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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.6
- 수록면
- 169 - 175 (7page)
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초록· 키워드
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In lithium-ion batteries (LIBs), the stress induced by the volume change of an electrode during charge–discharge processes may often cause the mechanical integrity of the electrode to degrade. Polymer binders with enhanced mechanical properties are preferred for improved mechanical integrity and cycling stability of the electrode. In addition, given that sliding and shearing between the polymer binder and components in the electrode may readily occur, frictional and adhesion characteristics of the polymer binder may play a critical role in the mechanical integrity of the electrode. In this study, frictional and adhesion characteristics of polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) were investigated using a colloidal probe atomic force microscope. Friction loops were obtained under various normal forces ranging from 0 to 159 nN in air and electrolyte and then the interfacial shear strengths of PAN and PVDF in air were calculated to be 1.4 ± 0.5 and 1.3 ± 0.3 MPa, respectively. The results show that in electrolyte, interfacial shear strength of PAN decreased slightly (1.2 ± 0.2 MPa), whereas that of PVDF decreased drastically (0.06 ± 0.01 MPa). Decreases in mechanical properties and adhesion in electrolyte may be responsible for the decrease in interfacial shear strength in electrolyte. The findings from this study may be helpful in developing polymer binders to improve the mechanical integrity of electrodes in LIBs.
목차
Abstract
1. 서론
2. 연구방법 및 내용
3. 결과 및 고찰
4. 결론
References
참고문헌 (17)
참고문헌 신청
Wu, H. / 2012 / Designing Nanostructured Si anodes for High Energy Lithium Ion Batteries / Nano Today 7:414~429
Beaulieu, L. Y. / 2003 / Reaction of Li with Alloy Thin Films Studied by in situ AFM / J. Elec-trochem. Soc. 150:A1457~A1464
Magasinski, A. / 2010 / Toward Efficient Binders for Li-ion Battery Si-based Anodes: Polyacrylic acid / ACS Appl. Mater. Interfaces 2:3004~3010
Yang, H. S. / 2016 / Performance Enhancement of Silicon Alloy-based Anodes using Thermally Treated Poly (amide imide) as a Polymer Binder for High Perfor-mance Lithium-ion Batteries / Langmuir 32:3300~3307
Ling, M. / 2015 / Multifunctional SA-PProDOT Binder for Lithium Ion Batteries / Nano Lett. 15:4440~4447
Beaulieu, L. Y. / 2003 / Reaction of Li with Alloy Thin Films Studied by in situ AFM / J. Elec-trochem. Soc. 150:A1457~A1464
Magasinski, A. / 2010 / Toward Efficient Binders for Li-ion Battery Si-based Anodes: Polyacrylic acid / ACS Appl. Mater. Interfaces 2:3004~3010
Yang, H. S. / 2016 / Performance Enhancement of Silicon Alloy-based Anodes using Thermally Treated Poly (amide imide) as a Polymer Binder for High Perfor-mance Lithium-ion Batteries / Langmuir 32:3300~3307
Ling, M. / 2015 / Multifunctional SA-PProDOT Binder for Lithium Ion Batteries / Nano Lett. 15:4440~4447
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UCI(KEPA) : I410-ECN-0101-2019-551-000861800