MANUFACTURING METHOD OF ELECTRODE, AND ELECTRODE

• Main Authors: UEZONO TOMOYUKI, ABE YUTA, ODA MOMOKA
• Format: Patent
• Language: English; Japanese
• Published: 29.09.2023
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; ELECTRICITY; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

To increase the upper limit value of a coating weight of an active material layer.SOLUTION: An electric field is formed between a substrate and a screen by applying a first voltage to the substrate and applying a second voltage to the screen. Coating powder is introduced into the electric field through the screen. An electrode is manufactured by causing the coating powder to adhere to the substrate. The first voltage has a polarity opposite to a polarity of the second voltage. When the coating powder passes through the screen, the coating powder comes into contact with the screen to apply a charge to the coating powder. The coating powder flies in the electric field by an electrostatic force to reach the substrate. An angle between a flight direction of the coating powder and a vertically downward direction is 90 degrees to 270 degrees.SELECTED DRAWING: Figure 1 【課題】活物質層の目付量の上限値を大きくすること。【解決手段】基材に第１電圧が印加され、かつスクリーンに第２電圧が印加されることにより、基材とスクリーンとの間に電界が形成される。スクリーンを通して、粉体塗料が電界に導入される。粉体塗料が基材に付着することにより、電極が製造される。第１電圧は、第２電圧と反対極性を有する。粉体塗料がスクリーンを通過する際に、粉体塗料がスクリーンと接触することにより、粉体塗料に電荷が付与される。電界中、静電気力によって粉体塗料が飛行することにより、粉体塗料が基材に到達する。粉体塗料の飛行方向と、鉛直下向きとのなす角は、９０～２７０度である。【選択図】図１