期刊
NANOTECHNOLOGY
卷 32, 期 50, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6528/ac238f
关键词
phosphorous-based anode; confinement; tetraphosphorus tetraselenide; lithium ion battery
资金
- National Science Foundation of China (NSFC) [51802039, 22101049]
- NSF of Fujian Province [2019J01266, 2020J05031]
- Award Program for Fujian Minjiang Scholar Professorship
This study developed tetraphosphorus tetraselenide nanoparticles confined within porous carbon as a new anode material for lithium-ion batteries, exhibiting high electrical conductivity and excellent cycling stability, providing new guidance for the development of high-performance energy storage devices.
The exploration of advanced anode materials through rational structure/phase design is the key to developing high-performance rechargeable batteries. Herein, tetraphosphorus tetraselenide (Se4P4) nanoparticles confined within porous carbon (named SeP@C) are developed for lithium-ion batteries. The designed SeP@C shows a set of structural/compositional advantages as lithium-ion battery anodes including high electrical conductivity, low ion diffusion barrier, and relieved lithiation stress. Consequently, the SeP@C electrode displays superior comprehensive lithium storage performance, e.g., high reversible capacity (640.8 mA h g(-1) at 0.1 A g(-1)), excellent cycling stability (500 cycles with respective capacity retention of over or nearly 100%), and good rate capability, representing a comparable lithium storage performance in reported phosphide-based anodes. More significantly, it shows excellent energy storage properties in lithium-ion full cells which can light up 85 red LEDs for over 3.2 h. This work offers an advanced electrode construction guidance of phosphorous-based anodes for the development of high-performance energy storage devices.
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