Panasonic intellectual property management co., ltd. (20240313201). COATED ACTIVE MATERIAL, METHOD FOR PRODUCING COATED ACTIVE MATERIAL, POSITIVE ELECTRODE MATERIAL AND BATTERY simplified abstract

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COATED ACTIVE MATERIAL, METHOD FOR PRODUCING COATED ACTIVE MATERIAL, POSITIVE ELECTRODE MATERIAL AND BATTERY

Organization Name

panasonic intellectual property management co., ltd.

Inventor(s)

Norihito Fujinoki of Osaka (JP)

COATED ACTIVE MATERIAL, METHOD FOR PRODUCING COATED ACTIVE MATERIAL, POSITIVE ELECTRODE MATERIAL AND BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240313201 titled 'COATED ACTIVE MATERIAL, METHOD FOR PRODUCING COATED ACTIVE MATERIAL, POSITIVE ELECTRODE MATERIAL AND BATTERY

The abstract describes a coated active material for a positive electrode in a battery, with a coating layer containing a lithium-containing fluoride. The material has a moisture content between 0 ppm and 250 ppm per unit mass, measured at temperatures ranging from 25°C to 300°C using a Karl Fischer method.

  • The coated active material includes a positive electrode active material and a coating layer with a lithium-containing fluoride.
  • The method for producing the coated active material involves drying the positive electrode active material to achieve the desired moisture content range before coating it with the lithium-containing fluoride material.
  • The moisture content of the positive electrode active material is crucial for the performance and stability of the battery.

Potential Applications: - Lithium-ion batteries - Energy storage systems - Electric vehicles

Problems Solved: - Improved battery performance - Enhanced stability and safety - Reduced risk of degradation due to moisture

Benefits: - Increased battery efficiency - Extended battery lifespan - Enhanced safety features

Commercial Applications: Title: "Innovative Coated Active Material for High-Performance Batteries" This technology can be utilized in the production of lithium-ion batteries for various applications, including electric vehicles, portable electronics, and renewable energy storage systems. The market implications include advancements in battery technology, leading to more reliable and efficient energy storage solutions.

Questions about the technology: 1. How does the moisture content of the positive electrode active material impact battery performance? 2. What are the key advantages of using a lithium-containing fluoride in the coating layer of the active material?


Original Abstract Submitted

a coated active material includes a positive electrode active material and a coating layer coating a surface of the positive electrode active material. the coating layer includes a lithium-containing fluoride. when moisture content of the positive electrode active material from 25� c. to 300� c. measured by a karl fischer method, the moisture content is more than 0 ppm and less than 250 ppm per unit mass of the positive electrode active material. a method for producing the coated active material includes: drying the positive electrode active material so that when moisture content of the positive electrode active material from 25� c. to 300� c. measured by the karl fischer method, the moisture content is more than 0 ppm and less than 250 ppm per unit mass of the positive electrode active material; and, after the drying, coating the surface of the positive electrode active material with a coating material including a lithium-containing fluoride.

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