What are the expected benefits and challenges of transitioning to water-based binders? What are the required characteristics of binders and their testing methods for the large-scale development of batteries?
Lecturer Part 1: Associate Professor Ta Matsumoto, Department of Materials and Life Chemistry, Faculty of Engineering, Kanagawa University Part 2: President Hidetaka Sugawara, Izumi Chemical Research Co., Ltd. Target Audience: Individuals from companies related to the development of lithium secondary batteries Venue: Tekuno Kawasaki, 5th Floor, Room 5 [Kanagawa, Kawasaki City] 5-minute walk from Tokyu Mizonokuchi Station East Exit, JR Musashi-Mizonokuchi Station Date and Time: December 12, 2011 (Monday) 13:00-16:00 Capacity: 30 people *Registration will close once full. Please apply early. Participation Fee: [Early Bird Discount Price] 46,200 yen per person (including tax and text costs) *Limited to Tech-Zone members who apply by November 28. Membership registration is free. *After November 28, the [Regular Price] will be 49,350 yen per person (including tax and text costs).
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【1. Lecture Summary】 Research on water-based binders aimed at simplifying the manufacturing process of lithium-ion secondary batteries is actively being conducted. In this lecture, I will discuss the characteristics and issues related to the types of binders, the relationship between the shapes of the coated positive and negative electrode films, and battery characteristics, while presenting recent data. 【2. Lecture Summary】 Large lithium-ion batteries (cells) for future EVs and renewable energy storage are based on materials and manufacturing processes used for small consumer applications. However, to meet the stringent performance requirements (energy & power and cycle life) of large cells, significant restructuring is unavoidable. Within this context, the manufacturing and evaluation of electrode plates through the binder process is crucial to battery production, but due to the wet process, it is difficult to handle and poses many issues regarding production costs and defect rates. In this seminar, I would like to organize the aforementioned problems in practical battery manufacturing and propose hints for their resolution.
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【Program 1】 1. Functions and Roles of Binders in Lithium-Ion Secondary Batteries 1-1. Roles that Binders Should Have 2. Dispersion Methods for Binders and Electrode Film Formation Methods 3. Binders for Anodes 3-1. Types of Aqueous Binders 3-2. Comparison of Battery Performance between Aqueous and Solvent-Based Binders 3-3. About Carboxymethyl Cellulose (CMC) Binders 3-4. About Acrylic Acid Binders 4. Binders for Cathodes 4-1. Types of Aqueous Binders 4-2. Comparison of Battery Performance between Aqueous and Solvent-Based Binders 4-3. About Carboxymethyl Cellulose (CMC) Binders 4-4. About the Combination of CMC Binders and Li Excess Solid Solution Cathode Materials 5. Binders for Anodes and Cathodes Utilizing Nanostructures 6. Research Trends and Future Challenges 【Program 2】 1. Composition and Structure of Lithium-Ion Batteries (Cells) 2. Overview of the Entire Manufacturing Process 3. Adaptation to New Cathode and Anode Materials 4. Selection of Binders and Slurry Preparation 5. Coating, Drying, and Evaluation of Electrode Plates 6. Characterization of Batteries (Cells)
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