Abstract
The rapid increase of waste liquid-crystal display (LCD) is becoming a serious problem. Among the constituents of waste LCD panels, glass substrates are not completely recycled and buried in landfills because of the lack of recycling technologies. In order to establish a recycling strategy with sustainable process and application, we fabricated silicon (Si) materials into lithium-ion battery (LIB) anodes through the magnesiothermic reduction of waste LCD glasses. To synthesize high-quality Si materials, an optimized pretreatment process is proposed to remove undesirable contents from waste LCD glasses. In order to achieve high areal capacity for practical applications, we conducted facile and cost-effective electrode maturation, which improves the cohesion and adhesion of the Si anodes. The electrochemical measurement results showed that the waste LCD glass-derived Si electrodes exhibited high areal and gravimetric capacities of 6.3 mA h cm-2 and 3438 mA h g-1, respectively, in the initial cycle. The electrodes maintained a high areal capacity of 3.1 mA h cm-2 during the 100th cycle. This reduced Si materials and electrode-manufacturing process can be a cost-effective and sustainable recycling technology for waste LCD glass management and anode materials for LIBs.
| Original language | English |
|---|---|
| Pages (from-to) | 15329-15338 |
| Number of pages | 10 |
| Journal | ACS Sustainable Chemistry and Engineering |
| Volume | 7 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2019 Sep 16 |
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Keywords
- anode
- lithium-ion batteries
- magnesiothermic reduction
- silicon
- waste LCD glass
ASJC Scopus subject areas
- Chemistry(all)
- Environmental Chemistry
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
Cite this
Waste Liquid-Crystal Display Glass-Directed Fabrication of Silicon Particles for Lithium-Ion Battery Anodes. / Kang, Woohyeon; Kim, Jae Chan; Noh, Jun Hong; Kim, Dong Wan.
In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 18, 16.09.2019, p. 15329-15338.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Waste Liquid-Crystal Display Glass-Directed Fabrication of Silicon Particles for Lithium-Ion Battery Anodes
AU - Kang, Woohyeon
AU - Kim, Jae Chan
AU - Noh, Jun Hong
AU - Kim, Dong Wan
PY - 2019/9/16
Y1 - 2019/9/16
N2 - The rapid increase of waste liquid-crystal display (LCD) is becoming a serious problem. Among the constituents of waste LCD panels, glass substrates are not completely recycled and buried in landfills because of the lack of recycling technologies. In order to establish a recycling strategy with sustainable process and application, we fabricated silicon (Si) materials into lithium-ion battery (LIB) anodes through the magnesiothermic reduction of waste LCD glasses. To synthesize high-quality Si materials, an optimized pretreatment process is proposed to remove undesirable contents from waste LCD glasses. In order to achieve high areal capacity for practical applications, we conducted facile and cost-effective electrode maturation, which improves the cohesion and adhesion of the Si anodes. The electrochemical measurement results showed that the waste LCD glass-derived Si electrodes exhibited high areal and gravimetric capacities of 6.3 mA h cm-2 and 3438 mA h g-1, respectively, in the initial cycle. The electrodes maintained a high areal capacity of 3.1 mA h cm-2 during the 100th cycle. This reduced Si materials and electrode-manufacturing process can be a cost-effective and sustainable recycling technology for waste LCD glass management and anode materials for LIBs.
AB - The rapid increase of waste liquid-crystal display (LCD) is becoming a serious problem. Among the constituents of waste LCD panels, glass substrates are not completely recycled and buried in landfills because of the lack of recycling technologies. In order to establish a recycling strategy with sustainable process and application, we fabricated silicon (Si) materials into lithium-ion battery (LIB) anodes through the magnesiothermic reduction of waste LCD glasses. To synthesize high-quality Si materials, an optimized pretreatment process is proposed to remove undesirable contents from waste LCD glasses. In order to achieve high areal capacity for practical applications, we conducted facile and cost-effective electrode maturation, which improves the cohesion and adhesion of the Si anodes. The electrochemical measurement results showed that the waste LCD glass-derived Si electrodes exhibited high areal and gravimetric capacities of 6.3 mA h cm-2 and 3438 mA h g-1, respectively, in the initial cycle. The electrodes maintained a high areal capacity of 3.1 mA h cm-2 during the 100th cycle. This reduced Si materials and electrode-manufacturing process can be a cost-effective and sustainable recycling technology for waste LCD glass management and anode materials for LIBs.
KW - anode
KW - lithium-ion batteries
KW - magnesiothermic reduction
KW - silicon
KW - waste LCD glass
UR - http://www.scopus.com/inward/record.url?scp=85072606747&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072606747&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.9b02654
DO - 10.1021/acssuschemeng.9b02654
M3 - Article
AN - SCOPUS:85072606747
VL - 7
SP - 15329
EP - 15338
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
SN - 2168-0485
IS - 18
ER -