Abstract:
The present invention relates to a core-shell structure of a plasticizer, a manufacturing method thereof, a solid polymer electrolyte composition containing the same. In addition, a solid polymer electrolyte composition according to the present invention has low crystallinity even at a low temperature by ethylene oxide groups of plasticizer shells, has high ionic conductivity at low temperature as compared with linear polyethylene glycol conventional plasticizers by chain mobility increase in molecules, has excellent electrochemical and heat stability thereby being effectively used as a solid polymer electrolyte such as a lithium-polymer secondary battery, dye-sensitized solar cells, fuel cells, etc. [Reference numerals] (AA) Ionic conductivity(scm^-1); (BB) Example 1; (CC) Example 2
Abstract:
본 발명은 코어-쉘 구조의 가소제, 이의 제조방법 및 이를 함유하는 고체 고분자 전해질 조성물에 관한 것으로, 본 발명에 따른 고체 고분자 전해질 조성물은, 낮은 온도에서도 가소제 쉘(shell)의 에틸렌옥사이드기로 인하여 낮은 결정성을 갖고, 또한 분자 내의 사슬 운동 증가로 인하여 낮은 온도에서도 종래의 선형 폴리에틸렌글리콜 가소제에 비하여 높은 이온전도도를 가질 뿐만 아니라, 전기화학적 및 열적 안정성이 우수하므로, 리튬-폴리머 이차전지, 염료감응형 태양전지, 연료전지 등의 고체 고분자 전해질로 유용하게 사용할 수 있다.
Abstract:
The present invention relates to a semi-IPN (interpenetrating polymer network) type solid polymer electrolyte composition containing a polycarbonate-based plasticizer with an oligoethyleneglycol side chain. The solid polymer electrolyte composition of the present invention has high ionic conductivity and excellent electrochemical and thermal stability compared to an existing linear polyethyleneglycol plasticizer at low temperatures by the low crystallinity of an oligoethyleneglycol group introduced to polycarbonate as a side chain, and the movement increase of chains inside a molecule by introducing the side chain. The solid polymer electrolyte composition can be applied as solid polymer electrolyte to a lithium-polymer secondary battery, a dye-sensitized solar cell, and fuel cell. [Reference numerals] (AA) Ionic conductivity (Scm^-1); (BB) Example 2; (CC) Example 3; (DD) Example 4; (EE) Temperature (1000K^-1)