Course title
物質エネルギー設計特論II   [Advanced Energy and Materials Design II]
Course category courses for the 5-years doctral program  Requirement   Credit 1 
Department   Year 12  Semester 1st 
Course type 1st  Course code 231004
Instructor(s)
富永 洋一   [TOMINAGA Yoichi]
Facility affiliation Graduate School of Bio-Applications and Systems Engineering Office afjgxte/L1151  Email address

Course description
These new “polymer electrolytes” are recently winning interest as solid-state alternatives to liquid electrolytes for electrochemical device applications, which range from high-energy density rechargeable batteries to solar cells, ion sensors and electrochromic displays. Above all, secondary lithium batteries based on polymer electrolytes have the capabilities of outstanding performance in terms of easy processibility, mechanical stability, reliability and safety (non flammability and leakage).
Solid polymer electrolytes (SPEs) are new electrolyte materials which consist of salt (ion source) and polar polymer such as polyether. In this lecture, you review the basics of polymer materials science learned in the undergraduate lectures. The lecture focuses on SPEs and proceeds fundamentals of history, structures/species, industrial needs and applications. You learn the mechanism of dissociation of salts, diffusion phenomenon, measurement techniques and recent research on SPEs.
Expected Learning
You can understand the basis of SPEs, especially material types, configurations for the energy storage device such as a lithium ion secondary battery and the principle of operation.
Course schedule
Part 0: Class guidance
Part 1: The historical background, type and structure of SPEs
Part 2: What is electrolyte? ~to understand why salts are soluble in water~
Part 3: Ionic dissociation and ion transport mechanism in polymer (in polyether)
Part 4: Phase diagram and crystallization of SPEs
Part 5: Measurement techniques of ionic conductivity, ion-conductive characteristics
Part 6: Application of SPEs 1
Part 7: Application of SPEs 2
Prerequisites
Physical Chemistry, Polymer Science
Required Text(s) and Materials
Printed papers are distributed in the class and unnecessary to buy textbooks
References
Refer to the books on polymers (such as Fiona M. Gray, Solid Polymer Electrolytes 〜Fundamentals and Technological Applications〜, VCH Publishers (1991), Fundamentals of Polymer Sciences and Electron Functional Polymers, etc.) in the library
Assessment/Grading
The grade evaluation in this online class is premised on all attendances, and comprehensively evaluates the attitude to learn, reports, and online tests. Standard study time set by our university is required to get the grade. Grade will be given according to the following criteria by comprehensive evaluation: S: 90 points or more, A: 80 or more and less than 90 points, B: 70 or more and less than 80 points, C: 60 or more and less than 70 points.
Message from instructor(s)
The SPEs have already used for batteries of laptop computers as in the gel state. From the viewpoint of electrical properties of polymer, there are unexpectedly many products applying piezoelectric and conductive polymers. Please try to learn hard to understand electric properties of polymer.
Course keywords
Polymer electrolyte, Ionic conductivity, Dissociation, Mobility, Polyether, Li-ion secondary battery
Office hours
Anytime in the first floor of Room 121 of Building No. 4
Remarks 1
Remarks 2
Related URL
Lecture Language
English
Language Subject
Last update
1/6/2021 8:44:27 PM