MANUFACTURING APPARATUS OF POWER STORAGE DEVICE AND MANUFACTURING METHOD OF POWER STORAGE DEVICE

• Main Authors: NINOMIYA EISAKU, MATSUOKA MASAOKI, FUJII TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 29.10.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To reduce the manufacturing cost of a power storage device such as a lithium ion battery.SOLUTION: A knife-over-roll coater RC included in a manufacturing apparatus of electrode plate has a knife roll NRL arranged on the surface side of a current collector foil PEP traveling in a first direction, and a back roll BRL arranged on the back side of the current collector foil PEP oppositely to the knife roll NRL. Furthermore, the knife-over-roll coater RC has a first liquid supply section LS1, a second liquid supply section LS2, and a third liquid supply section LS3 arranged, in order, in a second direction perpendicular to the first direction on the surface of the current collector foil PEP. The first liquid supply section LS1 supplies a solution containing an insulating material (a first insulator IF1) to the surface of the current collector foil PEP, the second liquid supply section LS2 supplies an electrode material (a positive electrode material PAS) to the surface of the current collector foil PEP, and the third liquid supply section LS3 supplies a solution containing an insulating material (the first insulator IF1) to the surface of the current collector foil PEP. 【課題】リチウムイオン電池等の蓄電デバイスの製造コストを低減する。【解決手段】電極板の製造装置に備わるロールナイフコータＲＣは、第１方向に走行する集電箔ＰＥＰの表面側に配置されたナイフロールＮＲＬと、ナイフロールＮＲＬと対向して集電箔ＰＥＰの裏面側に配置されたバックロールＢＲＬとを有し、さらに、上記第１方向と集電箔ＰＥＰの表面で直交する第２方向に順に配置された、第１液供給部ＬＳ１と、第２液供給部ＬＳ２と、第３液供給部ＬＳ３とを有する。第１液供給部ＬＳ１は絶縁物質を含有する溶液（第１絶縁材料ＩＦ１）を集電箔ＰＥＰの表面に供給し、第２液供給部ＬＳ２は電極材料（正極材料ＰＡＳ）を集電箔ＰＥＰの表面に供給し、第３液供給部ＬＳ３は絶縁物質を含有する溶液（第１絶縁材料ＩＦ１）を集電箔ＰＥＰの表面に供給する。【選択図】図３