화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center))
권호 24권 1호
발표분야 [에너지저장·변환2] 차세대 이차전지 기술개발 동향
제목 Thermoplastic elastomer-based polymer electrolyte for sodium-ion polymer batteries with advanced electrodes
초록 Sodium-ion batteries (SIBs) have been recognized as a promising alternative to lithium-ion batteries.  However, the liquid electrolyte has inherent safety problems.  Polymer electrolyte has been considered as a safer and more reliable electrolyte system.  Herein, we report a thermoplastic polyurethane-based polymer electrolyte with high ionic conductivity and high elasticity for SIB application.  It has an ambient temperature ionic conductivity of 1.5 mS cm-1 and high elasticity.  As the advanced electrode materials for SIB, we synthesized MoS2@C@MoS2 anode and Na3V2(PO4)3 cathode.  The sodium-ion polymer cell assembled with MoS2@C@MoS2 anode, polymer electrolyte and Na3V2(PO4)3 cathode showed a high specific capacity with good capacity retention.  Our results demonstrate that the sodium-ion polymer cell assembled with thermoplastic polyurethane-based polymer electrolyte can be used as a new energy storage device with high safety.
저자 박명수1, Ganesh Kumar Veerasubramani1, 이윤성2, 김동원1
소속 1한양대, 2전남대
키워드 polymer electrolyte; sodium-ion battery; advanced electrode; energy storage
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