Investigation of the Properties of Anode Electrodes for Lithium–Ion Batteries Manufactured Using Cu, and Si-Coated Carbon Nanowall Materials

May Tran Thi, Chulsoo Kim, Seokhun Kwon, Hyunil Kang, Jang Myoun Ko, Junghyun Kim and Wonseok Choi ()
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May Tran Thi: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Chulsoo Kim: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Seokhun Kwon: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Hyunil Kang: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Jang Myoun Ko: Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Junghyun Kim: Department of Advanced Materials Science and Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
Wonseok Choi: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Republic of Korea

Energies, 2023, vol. 16, issue 4, 1-14

Abstract: The fabrication of high-capacity, binder-free Li–ion battery anodes using a simple and efficient manufacturing process was reported in this research. The anode material for lithium–ion batteries utilized is a combination of two-dimensional (2D) carbon nanowalls (CNWs) and Cu nanoparticles (improved rate performance and capacity retention) or Si (high capacity) nanoparticles. A methane (CH 4 ) and hydrogen (H 2 ) gas mixture was employed to synthesize CNWs on copper foil through microwave plasma-enhanced chemical vapor deposition (PECVD). The Cu or Si nanoparticles were then deposited on the CNW surface using an RF magnetron sputtering equipment with four-inch targets. To analyze the electrochemical performance of the LIBs, CR2032 coin-type cells were fabricated using anode materials based on CNWs and other components. It was confirmed that the Cu−CNW demonstrates improved rate performance, increased specific capacity, and capacity retention compared with traditional anodes. Additionally, CNW combined with Si nanoparticles has enhanced the capacity of LIB and minimized volume changes during LIB operation.

Keywords: coper; silicon; carbon nanowall; PECVD; RF magnetron sputter; anode (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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