3D MoS2 foam integrated with carbon paper as binder-free anode for high performance sodium-ion batteries

Autor:	Kaixin Zhu, Fangying Zheng, Yunchuan Tu, Zeyu Wei, Yan Yang, Jiao Zhao, Yimin Zhu, Huicong Xia, Dehui Deng, Xiangyu Meng, Jianan Zhang
Rok vydání:	2022
Předmět:	High rate business.product_category Materials science Macropore Sodium Energy Engineering and Power Technology chemistry.chemical_element Conductivity Electrochemistry Anode Fuel Technology Chemical engineering chemistry Carbon paper Porosity business Energy (miscellaneous)
Zdroj:	Journal of Energy Chemistry. 65:26-33
ISSN:	2095-4956
Popis:	Molybdenum sulfide (MoS2) with well-designed porous structure has the potential to be great electrode materials in sodium-ion batteries due to its high theoretical capacity and abundant resource, however, hindered by its intrinsic low conductivity and stability. Herein, MoS2 with 3D macroporous foam structure and high conductivity was obtained through SiO2 templates and integrated with carbon paper (3D F-MoS2/CP). It has showed superior specific capacity (225 mA h g−1, 0.4–3 V) and cycling stability (1000 cycles) at high rate (2000 mA g−1), with a low decay rate (0.033% per cycle) in sodium-ion batteries. The excellent electrochemical performance may originate from its unique integrated structure: 3D MoS2 macropores providing high surface area and abundant transfer channels while carbon paper enhancing the conductivity of MoS2 and avoiding unnecessary side reactions brought by binder addition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e853193ecf19d86989b0a6824532768 https://doi.org/10.1016/j.jechem.2021.05.021 Zobrazit plný text záznamu Full Text from ScienceDirect