Gm global technology operations llc (20240250238). METHOD OF MANUFACTURING COMPOSITE ELECTRODES simplified abstract

METHOD OF MANUFACTURING COMPOSITE ELECTRODES

Organization Name

gm global technology operations llc

Inventor(s)

Chuanlong Wang of Troy MI (US)

Xiaosong Huang of Novi MI (US)

Mark W. Verbrugge of Troy MI (US)

METHOD OF MANUFACTURING COMPOSITE ELECTRODES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240250238 titled 'METHOD OF MANUFACTURING COMPOSITE ELECTRODES

The abstract describes a method for manufacturing a composite electrode for an electrochemical cell that cycles lithium ions.

• Introducing a solvent, a binder, electroactive material particles, and an electrically conductive agent into a screw extruder to form an electrode precursor mixture.
• Discharging the electrode precursor mixture from the screw extruder and depositing it on a metal substrate to form an electrode precursor layer.
• Calendaring the electrode precursor layer by passing it between rollers to adhere and uniformly distribute the layer over the metal substrate.
• Drying the electrode precursor layer to remove the solvent and form a solid electrode layer with the electroactive material particles, electrically conductive agent, and binder on the metal substrate.

Potential Applications: - Lithium-ion batteries - Energy storage systems - Portable electronic devices

Problems Solved: - Efficient manufacturing of composite electrodes - Enhanced performance of electrochemical cells

Benefits: - Improved cycling of lithium ions - Increased energy storage capacity - Cost-effective production process

Commercial Applications: Title: "Advanced Composite Electrodes for Lithium-ion Batteries" This technology can be used in the production of lithium-ion batteries for various applications, including electric vehicles, consumer electronics, and renewable energy storage systems. The efficient manufacturing process and improved performance characteristics make it a valuable innovation in the battery industry.

Questions about the technology: 1. How does the composite electrode manufacturing process improve the performance of lithium-ion batteries? 2. What are the key advantages of using an electrically conductive agent in the electrode precursor mixture?

Original Abstract Submitted

a composite electrode for an electrochemical cell that cycles lithium ions is manufactured by introducing a solvent, a binder, electroactive material particles, and an electrically conductive agent into a screw extruder to form an electrode precursor mixture. the electrode precursor mixture is discharged from the screw extruder and deposited on a metal substrate to form an electrode precursor layer. the electrode precursor layer is calendared by passing the electrode precursor layer between rollers to adhere the electrode precursor layer to and uniformly distribute the electrode precursor layer over the metal substrate. then, the electrode precursor layer is dried to remove the solvent therefrom and form a solid electrode layer including the electroactive material particles, the electrically conductive agent, and the binder on the surface of the metal substrate.