End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries

One cannot claim solar panels to be recyclable, in a circular economy sense, until scientists find a way to harvest and repurpose their most valuable components, and silicon is one of them. The photovoltaic (PV) industry uses high‐quality silicon wafers for the fabrication of solar cells. PV recycle...

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Autores principales:	Md Mokhlesur Rahman, Srikanth Mateti, Irin Sultana, Chunping Hou, Alexey Falin, Pavel Cizek, Alexey M. Glushenkov, Ying Chen
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	ball milling circular materials electronic industries nanosilicon recycling photovoltaic panels Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/fa80efe2df6142c7aee783da7498e4a4
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id	oai:doaj.org-article:fa80efe2df6142c7aee783da7498e4a4
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spelling	oai:doaj.org-article:fa80efe2df6142c7aee783da7498e4a42021-11-04T09:03:08ZEnd‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries2699-941210.1002/aesr.202100081https://doaj.org/article/fa80efe2df6142c7aee783da7498e4a42021-11-01T00:00:00Zhttps://doi.org/10.1002/aesr.202100081https://doaj.org/toc/2699-9412One cannot claim solar panels to be recyclable, in a circular economy sense, until scientists find a way to harvest and repurpose their most valuable components, and silicon is one of them. The photovoltaic (PV) industry uses high‐quality silicon wafers for the fabrication of solar cells. PV recycled silicon, however, is not suitable for any application without further purification, as it contains various impurities. Herein, an advanced repurpose process of chemical etching combined ball milling is developed and optimized to produce high‐quality nanosilicon recovered from end‐of‐life PV panels and subsequent nanosilicon/graphite hybrid formation for the application in lithium‐ion batteries. The crucial feature of the hybrid's structure is that the obtained PV nanosilicon with various shapes and sizes is dispersed homogeneously and wrapped by graphitic matrix under ball milling, creating a superior electrode architecture. The PV nanosilicon/graphite anode consisting of 5 wt% nanosilicon exhibits promising electrochemical performance with a charge capacity of 426 mAh g−1 after 600 cycles, a capacity retention of 70%, a rate capability of 215 mAh g−1 at 5 C, and an average coulombic efficiency of ≈99.4%. By converting PV recycled silicon to exceptionally high‐value nanosilicon, the value of the recycled material is maximized.Md Mokhlesur RahmanSrikanth MatetiIrin SultanaChunping HouAlexey FalinPavel CizekAlexey M. GlushenkovYing ChenWiley-VCHarticleball millingcircular materialselectronic industriesnanosiliconrecycling photovoltaic panelsEnvironmental technology. Sanitary engineeringTD1-1066Renewable energy sourcesTJ807-830ENAdvanced Energy & Sustainability Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ball milling circular materials electronic industries nanosilicon recycling photovoltaic panels Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
spellingShingle	ball milling circular materials electronic industries nanosilicon recycling photovoltaic panels Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830 Md Mokhlesur Rahman Srikanth Mateti Irin Sultana Chunping Hou Alexey Falin Pavel Cizek Alexey M. Glushenkov Ying Chen End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
description	One cannot claim solar panels to be recyclable, in a circular economy sense, until scientists find a way to harvest and repurpose their most valuable components, and silicon is one of them. The photovoltaic (PV) industry uses high‐quality silicon wafers for the fabrication of solar cells. PV recycled silicon, however, is not suitable for any application without further purification, as it contains various impurities. Herein, an advanced repurpose process of chemical etching combined ball milling is developed and optimized to produce high‐quality nanosilicon recovered from end‐of‐life PV panels and subsequent nanosilicon/graphite hybrid formation for the application in lithium‐ion batteries. The crucial feature of the hybrid's structure is that the obtained PV nanosilicon with various shapes and sizes is dispersed homogeneously and wrapped by graphitic matrix under ball milling, creating a superior electrode architecture. The PV nanosilicon/graphite anode consisting of 5 wt% nanosilicon exhibits promising electrochemical performance with a charge capacity of 426 mAh g−1 after 600 cycles, a capacity retention of 70%, a rate capability of 215 mAh g−1 at 5 C, and an average coulombic efficiency of ≈99.4%. By converting PV recycled silicon to exceptionally high‐value nanosilicon, the value of the recycled material is maximized.
format	article
author	Md Mokhlesur Rahman Srikanth Mateti Irin Sultana Chunping Hou Alexey Falin Pavel Cizek Alexey M. Glushenkov Ying Chen
author_facet	Md Mokhlesur Rahman Srikanth Mateti Irin Sultana Chunping Hou Alexey Falin Pavel Cizek Alexey M. Glushenkov Ying Chen
author_sort	Md Mokhlesur Rahman
title	End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
title_short	End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
title_full	End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
title_fullStr	End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
title_full_unstemmed	End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries
title_sort	end‐of‐life photovoltaic recycled silicon: a sustainable circular materials source for electronic industries
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/fa80efe2df6142c7aee783da7498e4a4
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End‐of‐Life Photovoltaic Recycled Silicon: A Sustainable Circular Materials Source for Electronic Industries

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