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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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그린레이저를 이용한 리튬 이온 배터리 버스바 용접부의 응고균열과 성분 분포 상관관계
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유예지, Jeong-Hoi Koo, 강희신, 천은준
Korean J. Met. Mater.
2025;63(5):356-369. Published online 2025 May 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.5.356
Abstract
This study investigates the solidification cracking susceptibility of Cu-Steel laser welds used for cylindrical lithium-ion battery busbars. The research utilized green laser technology with three distinct beam patterns: Linear, Spiral + Wobble, and Circular + Wobble. Additionally, Ni-P coating layers of varying thicknesses (10, 50, 100 μm) were applied to.....
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Korean J. Met. Mater.
2024;62(8):624-630. Published online 2024 Jul 31
DOI:
https://doi.org/10.3365/KJMM.2024.62.8.624
Abstract
We employed electrophoretic deposition (EPD) using AC voltage to prepare lithium iron phosphate (LFP) Li-ion battery electrodes with varying the LFP thickness, to compare bulk-limited electro chemical reaction with the surface-limited electrochemical reactions. We analyzed the electrochemical performances of the thin and thick LFP electrodes at various scan rates. They.....
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Web of Science 1
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Forsterite 리튬 이온 배터리 음극 제조 및 전기화학적 반응 탐침
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김동주, 박병남
Korean J. Met. Mater.
2022;60(11):851-857. Published online 2022 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2022.60.11.851
Abstract
In an effort to minimize irreversible capacity loss and volume expansion, research on Si nanocomposite materials with a SiO
x
/Mg
2
SiO
4
/SiO
x
structure through a magnesiothermic reduction process (MTR) has attracted much attention from researchers. Mg
2
SiO
4
(forsterite) has been shown to improve the initial coulombic efficiency (ICE) by minimizing the irreversible capacity loss due.....
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Web of Science 2
Crossref 1
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코발트 산화물 리튬 이온 배터리 용량 및 사이클 안정성에 대한 코발트 산화물/첨가제 계면 및 결정립 크기의 영향
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박병남
Korean J. Met. Mater.
2022;60(6):448-454. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.448
Abstract
Due to its high theoretical capacity in the conversion reaction, Co
3
O
4
, a transition metal oxide, has been attracting attention as an anode material for lithium-ion batteries. Comparing conventional slurry method with the electrophoretic deposition (EPD) method without additives (conductive agents and binders), we investigated the effect of the Co
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/additive interface.....
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Web of Science 3
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Korean J. Met. Mater.
2021;59(9):670-676. Published online 2021 Aug 4
DOI:
https://doi.org/10.3365/KJMM.2021.59.9.670
Abstract
In this work, MnO
2
nanoparticles were embedded in a carbon matrix as a porous composite, fabricated using a simple chemical route followed by low-temperature annealing, with activated carbon (AC) as the carbon source in the composite preparation. The porous MnO
2
/carbon structures contained some selective nanoparticles coated with carbon. The structural.....
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4점 탐침 측정법을 이용한 고상전해질계면의 비저항 측정
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박준형, 최용석, 심형철, 안재평, 이재철
Korean J. Met. Mater.
2019;57(1):67-70. Published online 2018 Dec 14
DOI:
https://doi.org/10.3365/KJMM.2019.57.1.67
Abstract
Lack of understanding on the electrical properties of the solid electrolyte interface (SEI) has been one of the major hurdles for developing fast charging Li-ion batteries. Here, we report our preliminary experimental result on the measurement of the electrical resistivity of SEI using the direct-contact technique based on electron microscopy.....
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Web of Science 2
Crossref 2
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