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| Upcycling of photovoltaic silicon waste into ultrahigh areal-loaded silicon nanowire electrodes through electrothermal shock | |
| 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 | |
| 2022-04-01 | |
| Source Publication | ENERGY STORAGE MATERIALS
 |
| ISSN | 2405-8297 |
| Volume | 46Pages:594-604 |
| Abstract | 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. |
| Keyword | Si nanowire electrode High areal loading lithium-ion battery Large gradient thermal field Photovoltaic Si waste |
| DOI | 10.1016/j.ensm.2022.01.051 |
| Language | 英语 |
| WOS Keyword | ANODE MATERIAL ; HIGH-CAPACITY ; SI ; GROWTH |
| Funding Project | 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 Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation |
| WOS ID | WOS:000783277100002 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/52651 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Junhao; Qian, Guoyu; Wang, Zhi |
| Affiliation | 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 |
| Recommended Citation 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. |
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