17768716. Electrode Drying Method Capable of Suppressing Binder Swelling and Electrode Drying System Using Same simplified abstract (LG Energy Solution, Ltd.)

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Electrode Drying Method Capable of Suppressing Binder Swelling and Electrode Drying System Using Same

Organization Name

LG Energy Solution, Ltd.

Inventor(s)

Chang Ju Lee of Daejeon (KR)

Sang Wook Woo of Daejeon (KR)

Suk In Noh of Daejeon (KR)

Electrode Drying Method Capable of Suppressing Binder Swelling and Electrode Drying System Using Same - A simplified explanation of the abstract

This abstract first appeared for US patent application 17768716 titled 'Electrode Drying Method Capable of Suppressing Binder Swelling and Electrode Drying System Using Same

Simplified Explanation

The abstract describes a method for drying an electrode substrate coated with an electrode slurry in a way that suppresses the floating phenomenon of binder elements and improves adhesive force between layers. The method involves two stages: constant-rate-drying and falling-rate-drying.

  • Constant-rate-drying: The electrode substrate is moved in a tilted position while being dried at a constant rate. This helps to prevent the floating of binder elements during the drying process.
  • Falling-rate-drying: After the constant-rate-drying stage, the electrode substrate is horizontally moved while being further dried. This stage improves the adhesive force between the electrode mixture layer and the electrode current collector.

Potential applications of this technology:

  • Lithium-ion batteries: The electrode drying method can be applied in the manufacturing process of lithium-ion batteries, improving the quality and performance of the electrodes.
  • Supercapacitors: This method can also be used in the production of supercapacitors, enhancing the adhesion between layers and increasing the overall efficiency.

Problems solved by this technology:

  • Floating phenomenon: The method addresses the issue of binder elements floating during the drying process, which can lead to poor adhesion and reduced performance of the electrode.
  • Adhesive force: By improving the adhesive force between the electrode mixture layer and the electrode current collector, the method ensures better overall electrode quality and performance.

Benefits of this technology:

  • Enhanced electrode quality: The drying method helps to prevent floating of binder elements, resulting in electrodes with improved adhesion and performance.
  • Increased efficiency: By improving the adhesive force between layers, the method enhances the overall efficiency of the electrode in various applications.
  • Manufacturing optimization: Implementing this method in electrode production processes can lead to more efficient and reliable manufacturing, reducing waste and improving product consistency.


Original Abstract Submitted

An electrode drying method including: constant-rate-drying an electrode substrate coated with an electrode slurry while the electrode substrate is moved in a state that the electrode substrate makes a tilt angle with a horizontal plane; and falling-rate-drying the electrode substrate while the electrode substrate is horizontally moved. The electrode drying method and related system provide suppression of a floating phenomenon of binder elements during a drying process of an electrode and improve adhesive force between an electrode mixture layer and an electrode current collector.