18528830. LITHIUM NICKEL MANGANESE COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM NICKEL MANGANESE COMPOSITE OXIDE simplified abstract (HONDA MOTOR CO., LTD.)

LITHIUM NICKEL MANGANESE COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM NICKEL MANGANESE COMPOSITE OXIDE

Organization Name

HONDA MOTOR CO., LTD.

Inventor(s)

Kazuki Chiba of Wako-shi (JP)

Takashi Hakari of Wako-shi (JP)

Akihisa Tanaka of Wako-shi (JP)

Kazumasa Sakatsume of Wako-shi (JP)

Yoshiya Fujiwara of Wako-shi (JP)

Yoshiyuki Morita of Wako-shi (JP)

LITHIUM NICKEL MANGANESE COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM NICKEL MANGANESE COMPOSITE OXIDE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18528830 titled 'LITHIUM NICKEL MANGANESE COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM NICKEL MANGANESE COMPOSITE OXIDE

The present invention pertains to a lithium nickel manganese composite oxide with secondary particles consisting of aggregated primary particles, represented by General Formula (1): LiNiMnO (where x is 1.0≤x≤1.07, y is 0.45≤y≤0.55, z is 0.45≤z≤0.55, and 1.0≤z/y≤1.22), featuring a manganese-rich layer within the secondary particles.

• Lithium nickel manganese composite oxide with unique structure
• Secondary particles composed of aggregated primary particles
• Manganese-rich layer present from the surface towards the inside of the particles
• Specific ratios of Mn to Ni atoms in the manganese-rich layer
• Distinct space group and lattice constants

1. 1. 1. Potential Applications:

- Advanced lithium-ion batteries - Energy storage systems - Electric vehicles - Portable electronic devices

1. 1. 1. Problems Solved:

- Enhanced battery performance - Improved energy density - Increased cycle life of batteries

1. 1. 1. Benefits:

- Higher energy efficiency - Longer battery lifespan - Sustainable energy storage solutions

1. 1. 1. Commercial Applications:
         1. Title: Advanced Lithium-ion Battery Technology for Energy Storage Systems

The technology can be utilized in the development of high-performance lithium-ion batteries for various applications, including electric vehicles, consumer electronics, and renewable energy storage systems. This innovation offers improved energy density, longer cycle life, and enhanced overall battery performance, making it a valuable solution for the growing demand for efficient energy storage solutions in the market.

1. 1. 1. Prior Art:

Further research can be conducted in the field of lithium-ion battery materials, specifically focusing on composite oxides and their structural properties to explore similar innovations and advancements in the industry.

1. 1. 1. Frequently Updated Research:

Stay updated on the latest developments in lithium-ion battery technology, composite oxide materials, and energy storage systems to leverage new findings and advancements in the field for potential improvements and applications of this technology.

1. 1. 1. 1. Questions about Lithium Nickel Manganese Composite Oxide:

1. What are the key advantages of using lithium nickel manganese composite oxide in battery technology? 2. How does the unique structure of the composite oxide contribute to its performance in energy storage applications?

Original Abstract Submitted

The present invention relates to a lithium nickel manganese composite oxide which includes secondary particles in which a plurality of primary particles are aggregated with each other, and is represented by General Formula (1): LiNiMnO(in Formula (1), x is 1.0≤x≤1.07, y is 0.45≤y≤0.55, z is 0.45≤z≤0.55, and 1.0≤z/y≤1.22 is satisfied), wherein Li contained in a transition metal layer does not form LiMn, wherein the lithium nickel manganese composite oxide has a manganese-rich layer from a surface of the secondary particles toward an inside of the secondary particles, wherein a ratio of a number of Mn atoms to a number of Ni atoms (Mn/Ni ratio) in the manganese-rich layer is 1.0 or more and 3.0 or less, and wherein the lithium nickel manganese composite oxide has a space group R-3m, an a-axis lattice constant of 2.87 Å to 2.90 Å, and a c-axis lattice constant of 14.28 Å to 14.32 Å.