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Good Cycling Stabilities of Sn/SnO 2 /C/S Composite Electrodes with Introduced Active Tin Atoms in Li-S Batteries.

التفاصيل البيبلوغرافية
العنوان: Good Cycling Stabilities of Sn/SnO 2 /C/S Composite Electrodes with Introduced Active Tin Atoms in Li-S Batteries.
المؤلفون: Wang C; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China.; Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China., Lang R; Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China., Xiao Q; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China., Yang X; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China., Yan H; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China., Qi J; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China., Liu S; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China., Wang J; School of Materials Engineering, Xi'an Aeronautical Institute, Xi'an 710077, China.
المصدر: Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2024 Jun 18; Vol. 40 (24), pp. 12697-12708. Date of Electronic Publication: 2024 Jun 06.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 9882736 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5827 (Electronic) Linking ISSN: 07437463 NLM ISO Abbreviation: Langmuir Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Washington, DC : American Chemical Society, c1985-
مستخلص: Polysulfides are easily dissolved in the electrolyte of Li-S batteries after long cycles. Sn atom modification electrodes are beneficial for improving cycling stabilities of Li-S batteries. However, the influence of Sn atoms on the structure and electrochemical performance of SnO 2 /C composite materials is not explored. Sn/SnO 2 /C composite materials are developed as sulfur carriers in Li-S batteries in our work. In addition, the cycling stability mechanism of Sn/SnO 2 /C/S composite electrodes is also elucidated. Results show that introduced Sn/SnO 2 /C/S composite electrodes display good cycling stability (420.1 mAh·g -1 at 1C after 1000 cycles) in Li-S batteries. The sulfur load of Sn/SnO 2 /C/S composite electrodes is 80 wt % (2 mg -1 ·cm -2 ). The introduction of Sn into Sn/SnO 2 /C/S composite electrodes plays three roles. The first role is to enhance the structural stability of SnO 2 . The second role is to help adsorb active sulfur ions. The last role is to promote the electron transportation ability during the initial discharging/charging process. Sn/SnO 2 /C/S composite electrodes are beneficial for inhibiting the dissolution of polysulfides in electrolytes after long cycles.
تواريخ الأحداث: Date Created: 20240606 Latest Revision: 20240618
رمز التحديث: 20240619
DOI: 10.1021/acs.langmuir.4c01244
PMID: 38843403
قاعدة البيانات: MEDLINE
الوصف
تدمد:1520-5827
DOI:10.1021/acs.langmuir.4c01244