PROCESS OF MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY

• Main Authors: MURATA KOICHI, ISHII NOBUAKI, IKENOUE YOSHIAKI, SAKAGUCHI MASASHI, MUTO ARIHIRO, TAKEUCHI MASATAKA
• Format: Patent
• Language: English
• Published: 03.07.2014
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOUNDS THEREOF; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To provide a negative electrode material capable of obtaining a lithium ion battery, having large charge and discharge capacity, and excellent in charge and discharge cycle characteristics.SOLUTION: The process of manufacturing negative electrode material for lithium ion battery includes: preparing slurry by mixing carbon particles (B), particles (A) containing elements capable of occluding and discharging lithium ions, carbon precursors, carboxylic acid compounds, and a liquid medium; drying and solidifying the slurry; and heat treating an obtained solidified matter for carbonizing the carbon precursors.