METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

• Main Authors: SHIMAMURA OSAMU, HAGIYAMA KOSUKE, MIYAMOTO KENJI, ICHIKAWA YOSHIHIRO, SATO MASANOBU
• Format: Patent
• Language: English; Japanese
• Published: 09.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a means capable of sufficiently reducing an amount of generated gas during initial charging in a nonaqueous electrolyte secondary battery.SOLUTION: A method for manufacturing a negative electrode for a nonaqueous electrolyte secondary battery of the present invention includes a step 1: a step of removing moisture in CMC (salt), and a step 2: coating an aqueous slurry on a collector and drying the slurry to form a negative electrode, the aqueous slurry containing a negative electrode active material, CMC (salt) obtained during the step 1, and an aqueous binder.SELECTED DRAWING: None 【課題】非水電解質二次電池において、初期充電時のガス発生量を十分に低減できる手段を提供することを目的とする。【解決手段】本発明の非水電解質二次電池用負極の製造方法は、工程１：ＣＭＣ（塩）の水分を除去する工程と、工程２：集電体上に負極活物質、工程１で得られたＣＭＣ（塩）及び水系バインダを含む水系スラリを塗布、乾燥させて負極を形成する工程と、を含むことを特徴とする。【選択図】なし