Countermeasures for the degradation of the electrolyte in lithium secondary batteries and the associated damage to various components.
S10828
★The role of electrolytes directly related to performance maintenance, safety, and charge/discharge characteristics!! ★You can also learn about the damage that electrolytes can cause to various components, which you shouldn't miss!!
Speaker Part 1: Hideo Sugawara, Representative of Izumi Chemical Co., Ltd. Part 2: Kaoru Nakajima, LIB Technology Advisor & Consultant (Formerly of Sony Corporation, Energy Business Division, Development Department) Target Audience: Developers/researchers from companies related to lithium-ion batteries Venue: Tokyo Chuo Ward Industrial Hall, 4th Floor, Meeting Room 1 [Tokyo, Chuo Ward] 4-minute walk from Toei Asakusa Line, Higashi-Nihonbashi Station Date and Time: August 31, 2011 (Wednesday) 13:30-16:40 Capacity: 40 people *Please apply early as there may be a rush of applications. Participation Fee: [Early Bird Discount Price] 46,200 yen (tax included, including text costs) for up to 2 people from one company *Limited to Tech-Zone members who apply by August 17. Membership registration is free. *After August 17, the [Regular Price] will be 49,350 yen (tax included, including text costs) for up to 2 people from one company. ◆When applying for the early bird discount, please select “1 person (early discount)” or “2 people (early discount)” in the number registration. ◆If applying with 3 people from the same organization, the fee will be 69,300 yen.
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【1st Lecture - Summary of the Presentation】 Organic electrolytes (quality) are the most characteristic materials of lithium-ion batteries (cells). On the other hand, due to their organic nature, caution is required regarding decomposition and gas generation during charge and discharge cycles, limits of durability in overcharging and deep discharging, and behaviors in safety tests (such as ignition and explosion). Cells must be optimally designed in terms of the electrochemical composition of the electrolyte and active materials, and must maintain their performance as much as possible throughout the charge and discharge cycles. In this presentation, I would like to explain various issues at the practical cell stage with real examples based on the aforementioned fundamentals. 【2nd Lecture - Summary of the Presentation】 Among the components of lithium-ion batteries, the electrolyte is deeply involved in important battery characteristics such as long-term operation, high current performance, low-temperature usability, quick charging capability, and cycle life characteristics. I will discuss the degradation phenomena of LIBs as large power sources, which are expected to see increased demand in the future, and their relationship with the electrolyte. Additionally, I will explain the required properties of the electrolyte, degradation mechanisms, evaluation methods, and countermeasures.
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**Lecture 1 Program** 1. Electrochemical Fundamentals of Lithium-Ion Batteries (Cells) 1-1 Ion Conduction and Electron Conduction (Cell Division) 2. Composition of Lithium-Ion Cells as Products 2-1 Cell Design and Electrolyte (Quality) 2-2 Composition of Electrodes and Outer Materials (Sealing of Electrolyte) 3. Maintenance of Cell Performance and Deterioration Countermeasures 3-1 Deterioration Behavior of Cells 3-2 Decomposition and Gassing of Electrolyte (Quality) 3-3 Effects on Polymer Materials such as Binders 3-4 (Reference) How to Read Cell Characteristic Charts 4. Behavior of Electrolyte in Safety Testing 4-1 Electrolyte and Safety Viewed as Combustibles 4-2 Safety Testing of Batteries (JIS, UL, UN, etc.) 4-3 Hazard Levels and Chemical Hazards 5. Summary **Lecture 2 Program** 1. About Lithium-Ion Secondary Batteries (LIB) 2. Representative Product Quality of LIB 3. Material Technology of LIB 4. Relationship Between Electrolyte and Other Materials Affecting Battery Characteristics 5. Manufacturing Technology of LIB - Focusing on Electrolyte 6. Deterioration Phenomena Caused by LIB Electrolyte and Their Mechanisms 7. Future Prospects of LIB and Electrolyte Additive Technology
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