MANUFACTURING DEVICE OF LITHIUM-ION BATTERY ELECTRODE AND MANUFACTURING METHOD OF LITHIUM-ION BATTERY ELECTRODE

• Main Authors: HORIE HIDEAKI, YOKOYAMA YUICHIRO, MORIZANE TOMOAKI, IMAISHI TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a manufacturing method and a manufacturing device of an electrode for a lithium ion battery that suppress the occurrence of a crack and a chip in an electrode layer and is less likely to cause a molding defect even when the rotation speed of a roll is increased.SOLUTION: A manufacturing device of an electrode for a lithium ion battery includes an electrode composition including an electrode active material particle, an arrangement portion for arranging an electrode material for a lithium ion battery composed of a frame-shaped member arranged in an annular shape so as to surround the periphery of the electrode composition on a substrate, a vacuum packaging portion that vacuum-packs the electrode material for a lithium-ion battery together with the substrate to obtain a vacuum package, and a pressure molding portion including a pair of rollers that roll-press the vacuum package.SELECTED DRAWING: Figure 4 【課題】電極層の割れや欠けの発生を抑えると共に、ロールの回転速度を上げた場合であっても成形不良を起こしにくいリチウムイオン電池用電極の製造方法及びその製造装置を提供すること。【解決手段】電極活物質粒子を含む電極組成物と、上記電極組成物の周囲を囲むように環状に配置される枠状部材とからなるリチウムイオン電池用電極材を基板上に配置する配置部と、上記リチウムイオン電池用電極材を上記基板ごと真空包装して真空パッケージを得る真空包装部と、上記真空パッケージをロールプレスする一対のローラを含む加圧成形部と、を備えることを特徴とするリチウムイオン電池用電極の製造装置。【選択図】 図４