18147870. MANUFACTURING METHOD OF CARBON PRECURSOR FIBER FOR GAS DIFFUSION LAYER simplified abstract (KIA CORPORATION)

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MANUFACTURING METHOD OF CARBON PRECURSOR FIBER FOR GAS DIFFUSION LAYER

Organization Name

KIA CORPORATION

Inventor(s)

Seo Hyun Yoon of Anyang (KR)

Han Gi Chae of Ulsan (KR)

Chang Beom Jeon of Ulsan (KR)

Hye Jin Ju of Ulsan (KR)

MANUFACTURING METHOD OF CARBON PRECURSOR FIBER FOR GAS DIFFUSION LAYER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18147870 titled 'MANUFACTURING METHOD OF CARBON PRECURSOR FIBER FOR GAS DIFFUSION LAYER

Simplified Explanation

The method described in the patent application involves manufacturing a carbon precursor fiber for a gas diffusion layer with excellent tensile properties by controlling the cross-sectional shape of the carbon fiber. This is achieved by preparing a polyacrylonitrile-based copolymer, spinning spinning products in a coagulation bath, and obtaining a carbon precursor fiber through heat treatment.

  • Polyacrylonitrile-based copolymer is prepared as the starting material.
  • Spinning products are created by spinning a spinning solution containing the copolymer in a coagulation bath.
  • Carbon precursor fiber is obtained by drawing the spinning products through heat treatment.
  • The coagulation bath consists of 60% to 90% methanol and 10% to 40% dimethylformamide.

Potential Applications

The technology can be applied in the manufacturing of gas diffusion layers for fuel cells, aerospace components, and other high-performance applications requiring strong and durable materials.

Problems Solved

This technology solves the problem of producing carbon precursor fibers with excellent tensile properties, such as strength and modulus, by controlling the cross-sectional shape of the fibers during manufacturing.

Benefits

The method results in carbon fibers with superior tensile properties, making them ideal for use in demanding applications where strength and durability are crucial. Additionally, the process is efficient and cost-effective.

Potential Commercial Applications

"Manufacturing Carbon Precursor Fiber for Gas Diffusion Layers: Applications and Benefits"

Possible Prior Art

There may be prior art related to methods of manufacturing carbon fibers with specific cross-sectional shapes to enhance their mechanical properties. Further research and patent searches would be needed to identify any existing technologies in this area.

Unanswered Questions

What are the specific properties of the carbon precursor fiber produced using this method?

The patent application mentions excellent tensile properties, but it does not provide detailed information on the specific mechanical, thermal, or electrical properties of the carbon precursor fiber.

How does the cross-sectional shape of the carbon fiber impact its performance in gas diffusion layers?

While the patent application discusses controlling the cross-sectional shape of the carbon fiber, it does not delve into the specific effects of different shapes on the functionality and efficiency of gas diffusion layers.


Original Abstract Submitted

Proposed is a method of manufacturing a carbon precursor fiber for a gas diffusion layer having excellent tensile properties (e.g., strength and modulus) by controlling the cross-sectional shape of carbon fiber. The method includes preparing a polyacrylonitrile-based copolymer, preparing spinning products by spinning a spinning solution containing the polyacrylonitrile-based copolymer in a coagulation bath, and obtaining a carbon precursor fiber by drawing the spinning products through heat treatment. The coagulation bath includes an amount of about 60% to 90% by volume of methanol and an amount of about 10% to 40% by volume of dimethylformamide based on the total volume of the coagulation bath.