Výsledky vyhledávání - "Hyun-Ju Jang"

Improvement in Cycle Characteristics using PVP Based Direct Carbon Coating During High-Rate Charge and Discharge of Li[Ni0.93Co0.07]O2 Nanofibers: Application for Lithium Secondary Batteries

Autor: Hae In Kim, Hyun Ju Jang, Eui Jeong Park, Thuy Thi Bich Tran, Jong-Tae Son

Publikováno v: Journal of Electrochemical Science and Technology. 14:139-144

In this study, carbon-coated porous nanofibers were prepared via electrospinning and the performance of Li[Ni0.93Co0.07]O2 (NC) synthesized by electrospinning (E-NC) and co-precipitation (C-NC) was compared. E-NC had a discharge capacity of 206 mAh g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::485a9e2b9c77d436963f8aa24c68877e
https://doi.org/10.33961/jecst.2022.00409

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Improving High-Temperature Cycle Stability and Rate Performance of LiNi0.82Co0.11Mn0.07O2 Cathode Materials Using Hydrogen Peroxide Solution Washing System

Autor: Seon-Jin Lee, Hyun-Ju Jang, Jong-Tae Son

Publikováno v: Journal of New Materials for Electrochemical Systems. 25:98-102

In this study, for the removal of residual lithium (Li2CO3,LiOH) from a nickel-rich cathode material surface, LiNi0.82Co0.11Mn0.07O2 cathode materials were washed with an aqueous solution of hydrogen peroxide (H2O2).H2O2 ( pH6.04), a weak acid, can e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a97a02c0008755d548f20103ee28414d
https://doi.org/10.14447/jnmes.v25i2.a02

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Ultra-high Capacity Li[Ni1/3Co1/3Mn1/3]O2 Cathode Synthesized Using a Novel MnO2 Template

Autor: Seong-Hee Lee, Hae-In Kim, Hyun-Ju Jang, Eui-Jeong Park, Jong-Tae Son

Publikováno v: Chemistry Letters. 50:1747-1750

An ultra-high capacity Li[Ni1/3Co1/3Mn1/3]O2 (T-LNCM) cathode material was synthesized using a novel MnO2 template comprising nanorods of 114 nm diameter, which increased the surface area of the ma...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c8d4fb0c8ee57f7cb1aaf9d0251e1b1
https://doi.org/10.1246/cl.210287

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Dramatic enhancement of the electrochemical property of nano-fiber Li[Ni0.9Co0.05Al0.05]O2 as a lithium-ion battery cathode material using a polypyrrole coating

Autor: Seong-Jae Kim, Eui Jeong Park, Hae In Kim, Jong-Tae Son, Hyun Ju Jang

Publikováno v: Journal of the Korean Physical Society. 79:567-572

The Li[Ni0.9Co0.05 Al0.05]O2 (NCA) cathode material was continuously coated with polypyrrole (ppy), which is a conductive polymer, to improve its life-cycle characteristics. The thickness of the coating layer was about 4.2 nm. The electrochemical per

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25a0ef3531948a9bca7e0f2bd05431ec
https://doi.org/10.1007/s40042-021-00261-5

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Al3+ Doped Li(Ni-Ni0.9Co0.1)O2 Core-Shell Cathodes for Rapid Charging and Dramatic Cycle Performance

Autor: Eui Jeong Park, Hae In Kim, Hyun Ju Jang, Thi Bich Thuy Tran, Il Song Kim, Tae Whan Hong, Jeong-Won Kang, Yun Kyung Lee, Hag Wone Kim, Jeong Hyurk Lim, Jong-Tae Son

Publikováno v: ECS Meeting Abstracts. :333-333

Nickel-rich layered Li(Ni-Ni0.9Co0.1)O2 is a promising cathode material due to its high specific capacity. However, commercial application of this material is impeded by its rapid capacity degradation associated with structural instability. In this w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc740a1591cab27882c5205402f6294e
https://doi.org/10.1149/ma2022-023333mtgabs

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