Title:
NITROGEN-DOPED AND CARBON MATRIX-ENCAPSULATED SILICON-CARBON NANOFIBER COMPOSITE, METHOD FOR PREPARING SAME, AND SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/239046
Kind Code:
A1
Abstract:
The present invention relates to a nitrogen-doped and carbon matrix-encapsulated three-dimensional network silicon nanoparticle-carbon nanofiber composite, a method for preparing same, and a secondary battery comprising same. A method for preparing the silicon-carbon nanofiber composite, according to an embodiment, comprises the steps of: preparing modified silicon nanoparticles which are surface-modified with an amino group (-NH2); preparing a first mixture comprising the modified silicon nanoparticles, carbon nanofibers, and citric acid; manufacturing an assembly by electrostatically self-assembling the first mixture and graphene oxide (GO); preparing an intermediate by hydrothermally synthesizing a second mixture comprising the assembly, melamine, and formaldehyde resin; and calcining the intermediate.
Inventors:
LEE CHANG SEOP (KR)
CONG RUYE (KR)
CONG RUYE (KR)
Application Number:
PCT/KR2023/005358
Publication Date:
December 14, 2023
Filing Date:
April 20, 2023
Export Citation:
Assignee:
UNIV KEIMYUNG IACF (KR)
International Classes:
H01M4/36; C01B32/158; C01B32/168; C01B32/194; C01B33/02; H01M4/02; H01M4/38; H01M4/587; H01M10/0525
Foreign References:
| KR101836157B1 | 2018-03-08 | |||
| KR101604003B1 | 2016-03-17 |
Other References:
CONG RUYE, PARK HYUN-HO, JO MINSANG, LEE HOCHUN, LEE CHANG-SEOP: "Synthesis and Electrochemical Performance of Electrostatic Self-Assembled Nano-Silicon@N-Doped Reduced Graphene Oxide/Carbon Nanofibers Composite as Anode Material for Lithium-Ion Batteries", MOLECULES, MDPI AG, CH, vol. 26, no. 16, 10 August 2021 (2021-08-10), CH , pages 4831, XP093114507, ISSN: 1420-3049, DOI: 10.3390/molecules26164831
CONG RUYE, CHOI JIN-YEONG, SONG JU-BEOM, JO MINSANG, LEE HOCHUN, LEE CHANG-SEOP: "Characteristics and electrochemical performances of silicon/carbon nanofiber/graphene composite films as anode materials for binder-free lithium-ion batteries", SCIENTIFIC REPORTS, vol. 11, no. 1, 1 December 2021 (2021-12-01), XP055952042, DOI: 10.1038/s41598-020-79205-1
CONG RUYE, JO MINSANG, MARTINO ANGELICA, PARK HYUN-HO, LEE HOCHUN, LEE CHANG-SEOP: "Three-dimensional network of nitrogen-doped carbon matrix-encapsulated Si nanoparticles/carbon nanofibers hybrids for lithium-ion battery anodes with excellent capability", SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, US, vol. 12, no. 1, 26 September 2022 (2022-09-26), US , pages 16002, XP093114505, ISSN: 2045-2322, DOI: 10.1038/s41598-022-20026-9
CONG RUYE, CHOI JIN-YEONG, SONG JU-BEOM, JO MINSANG, LEE HOCHUN, LEE CHANG-SEOP: "Characteristics and electrochemical performances of silicon/carbon nanofiber/graphene composite films as anode materials for binder-free lithium-ion batteries", SCIENTIFIC REPORTS, vol. 11, no. 1, 1 December 2021 (2021-12-01), XP055952042, DOI: 10.1038/s41598-020-79205-1
CONG RUYE, JO MINSANG, MARTINO ANGELICA, PARK HYUN-HO, LEE HOCHUN, LEE CHANG-SEOP: "Three-dimensional network of nitrogen-doped carbon matrix-encapsulated Si nanoparticles/carbon nanofibers hybrids for lithium-ion battery anodes with excellent capability", SCIENTIFIC REPORTS, NATURE PUBLISHING GROUP, US, vol. 12, no. 1, 26 September 2022 (2022-09-26), US , pages 16002, XP093114505, ISSN: 2045-2322, DOI: 10.1038/s41598-022-20026-9
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
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