MANUFACTURING METHOD OF ELECTRODE

To provide a manufacturing method of an electrode, capable of suppressing coming-off/see-through occurred in a layer of an electrode active material of the electrode.SOLUTION: A manufacturing method of an electrode 12, including: a supply step of supplying a granulated body 10 as a wet powder contai...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ENOHARA KATSUSHI, SHIMAKO TETSUHIRO, TAKANO KEISUKE
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide a manufacturing method of an electrode, capable of suppressing coming-off/see-through occurred in a layer of an electrode active material of the electrode.SOLUTION: A manufacturing method of an electrode 12, including: a supply step of supplying a granulated body 10 as a wet powder containing an electrode active material to an AB gap 25 as a gap between an A role 1 and a B role 2 arranged in parallel; a film forming step of inversely rotating the A role 1 and the B role 2 each other and inserting the granulated body 10 into the AB gap 25 so as to form a film state; and a transference step of transferring the film-like granulated body 10 to a metal foil 11. The supply step further includes: a cracking step of inversely rotating a pair of cracking roles 42 arranged in parallel each other, and cracking the granulated body 10; and a falling-down conveying step of falling down the granulated body 10 passed through between the pair of cracking roles 42 through a pipe 43 toward the AB gap 25. A wall surface 433 of the pipe 43 is separated from a virtual surface P directed to a vertical lower direction from a center line of an opposition portion of the pair of cracking roles 42 toward the lower end.SELECTED DRAWING: Figure 1 【課題】電極の電極活物質の層に発生する抜けやスケを抑制できる電極の製造方法を提供すること。【解決手段】電極12の製造方法は、電極活物質を含む湿潤粉体である造粒体10を、平行に配置されたAロール1とBロール2との間隙であるABギャップ25に供給する供給工程と、Aロール1とBロール2とを互いに逆向きに回転させ、造粒体10をABギャップ25に通して膜状とする成膜工程と、膜状の造粒体10を金属箔11に転写する転写工程とを含む。供給工程はさらに、平行に配置された解砕ロール対42を互いに逆向きに回転させ、造粒体10を解砕する解砕工程と、解砕ロール対42の間を通過した造粒体10を配管43を介してABギャップ25に向けて落下させる落下搬送工程とを含む。配管43の壁面433は、下方ほど、解砕ロール対42の対向箇所の中心線から鉛直下方に向かう仮想面Pから離れている。【選択図】図1