Search Results - "Gwon, Hyeokjo"

Understanding the Degradation Mechanisms of LiNi0.5Co0.2Mn0.3O2 Cathode Material in Lithium Ion Batteries by Jung, Sung-Kyun, Gwon, Hyeokjo, Hong, Jihyun, Park, Kyu-Young, Seo, Dong-Hwa, Kim, Haegyeom, Hyun, Jangsuk, Yang, Wooyoung, Kang, Kisuk

“…LiNixCoyMnzO2 (NCM, 0 ≤ x,y,z < 1) has become one of the most important cathode materials for next‐generation lithium (Li) ion batteries due to its high…”
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Unlocking the hidden chemical space in cubic-phase garnet solid electrolyte for efficient quasi-all-solid-state lithium batteries by Jung, Sung-Kyun, Gwon, Hyeokjo, Kim, Hyungsub, Yoon, Gabin, Shin, Dongki, Hong, Jihyun, Jung, Changhoon, Kim, Ju-Sik

“…Garnet-type Li 7 La 3 Zr 2 O 12 (LLZO) solid electrolytes (SE) demonstrates appealing ionic conductivity properties for all-solid-state lithium metal battery…”
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Toward a Lithium–“Air” Battery: The Effect of CO2 on the Chemistry of a Lithium–Oxygen Cell by Lim, Hyung-Kyu, Lim, Hee-Dae, Park, Kyu-Young, Seo, Dong-Hwa, Gwon, Hyeokjo, Hong, Jihyun, Goddard, William A, Kim, Hyungjun, Kang, Kisuk

“…Lithium–oxygen chemistry offers the highest energy density for a rechargeable system as a “lithium–air battery”. Most studies of lithium–air batteries have…”
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Enhanced Power and Rechargeability of a Li−O2 Battery Based on a Hierarchical-Fibril CNT Electrode by Lim, Hee-Dae, Park, Kyu-Young, Song, Hyelynn, Jang, Eui Yun, Gwon, Hyeokjo, Kim, Jinsoo, Kim, Yong Hyup, Lima, Márcio D., Robles, Raquel Ovalle, Lepró, Xavier, Baughman, Ray H., Kang, Kisuk

“…Hierarchical carbon electrodes with highly aligned carbon nanotube (CNT) fibrils are fabricated, and it is demonstrated that these electrodes, with aligned…”
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Pliable Lithium Superionic Conductor for All-Solid-State Batteries by Jung, Sung-Kyun, Gwon, Hyeokjo, Yoon, Gabin, Miara, Lincoln J, Lacivita, Valentina, Kim, Ju-Sik

“…The key challenges in all-solid-state batteries (ASSBs) are establishing and maintaining perfect physical contact between rigid components for facile…”
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A safe and sustainable bacterial cellulose nanofiber separator for lithium rechargeable batteries by Gwon, Hyeokjo, Park, Kitae, Chung, Soon-Chun, Kim, Ryoung-Hee, Kang, Jin Kyu, Ji, Sang Min, Kim, Nag-Jong, Lee, Sunghaeng, Ku, Jun-Hwan, Do, Eun Cheol, Park, Sujin, Kim, Minsang, Shim, Woo Yong, Rhee, Hong Soon, Kim, Jae-Young, Kim, Jieun, Kim, Tae Yong, Yamaguchi, Yoshitaka, Iwamuro, Ryo, Saito, Shunsuke, Kim, Gahee, Jung, In-Sun, Park, Hyokeun, Lee, Chanhee, Lee, Seungyeon, Jeon, Woo Sung, Jang, Woo Dae, Kim, Hyun Uk, Lee, Sang Yup, Im, Dongmin, Doo, Seok-Gwang, Lee, Sang Yoon, Lee, Hyun Chul, Park, Jin Hwan

“…Bacterial cellulose nanofiber (BCNF) with high thermal stability produced by an ecofriendly process has emerged as a promising solution to realize safe and…”
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Ion-Exchange Mechanism of Layered Transition-Metal Oxides: Case Study of LiNi0.5Mn0.5O2 by Gwon, Hyeokjo, Kim, Sung-Wook, Park, Young-Uk, Hong, Jihyun, Ceder, Gerbrand, Jeon, Seokwoo, Kang, Kisuk

“…An ion-exchange process can be an effective route to synthesize new quasi-equilibrium phases with a desired crystal structure. Important layered-type battery…”
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Combined First-Principle Calculations and Experimental Study on Multi-Component Olivine Cathode for Lithium Rechargeable Batteries by Gwon, Hyeokjo, Seo, Dong-Hwa, Kim, Sung-Wook, Kim, Jongsoon, Kang, Kisuk

“…The electrochemical properties and phase stability of the multi‐component olivine compound LiMn1/3Fe1/3Co1/3PO4 are studied experimentally and with…”
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Mechanism of Co3O4/graphene catalytic activity in Li–O2 batteries using carbonate based electrolytes by Lim, Hee-Dae, Gwon, Hyeokjo, Kim, Haegyeom, Kim, Sung-Wook, Yoon, Taeho, Choi, Jang Wook, Oh, Seung M., Kang, Kisuk

“…We synthesized a hybrid graphene/Co3O4 catalyst by a simple chemical reduction method, and demonstrated that a Li–O2 cell with the hybrid catalyst delivers a…”
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Lithium-free transition metal monoxides for positive electrodes in lithium-ion batteries by Jung, Sung-Kyun, Kim, Hyunchul, Cho, Min Gee, Cho, Sung-Pyo, Lee, Byungju, Kim, Hyungsub, Park, Young-Uk, Hong, Jihyun, Park, Kyu-Young, Yoon, Gabin, Seong, Won Mo, Cho, Yongbeom, Oh, Myoung Hwan, Kim, Haegyeom, Gwon, Hyeokjo, Hwang, Insang, Hyeon, Taeghwan, Yoon, Won-Sub, Kang, Kisuk

“…Lithium-ion batteries based on intercalation compounds have dominated the advanced portable energy storage market. The positive electrode materials in these…”
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Rational design of redox mediators for advanced Li–O2 batteries by Lim, Hee-Dae, Lee, Byungju, Zheng, Yongping, Hong, Jihyun, Kim, Jinsoo, Gwon, Hyeokjo, Ko, Youngmin, Lee, Minah, Cho, Kyeongjae, Kang, Kisuk

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Energy storage in composites of a redox couple host and a lithium ion host by Kim, Sung-Wook, Nam, Kyung-Wan, Seo, Dong-Hwa, Hong, Jihyun, Kim, Hyungsub, Gwon, Hyeokjo, Kang, Kisuk

“…[Display omitted] ► Novel composite materials of a redox couple host and a lithium ion host are suggested as positive electrodes for lithium-ion batteries. ►…”
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Fabrication of FeF3 Nanoflowers on CNT Branches and Their Application to High Power Lithium Rechargeable Batteries by Kim, Sung-Wook, Seo, Dong-Hwa, Gwon, Hyeokjo, Kim, Jongsoon, Kang, Kisuk

“…Nanoarchitectures composed of FeF3 nanoflowers on carbon nanotube (CNT) branches (FNCB, see figure) are fabricated by functionalization of CNT surfaces with…”
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A Novel High‐Energy Hybrid Supercapacitor with an Anatase TiO 2 –Reduced Graphene Oxide Anode and an Activated Carbon Cathode by Kim, Haegyeom, Cho, Min‐Young, Kim, Mok‐Hwa, Park, Kyu‐Young, Gwon, Hyeokjo, Lee, Yunsung, Roh, Kwang Chul, Kang, Kisuk

“…Abstract A hybrid supercapacitor with high energy and power densities is reported. It comprises a composite anode of anatase TiO 2 and reduced graphene oxide…”
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A Novel High-Energy Hybrid Supercapacitor with an Anatase TiO2-Reduced Graphene Oxide Anode and an Activated Carbon Cathode by Kim, Haegyeom, Cho, Min-Young, Kim, Mok-Hwa, Park, Kyu-Young, Gwon, Hyeokjo, Lee, Yunsung, Roh, Kwang Chul, Kang, Kisuk

“…A hybrid supercapacitor with high energy and power densities is reported. It comprises a composite anode of anatase TiO2 and reduced graphene oxide and an…”
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Superior Rechargeability and Efficiency of Lithium-Oxygen Batteries: Hierarchical Air Electrode Architecture Combined with a Soluble Catalyst by Lim, Hee-Dae, Song, Hyelynn, Kim, Jinsoo, Gwon, Hyeokjo, Bae, Youngjoon, Park, Kyu-Young, Hong, Jihyun, Kim, Haegyeom, Kim, Taewoo, Kim, Yong Hyup, Lepró, Xavier, Ovalle-Robles, Raquel, Baughman, Ray H., Kang, Kisuk

“…The lithium–oxygen battery has the potential to deliver extremely high energy densities; however, the practical use of Li‐O2 batteries has been restricted…”
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Rational design of redox mediators for advanced Li–O2 batteries by Lim, Hee-Dae, Lee, Byungju, Zheng, Yongping, Hong, Jihyun, Kim, Jinsoo, Gwon, Hyeokjo, Ko, Youngmin, Lee, Minah, Cho, Kyeongjae, Kang, Kisuk

“…The discovery of effective catalysts is an important step towards achieving Li–O 2 batteries with long cycle life and high round-trip efficiency. Soluble-type…”
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Formulating Interfacial Impedances for Designing High-Energy and High-Power All-Solid-State Battery Cathodes by Choi, Wonsung, Ku, Jun Hwan, Kim, Youngeal, Gwon, Hyeokjo, Yoon, Gabin, Yu, Daeun, Kim, Ju-Sik

“…All-solid-state batteries (ASSBs) are safe, high-energy-storage systems. However, despite the progress achieved in the development of high-ionic-conductivity…”
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Sodium-Ion Storage in Pyroprotein-Based Carbon Nanoplates by Yun, Young Soo, Park, Kyu-Young, Lee, Byoungju, Cho, Se Youn, Park, Young-Uk, Hong, Sung Ju, Kim, Byung Hoon, Gwon, Hyeokjo, Kim, Haegyeom, Lee, Sungho, Park, Yung Woo, Jin, Hyoung-Joon, Kang, Kisuk

“…Pyroprotein‐based carbon nanoplates are fabricated from self‐assembled silk proteins as a versatile platform to examine sodium‐ion storage characteristics in…”
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SnO2/graphene composite with high lithium storage capability for lithium rechargeable batteries by Kim, Haegyeom, Kim, Sung-Wook, Park, Young-Uk, Gwon, Hyeokjo, Seo, Dong-Hwa, Kim, Yuhee, Kang, Kisuk

“…SnO 2 /graphene nanocomposites have been fabricated by a simple chemical method. In the fabrication process, the control of surface charge causes echinoid-like…”
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