바인더 특성이 전고체 전지용 실리콘 음극에 미치는 효과에 관한 연구

• 영문명: Influence of the Binder properties on Silicon Anode for Solid-State Batteries
• 발행기관: 한국세라믹학회
• 저자명: 탁희태(Heetae Tak) 고유나(Yuna Ko) 오성빈(Sungbin Oh) 박예찬(Yechan Park) 박현중(Hyunjung Park)
• 간행물 정보: 『세라미스트』제27권 제3호, 255~261쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2024.09.30

국문 초록

Silicon (Si) has been considered as one of the most promising anode materials because of its high theoretical capacity of 4200 mAh g−1. However, the huge volume change and side reactions upon cycling cause poor cycle performance and limit a use of Si for the commercialization. Recently all solid-state batteries open up new possibilities for an introduction of high capacity electrode materials due to their ability to operate under compression, which can mitigate electrode volume expansion. Herein, we study an effect of multifunctional polymeric binders on silicon anode for all solid-state batteries enabled by a sulfide Li6PS5Cl electrolyte. The Si electrode manufactured by a single rigid polymer shows stable electrochemical properties because of applied external pressure and potential hydrogen bonds between carboxyl groups and Si particles, resulting in a mitigation of a volume change. In addition, an introduction of multifunctional network binders to the Si-based electrode leads to a high discharge capacity of 3000 mAh g−1 and stable cycle performances at room temperature.

목차

1. 서론

2. 실험방법

3. 결과 및 토의

4. 결론

CONFLICTS OF INTEREST

ACKNOWLEDGEMENTS

REFERENCES

키워드

Anode Binder Silicon Solid-state batteries