| Dendrite-growth Suppressible Poly(ethylene)-based Separator Functionalized by Waste Oyster Shell Recycling |
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Jun Won Heo1,2, Ji Seong Heo1,2, Jae Woo Jung3, Jang Kyun Kim2,3, Taeeun Yim1,2 |
1Advanced Batteries Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
2Research Institute of Basic Sciences, College of Natural Science, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
3Marine Ecology and Green Aquaculture laboratory, Department of Marine Science, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea |
Correspondence:
Jang Kyun Kim, Tel: +82-32-835-8093, Fax: +82-32-835-0762,
Email: jang.kim@inu.ac.kr
Taeeun Yim, Tel: +82-32-835-8093, Fax: +82-32-835-0762,
Email: yte0102@inu.ac.kr
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Received: 4 February 2025 • Accepted: 28 February 2025 |
| Abstract |
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Although lithium-metal batteries (LMBs) have attracted significant attention as advanced energy storage systems, the rapid growth of dendritic Li causes drastic thermal runaway because it is hard to control the growth of dendritic Li using conventional polyethylene (PE) separators. This study aims to develop dendrite-suppressible PE separators by incorporating waste oyster shells (OS). Although OS are considered marine wastes, they have a high shear modulus that can suppress Li dendrite growth, suggesting that incorporating OS into the PE separator would improve the mechanical properties of the PE separator. The OS are embedded onto the PE separator by the blade-casting method, and analysis of the thermal and electrochemical behaviors indicates that the OS-incorporated PE separator is compatible with the Li metal anode. Consequently, the OS-incorporated PE separator exhibits stable cycling behavior in the Li||Li symmetric cell, in addition to the Li||LiMn0.6Fe0.4PO4 (LMFP64), compared to that cycled with unmodified PE. |
| Keywords:
Lithium metal battery, Separator, Oyster shell, Coating, Recycling |
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