Enhanced capacity retention based silicon nanosheets electrode by CMC coating for lithium-ion batteries

Sang Won Park; Jung Hoon Ha; Jeong Min Park; Byung Won Cho; Heon Jin Choi

doi:10.1007/s13391-021-00275-y

Enhanced capacity retention based silicon nanosheets electrode by CMC coating for lithium-ion batteries

Sang Won Park, Jung Hoon Ha, Jeong Min Park, Byung Won Cho, Heon Jin Choi

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Abstract: Si nanosheets (SiNS) as two dimensional Si nanomaterials are promising candidates for anodes of lithium ion batteries (LIBs) by their large surface area and excellent mechanical durability. In this study, we fabricated polymeric binder (carboxymethyl cellulose, CMC) coated SiNS electrodes using a spin-coating process and characterized the electrochemical properties. The CMS coated SiNS electrodes were homogeneously covered with a CMC polymer layer and showed the improved capacity retention with maintaining over 90% of initial capacity after several cycles. The result of electrochemical impedance spectroscopy indicates that the CMC layer provide the chemical stability of Si surface and suppress the continuous growth of the SEI layer. Furthermore, CMC coated layer on SiNS provide improved mechanical stability that maintains the adhesion of SiNS to the current collector during the discharge–charge cycles. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	268-276
Number of pages	9
Journal	Electronic Materials Letters
Volume	17
Issue number	3
DOIs	https://doi.org/10.1007/s13391-021-00275-y
Publication status	Published - 2021 May

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2017R1A2B3011586) and Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (2018M3D1A1058536). This work was also supported by the KIST Institutional Program (Project No. 2E29641).

Publisher Copyright:
© 2021, The Korean Institute of Metals and Materials.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials

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10.1007/s13391-021-00275-y

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title = "Enhanced capacity retention based silicon nanosheets electrode by CMC coating for lithium-ion batteries",

abstract = "Abstract: Si nanosheets (SiNS) as two dimensional Si nanomaterials are promising candidates for anodes of lithium ion batteries (LIBs) by their large surface area and excellent mechanical durability. In this study, we fabricated polymeric binder (carboxymethyl cellulose, CMC) coated SiNS electrodes using a spin-coating process and characterized the electrochemical properties. The CMS coated SiNS electrodes were homogeneously covered with a CMC polymer layer and showed the improved capacity retention with maintaining over 90% of initial capacity after several cycles. The result of electrochemical impedance spectroscopy indicates that the CMC layer provide the chemical stability of Si surface and suppress the continuous growth of the SEI layer. Furthermore, CMC coated layer on SiNS provide improved mechanical stability that maintains the adhesion of SiNS to the current collector during the discharge–charge cycles. Graphic Abstract: [Figure not available: see fulltext.]",

author = "Park, {Sang Won} and Ha, {Jung Hoon} and Park, {Jeong Min} and Cho, {Byung Won} and Choi, {Heon Jin}",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2017R1A2B3011586) and Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (2018M3D1A1058536). This work was also supported by the KIST Institutional Program (Project No. 2E29641). Publisher Copyright: {\textcopyright} 2021, The Korean Institute of Metals and Materials.",

year = "2021",

month = may,

doi = "10.1007/s13391-021-00275-y",

language = "English",

volume = "17",

pages = "268--276",

journal = "Electronic Materials Letters",

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TY - JOUR

T1 - Enhanced capacity retention based silicon nanosheets electrode by CMC coating for lithium-ion batteries

AU - Park, Sang Won

AU - Ha, Jung Hoon

AU - Park, Jeong Min

AU - Cho, Byung Won

AU - Choi, Heon Jin

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2017R1A2B3011586) and Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (2018M3D1A1058536). This work was also supported by the KIST Institutional Program (Project No. 2E29641). Publisher Copyright: © 2021, The Korean Institute of Metals and Materials.

PY - 2021/5

Y1 - 2021/5

N2 - Abstract: Si nanosheets (SiNS) as two dimensional Si nanomaterials are promising candidates for anodes of lithium ion batteries (LIBs) by their large surface area and excellent mechanical durability. In this study, we fabricated polymeric binder (carboxymethyl cellulose, CMC) coated SiNS electrodes using a spin-coating process and characterized the electrochemical properties. The CMS coated SiNS electrodes were homogeneously covered with a CMC polymer layer and showed the improved capacity retention with maintaining over 90% of initial capacity after several cycles. The result of electrochemical impedance spectroscopy indicates that the CMC layer provide the chemical stability of Si surface and suppress the continuous growth of the SEI layer. Furthermore, CMC coated layer on SiNS provide improved mechanical stability that maintains the adhesion of SiNS to the current collector during the discharge–charge cycles. Graphic Abstract: [Figure not available: see fulltext.]

AB - Abstract: Si nanosheets (SiNS) as two dimensional Si nanomaterials are promising candidates for anodes of lithium ion batteries (LIBs) by their large surface area and excellent mechanical durability. In this study, we fabricated polymeric binder (carboxymethyl cellulose, CMC) coated SiNS electrodes using a spin-coating process and characterized the electrochemical properties. The CMS coated SiNS electrodes were homogeneously covered with a CMC polymer layer and showed the improved capacity retention with maintaining over 90% of initial capacity after several cycles. The result of electrochemical impedance spectroscopy indicates that the CMC layer provide the chemical stability of Si surface and suppress the continuous growth of the SEI layer. Furthermore, CMC coated layer on SiNS provide improved mechanical stability that maintains the adhesion of SiNS to the current collector during the discharge–charge cycles. Graphic Abstract: [Figure not available: see fulltext.]

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M3 - Article

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JO - Electronic Materials Letters

JF - Electronic Materials Letters

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ER -

Enhanced capacity retention based silicon nanosheets electrode by CMC coating for lithium-ion batteries

Abstract

Bibliographical note

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UN SDGs

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