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Millisecond Conversion of Photovoltaic Silicon Waste to Binder-Free High Silicon Content Nanowires Electrodes

文献类型：期刊论文

作者Lu, Jijun1,2; Liu, Siliang3; Liu, Junhao1; Qian, Guoyu1; Wang, Dong1; Gong, Xuzhong1; Deng, Yida3; Chen, Yanan3; Wang, Zhi1,2
刊名ADVANCED ENERGY MATERIALS
出版日期2021-09-01
页码10
ISSN号1614-6832
关键词electrothermal shock high silicon content lithium-ion batteries nanowires electrodes photovoltaic silicon waste
DOI10.1002/aenm.202102103
英文摘要High-value recycling of photovoltaic silicon waste is an important path to achieve "carbon neutrality." However, the current remelting and refining technology of Si waste (WSi) is tedious with high secondary energy consumption and repollution, and it can only achieve its relegation recycling. Here, an efficient and high-value recycling strategy is proposed in which photovoltaic WSi is converted to high energy density and stable Si nanowires (SiNWs) electrodes for lithium-ion batteries (LIBs) in milliseconds. The flash heating and quenching (approximate to 2100 K, 10 ms) provided by an electrothermal shock drive directional diffusion of Si atoms to form SiNWs within the confined space between graphene oxide films. As a result, the SiNWs self-assemble to form a conductive SiNWs-reduced graphene oxide composite (SiNWs@RGO). When applied as a binder-free anode for LIBs the SiNWs@RGO electrode exhibits an ultrahigh initial Coulombic efficiency (89.5%) and robust cycle stability (2381.7 mAh g(-1) at 1 A g(-1) for more than 500 cycles) at high Si content of 76%. Moreover, full LIBs constructed using the commercial Li[Ni0.8Co0.16Al0.04]O-2 cathode exhibit impressive cycling performance. In addition, this clean high-value recycling method will promote economic, environmentally friendly, and sustainable development of renewable energy.
WOS关键词ANODES ; NANOPARTICLES ; COMPOSITE ; REDUCTION ; GROWTH
资助项目National Key R&D Program of China[2018YFC1901801] ; National Natural Science Foundation of China[52074255] ; National Natural Science Foundation of China[51704271] ; National Natural Science Foundation of China[U1702251] ; National Natural Science Foundation of China[91963113]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000691606000001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/50024]  
专题中国科学院过程工程研究所
通讯作者Liu, Junhao; Chen, Yanan; Wang, Zhi
作者单位1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Inst Proc Engn,Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100039, Peoples R China
3.Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ,Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Jijun,Liu, Siliang,Liu, Junhao,et al. Millisecond Conversion of Photovoltaic Silicon Waste to Binder-Free High Silicon Content Nanowires Electrodes[J]. ADVANCED ENERGY MATERIALS,2021:10.
APA Lu, Jijun.,Liu, Siliang.,Liu, Junhao.,Qian, Guoyu.,Wang, Dong.,...&Wang, Zhi.(2021).Millisecond Conversion of Photovoltaic Silicon Waste to Binder-Free High Silicon Content Nanowires Electrodes.ADVANCED ENERGY MATERIALS,10.
MLA Lu, Jijun,et al."Millisecond Conversion of Photovoltaic Silicon Waste to Binder-Free High Silicon Content Nanowires Electrodes".ADVANCED ENERGY MATERIALS (2021):10.

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来源：过程工程研究所

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