2013 Fiscal Year Final Research Report
Development of liquid zwitterion-type lithium ion conductive polymers with controlled nano-structure
| Project/Area Number |
24750112
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer chemistry
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| Research Institution | Sophia University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 機能性高分子 / 導電性高分子 / 双性イオン / 高分子電解質 / イオン液体 / リチウムイオン電池 |
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| Research Abstract |
In order to develop novel lithium ion conductive polymers with high ion conductivity, copolymers composed of an oligoether monomer and a zwitterionic monomer were synthesized. In addition, the properties of liquid zwitteion/lithium salt composites were evaluated, and their lithium ion conductivity was investigated. The zwitterion moiety is a high polarity matrix that can dissociate a large amount of lithium salts into ion species. The electrochemical window of liquid zwitterion was about 5 V, which was enough value to be electrolytes for lithium ion batteries. Charge/discharge tests were conducted for the lithium ion batteries that were fabricated with polyether/liquid-zwitterion/lithium-salt composites, and a stable performance was observed.
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Research Products
(9 results)
