18123371. POSITIVE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE AND LITHIUM-ION SECONDARY BATTERY simplified abstract (CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED)

POSITIVE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE AND LITHIUM-ION SECONDARY BATTERY

Organization Name

CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor(s)

Qi Wu of Ningde City, Fujian (CN)

Jinhua He of Ningde City, Fujian (CN)

Changyin Ji of Ningde City, Fujian (CN)

Liangbin Liu of Ningde City, Fujian (CN)

POSITIVE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE AND LITHIUM-ION SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18123371 titled 'POSITIVE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE AND LITHIUM-ION SECONDARY BATTERY

Simplified Explanation

The patent application describes a positive active material for batteries, consisting of active material bulk particles with a coating layer of an oxide containing N element. The surface of the bulk particles is doped with M element, with a gradual decrease in content from the outer surface towards the core. The M element and N element can be Mg, Ca, Ce, Ti, Zr, Al, Zn, and B.

• The active material bulk particles are doped with M element in a gradient manner, with a content ranging from 400 ppm to 3000 ppm.
• The coating layer contains N element with a content of 100 ppm to 2000 ppm, and the average content of N element per unit volume is higher than that of M element in the doped layer.

Potential Applications

This technology can be applied in lithium-ion batteries, electric vehicles, portable electronic devices, and renewable energy storage systems.

Problems Solved

1. Enhanced battery performance and longevity. 2. Improved energy density and charging efficiency.

Benefits

1. Increased battery capacity and cycle life. 2. Higher energy efficiency and power output. 3. Reduced degradation and improved safety.

Potential Commercial Applications

Optimized battery materials for electric vehicles. SEO Optimized Title: "Commercial Applications of Advanced Battery Materials"

Possible Prior Art

One possible prior art could be the use of doped active materials in battery technology to enhance performance and stability.

How does the doping of the active material particles with M element affect the overall battery performance and efficiency?

The article does not provide specific data on the direct impact of the doping process on battery performance metrics such as capacity, cycle life, and charging/discharging rates.

What are the specific manufacturing processes involved in creating the coating layer with the oxide containing N element on the active material bulk particles?

The patent abstract does not detail the specific methods or techniques used to apply the coating layer onto the active material particles, leaving room for further exploration and research in this area.

Original Abstract Submitted

A positive active material comprising active material bulk particles and a coating layer of an oxide containing N element is disclosed, wherein the surface of the active material bulk particle is doped with M element to form a doped layer, and the content of the M element is 400 ppm to 3000 ppm, and the content of the M element gradually decreases from the outer surface of active material bulk particles towards the core direction; wherein the content of the N element in the coating layer is 100 ppm to 2000 ppm; wherein the average content of the N element per unit volume of the coating layer is greater than the average content of the M element per unit volume of the doped layer; wherein the M element and the N element are each independently selected from one or more of Mg, Ca, Ce, Ti, Zr, Al, Zn, and B.