2019年度 物質生命理工学科コロキウム
Ion transport in carbonyl-coordinating solid polymer electrolytes
Dr. Jonas Mindemark (Uppsala University)
| 日時/場所 | 2019年 11月 2日（土） 16:30-18:00 3-355A |
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Ion transport in carbonyl-coordinating solid polymer electrolytes
Dr. Jonas Mindemark (Uppsala University)
In solid polymer electrolytes such as PEO, based on oxyethylene repeating units, chelating effects effectively lock in the cations with excessive coordination strength. In contrast, carbonyl-coordinating host polymers, such as polyesters, polycarbonates and polyketones, are characterized by much weaker coordination. This has revealed important effects of preferential coordination, competing plasticization and steric hindrance of side chains, and correlation of cation transference number with the ion coordination strength. Of particular interest is also the differences observed when comparing Li+ and Na+ conduction in these materials.
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