20240055607. CARBON MATERIAL COMPOSITION, METHOD FOR PRODUCING CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY simplified abstract (Mitsubishi Chemical Corporation)

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CARBON MATERIAL COMPOSITION, METHOD FOR PRODUCING CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

Organization Name

Mitsubishi Chemical Corporation

Inventor(s)

Nobuyuki Ishiwatari of Tokyo (JP)

Hisako Kondo of Tokyo (JP)

Masakazu Yokomizo of Tokyo (JP)

CARBON MATERIAL COMPOSITION, METHOD FOR PRODUCING CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240055607 titled 'CARBON MATERIAL COMPOSITION, METHOD FOR PRODUCING CARBON MATERIAL COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

Simplified Explanation

The present invention is a carbon material composition containing two types of carbon materials, where one carbon material contains graphite with an amorphous carbonaceous material or graphite material, has multiple peaks in a pore size distribution, and meets a specific equation relating to pore volume and coating rate. The other carbon material has a pellet density of 1.80 g/cm³ or higher.

  • The carbon material composition contains two types of carbon materials: one with graphite and another with a specific pellet density.
  • The carbon material with graphite must have multiple peaks in its pore size distribution and meet a specific equation involving pore volume and coating rate.
  • The other carbon material must have a pellet density of 1.80 g/cm³ or higher.
      1. Potential Applications

- Battery electrodes - Supercapacitors - Fuel cells

      1. Problems Solved

- Improved performance of carbon materials in various applications - Enhanced energy storage capabilities - Increased efficiency in energy conversion devices

      1. Benefits

- Higher performance due to optimized pore size distribution - Increased energy storage capacity - Improved efficiency in energy conversion devices


Original Abstract Submitted

the present invention provides a carbon material composition containing a carbon material (a) and a carbon material (b), in which the carbon material (a) contains graphite containing an amorphous carbonaceous material or a graphite material, has two or more peaks in a pore size distribution measured by a mercury porosimetry, and satisfies y≤−0.0084x+0.13 wherein a cumulative pore volume in a range where a pore diameter is equal to or smaller than a pore diameter at a local minimum value between a peak of a smallest pore diameter and a peak of a second smallest pore diameter in the pore size distribution is defined as y (ml/g) and a coating rate of the amorphous carbonaceous material or the graphite material in the graphite is defined as x (%), and the carbon material (b) has a pellet density of 1.80/cmor more.

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