18387606. Battery Electrode Manufacturing Advanced Calender Measurement and Control (HONEYWELL INTERNATIONAL INC.)

Battery Electrode Manufacturing Advanced Calender Measurement and Control

Organization Name

HONEYWELL INTERNATIONAL INC.

Inventor(s)

Michael Forbes of North Vancouver CA

Michael Hughes of North Vancouver CA

Battery Electrode Manufacturing Advanced Calender Measurement and Control

This abstract first appeared for US patent application 18387606 titled 'Battery Electrode Manufacturing Advanced Calender Measurement and Control

Original Abstract Submitted

Calender measurement and control system, for fabricating electrode sheets for lithium-ion batteries to an apparatus, includes: dual rotating rolls through which the sheet travels, heating elements (inductive coils) positioned along the length of one or both of rotating rolls, and means for controlling the intensity of the heating in a rotating roll(s) along the length of the rotating roll(s) where the heating is applied. The diameter of the heated rotating roll expands in response to the heat thereby regulating the thickness of the electrode. Controller input includes operating point data comprising electrode material composition, electrode coating weight, maximum electrode coat density, initial electrode coat thickness, temperature of one or both of the rotating rollers incorporating a heating element, and line load. The controller can be tuned whereby the process gain from line load to final thickness is automatically calculated at a specified operating point defined by the operating point data.