| Title |
Creating value added nano silicon anodes from end-of-life photovoltaic modules: recovery, nano structuring, and the impact of ball milling and binder on its electrochemical performance |
| ID_Doc |
10308 |
| Authors |
Nelson, A; Mateti, S; Chen, Y; Sharma, N; Han, Q; Rahman, MM |
| Title |
Creating value added nano silicon anodes from end-of-life photovoltaic modules: recovery, nano structuring, and the impact of ball milling and binder on its electrochemical performance |
| Year |
2024 |
| Published |
Energy Materials, 4, 6 |
| DOI |
10.20517/energymater.2024.04 |
| Abstract |
Recovery of silicon from end-of-life photovoltaic (PV) modules, purification, conversion to nano silicon (nano-Si), and subsequent application as an anode in lithium-ion batteries is challenging but can significantly influence the circular economy. Currently, a complete technology consisting of cross-contamination-free recovery of silicon wafers from end-of-life PV modules, a low-cost environmentally friendly purification process of the recovered PV silicon, a high yield conversion process of the recovered PV silicon into nano-Si, and its subsequent application in lithium-ion batteries is unavailable. This study provides a complete package including cross-contamination-free recovery, economical purification, reliable conversion to nano-Si, and efficient application of the end-of-life PV nano-Si in lithium-ion batteries. Hydrofluoric acid-free recovery and purification processes are demonstrated which can deliver large quantities of high-purity (>= >= 99) silicon. In addition, the subsequent ball milling process produces very distinct nano-Si with different shapes and sizes. This study also creates a very effective nano-Si anode through in-situ crosslinking of water-soluble carboxymethyl cellulose and poly (acrylic acid) precursors. The integration of distinct PV nano-Si and water-soluble carboxymethyl cellulose-poly (acrylic acid) crosslink binder opens distinct possibilities to develop silicon-based practical anode for next generation low-cost lithium-ion batteries to power cell phones to electric vehicles. |
| Author Keywords |
nano silicon; crosslink binder; silicon anode; lithium-ion batteries; End-of-life photovoltaic module |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Emerging Sources Citation Index (ESCI) |
| EID |
WOS:001267142300003 |
| WoS Category |
Energy & Fuels; Materials Science, Multidisciplinary |
| Research Area |
Energy & Fuels; Materials Science |
| PDF |
https://f.oaes.cc/xmlpdf/b11a97ee-6f69-447f-ac77-d5099275e100/em4004.pdf
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