BATTERY MEMBER MANUFACTURING METHOD AND BATTERY MEMBER MANUFACTURING APPARATUS

• Main Authors: KUNIGAMI MASAKI, IKEDA SHUGA, KINOSHITA YUI, IURA SATONORI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSES; PRESSES IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

To provide a battery member manufacturing method and a battery member manufacturing apparatus capable of integrating battery members using a roll press and obtaining desirable battery member performance.SOLUTION: A manufacturing method of a battery material including a positive electrode sheet including at least a positive electrode current collector, and a negative electrode sheet including at least a negative electrode current collector, in which at least one of the positive electrode sheet and the negative electrode sheet is formed by laminating an electrolyte layer includes, in this order, a preheating step of heating the positive electrode sheet and the negative electrode sheet to a predetermined temperature, and a roll pressing step of integrating the positive electrode sheet and the negative electrode sheet, and in the roll pressing step, the roll pressing temperature of the positive electrode sheet and the roll pressing temperature of the negative electrode sheet are set to different temperature ranges.SELECTED DRAWING: Figure 1 【課題】電池部材を、ロールプレスを用いて一体化させ、かつ好ましい電池部材の性能を得ることができる、電池部材の製造方法及び電池部材の製造装置を提供すること。【解決手段】少なくとも正極集電体を含む正極シートと、少なくとも負極集電体を含む負極シートと、を有し、前記正極シート及び前記負極シートのうち少なくともいずれかは、電解質層が積層されてなる電池部材の製造方法であって、前記正極シート及び前記負極シートを所定の温度に加熱する予備加熱工程と、前記正極シート及び前記負極シートを一体化するロールプレス工程と、をこの順に備え、前記ロールプレス工程では、前記正極シートのロールプレス温度と、前記負極シートのロールプレス温度とは異なる温度範囲に設定される、電池部材の製造方法。【選択図】図１