Toyota Jidosha Kabushiki Kaisha

Zeon Corporation

Yuto Hosono

Yasuhiro Sakashita

Koichi Tanihara

Naohiro Hasama

Junya Mori

A method for manufacturing an electrode for a lithium ion battery is provided. A powder layer is formed by using a squeegee roll to squeegee powder including an electrode active material and supplied onto a substrate, and then compacted on the substrate by means of a pair of press rolls while conveying the substrate vertically downward to form an electrode sheet. The method includes: supplying the powder onto the substrate; leveling the powder supplied onto the substrate to form the powder layer using the squeegee roll which is disposed in a position so that a squeegee angle formed by a vertical line passing through the rotating axis of one of the press rolls and a line passing through said rotating axis and the rotating axis of the squeegee roll is 0&#xb0; to 60&#xb0;; and compacting the powder layer on the substrate using the pair of press rolls.

Method for manufacturing electrode for lithium ion battery

Provided is an apparatus for manufacturing an electrode for a lithium ion secondary battery that makes it possible to form a more uniform active material layer by using granulated particles. The manufacturing apparatus includes: a conveying mechanism, a supply unit, a squeegee, an adjustment unit, and rolling rolls. The conveying mechanism conveys a collector. The supply unit supplies granulated particles, including active material particles and a binder, onto the surface of the conveyed collector. The squeegee levels the supplied granulated particles. The adjustment unit is disposed upstream of the squeegee. The adjustment unit controls the accumulation height of the granulated particles accumulated upstream of the squeegee. The rolling rolls roll the leveled granulated particles and form the active material layer.

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Tokyo, Japan

Yuto Hosono