POSITIVE ELECTRODE AND POSITIVE ELECTRODE ACTIVE MATERIAL PLATE FOR LITHIUM SECONDARY BATTERY, AND METHODS FOR MANUFACTURING POSITIVE ELECTRODE AND POSITIVE ELECTRODE ACTIVE MATERIAL PLATE FOR LITHIUM SECONDARY BATTERY

• Main Authors: NANATAKI TSUTOMU, URAKAWA AKIRA, SUGIURA RYUTA, OZAWA SHUICHI, OKADA SHIGEKI
• Format: Patent
• Language: English; French; Japanese
• Published: 26.09.2013
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The present invention relates to a positive electrode and a positive electrode active material plate for a lithium secondary battery, and methods for manufacturing the positive electrode and the positive electrode active material plate. The present invention is characterized in that grooves, which are configured of recessed sections, and have irregular shapes (for instance, irregular cell shapes) in planar view, are formed on the main surface of the positive electrode active material plate. La présente invention concerne une électrode positive et une plaque de matériau actif d'électrode positive pour une batterie secondaire au lithium, et des procédés de fabrication de l'électrode positive et de la plaque de matériau actif d'électrode positive. La présente invention est caractérisée en ce que des rainures, qui sont configurées à partir de sections en retrait, et qui ont des formes irrégulières (par exemple, des formes de cellules irrégulières) en vue en plan, sont formées sur la surface principale de la plaque de matériau actif d'électrode positive.