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Upcycling of photovoltaic silicon waste into ultrahigh areal-loaded silicon nanowire electrodes through electrothermal shock

文献类型：期刊论文

作者Lu, Jijun1,2,3; Liu, Junhao1,2; Gong, Xuzhong1,2; Pang, Sheng1,2,3; Zhou, Chunyue1,2,3; Li, Haixia1,2; Qian, Guoyu1,2; Wang, Zhi1,2,3
刊名ENERGY STORAGE MATERIALS
出版日期2022-04-01
卷号46页码:594-604
关键词Si nanowire electrode High areal loading lithium-ion battery Large gradient thermal field Photovoltaic Si waste
ISSN号2405-8297
DOI10.1016/j.ensm.2022.01.051
英文摘要Upcycling of photovoltaic silicon (Si) waste to produce high-energy-density energy storage materials represents an effective way to achieve carbon neutrality. However, at present, photovoltaic Si waste (WSi) can only be suitable for degraded utilization because WSi recycling processes are limited by deep oxidation, entrainment of trace impurities, and structural reconstruction difficulties. Here, we propose an electrothermal shock method to convert photovoltaic WSi directly into ultrahigh areal-loaded (4.02 mg cm(-2)) silicon nanowire (SiNW) electrodes. High gradient thermal fields (similar to 10(4) K s(-1)) are produced to drive the formation and deposition of gaseous Si molecules using the easy oxidation characteristics of the WSi powder. Carbon fiber cloth is used as both a heater and an in-situ growth substrate for the SiNWs to construct SiNW-carbon cloth self-supporting electrode (SiNWs@CC) structures. When used as a binder-free anode for lithium-ion batteries, it exhibits ultra-high areal capacity (3.2 mAh cm(-2) for 600 cycles, capacity retention rate > 83%) and long-cycle stability (1706.2 mAh g(-1) at 1 A g(-1) after 1800 cycles). A full battery assembled using a commercial LiFePO4 cathode also demonstrates stable cycling performance ( > 91.2% initial capacity maintained at 0.5 C for 250 cycles). Such an upcycling strategy will help to promote environmentally friendly, economical, and sustainable development of the photovoltaic and energy storage industries.
WOS关键词ANODE MATERIAL ; HIGH-CAPACITY ; SI ; 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[51934006] ; National Natural Science Foundation of China[21878299] ; Beijing Natural Science Foundation[2192055]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000783277100002
出版者ELSEVIER
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/52650]  
专题中国科学院过程工程研究所
通讯作者Liu, Junhao; Qian, Guoyu; Wang, Zhi
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Res, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Jijun,Liu, Junhao,Gong, Xuzhong,et al. Upcycling of photovoltaic silicon waste into ultrahigh areal-loaded silicon nanowire electrodes through electrothermal shock[J]. ENERGY STORAGE MATERIALS,2022,46:594-604.
APA Lu, Jijun.,Liu, Junhao.,Gong, Xuzhong.,Pang, Sheng.,Zhou, Chunyue.,...&Wang, Zhi.(2022).Upcycling of photovoltaic silicon waste into ultrahigh areal-loaded silicon nanowire electrodes through electrothermal shock.ENERGY STORAGE MATERIALS,46,594-604.
MLA Lu, Jijun,et al."Upcycling of photovoltaic silicon waste into ultrahigh areal-loaded silicon nanowire electrodes through electrothermal shock".ENERGY STORAGE MATERIALS 46(2022):594-604.

入库方式： OAI收割

来源：过程工程研究所

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