METHOD OF PREPARING DRY ELECTRODE FILM, DRY ELECTRODE, AND LITHIUM BATTERY

METHOD OF PREPARING DRY ELECTRODE FILM, DRY ELECTRODE, AND LITHIUM BATTERY

A method of preparing a dry electrode film, a dry electrode, and a lithium battery are provided. The method includes providing a dry mixture including a dry electrode active material and a dry binder, and processing the dry mixture into a dry electrode film by utilizing a rolling device including a...

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Bibliographische Detailangaben
Hauptverfasser: KIM, Seongdae, YOON, Yeonhee, PYUN, Ahram, LEE, Donggeun, LEE, Jinhyon, NAM, Hyun, KWON, Ilkyong
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:A method of preparing a dry electrode film, a dry electrode, and a lithium battery are provided. The method includes providing a dry mixture including a dry electrode active material and a dry binder, and processing the dry mixture into a dry electrode film by utilizing a rolling device including a first calender roll and a second calender roll, where the first calender roll has a first rotational speed, and the second calender roll has a second rotational speed, a ratio of the first rotational speed to the second rotational speed is in a range of 1 :greater than 1 to about 1:6, the dry electrode active material includes a first electrode active material and a second electrode active material, and a particle diameter of the first electrode active material is different from a particle diameter of the second electrode active material.