.

What are the specific challenges in scaling up production of these batteries for commercial use?

The article does not address the potential challenges in mass-producing these batteries for widespread commercial applications, leaving a gap in understanding the scalability of the technology.

Original Abstract Submitted

a secondary battery comprising a metallic lithium negative electrode and having a coulombic efficiency. the secondary battery of the present disclosure comprises a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer, wherein the negative electrode active material layer comprises a first substance and a second substance, wherein the first substance is at least one of an alloy of li and an element x and a compound of li and the element x; the second substance is at least one of a simple substance of a metal element m, an alloy of li and the metal element m, and a compound of li and the metal element m; and a formation energy eof the first substance is lower than a formation energy eof the compound of the metal element m and the element x.