콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A coupled chemo-mechanical model to study the effects of adhesive strength on the electrochemical performance of silicon electrodes for advanced lithium ion batteries
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-12
- 저자명 Williams Agyei Appiah, Joonam Park, Seoungwoo Byun, Inseong Cho, Attila Mozer, 유명현, 이용민
- 학술지명 Journal of Power Sources
- 발행처명 Elsevier
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.jpowsour.2018.06.079
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
A coupled chemo-mechanical model which considers the contact resistance as well as the influence of the attractive forces inside the contact area between the electrode and current collector was developed to evaluate the effects of the adhesive strength of a binding material on the electrochemical performance of silicon-based lithium-ion batteries. The increase in contact resistance between the electrode and current collector was introduced as a factor that reduces the electrochemical performance of the cell. The model predictions were validated with experimental data from coin-type half-cells composed of Li metal, Si electrodes, and Cu current collectors coated with binding materials with different adhesive strengths. The contact resistance increased with an increasing number of cyclic current rate. The adhesive strength decreased with cyclic current rate. The proposed model was used to investigate the effects of adhesive strength and various cell design parameters on the specific capacity of the Si-based Li-ion cells.
