Journal Articles 

(† equal contribution, * corresponding author, bold EMSDL members, EMDSL main or sub)
You can also see publication list at Google Scholar.

Publication list @ UNIST (2023.7.~Present)

[62] "Reactive Oxygen Species Resistive Redox Mediator in Lithium-Oxygen Batteries"
Hyun-Wook Lee†, Jiwon Hwang†, Ja-Yeong Kim†, Myungsoo Choi, Haeun Choi, Hong-Bin Youn, Seoung-Tae Kim, Jee Ho Ha, Seok Ju Kang, Shuming Chen,* Sung-Eun Suh,* Won-Jin Kwak*. (Preprint)
Adv. Mater., 37, 2415805 (2025)
News release @ UNIST https://news.unist.ac.kr/kor/20250212/

[61] "Control of electrolyte desolvation energy suppressing co-intercalation mechanism and organic electrode dissolution"
Ji-Hee Lee†, Youngoh Kim†, Hyun-Wook Lee†, Joo-Hyun Lee, Sechan Lee, Joonmyung Choi*, Won-Jin Kwak*.
ACS Nano, 19, 1371–1382 (2025)
News release @ UNIST https://news.unist.ac.kr/kor/20250224/

[60] "Mitigating PTFE decomposition in ultra thick dry-processed anodes for high energy density lithium-ion batteries"
Seungmin Han†, Eui-Hyurk Noh†, Sujong Chae†, Kihwan Kown, Juhyun Lee, Ji-Su Woo, Seongsu Park, Taeseup Song*, Won-Jin Kwak*, Junghyun Choi*.
J. Energy Storage, 96, 112693 (2024)

[59] "Expeditious Full Discharging Method without Voltage Rebound Issue for Safe Battery Recycling"
Ji-Su Woo, Hong-Geun Lee, Geun-Ha Hwang, Keun-Ho Heo, Yu-Chan Hwang, Won-Jin Kwak*.
J. Electrochem. Sci. Technol., 15, 459-465 (2024)

[58] "Suppression of Potasside Reaction in Localized High Concentration Electrolytes Utilizing Fluorine-Substituted Benzene as Bifunctional Additive for Potassium-Metal Batteries"
Hyun-Wook Lee†, Ji-Hee Lee†, Hyokyeong Kang†, Ja-Yeong Kim, Ji-Su Woo, Kansara S. Dineshbhai, Jang-Yeon Hwang*, Won-Jin Kwak*.
Energy Storage Mater., 70, 103448 (2024)

[57] "Pre-impregnated protective layer for high energy density Li metal batteries using aqueous electrolyte"
Eui-Hyurk Noh†, Youngoh Kim†, Sang-Jin Jeon†, Ye-Jin An, Yun Jung Lee, Yun-Chae Jung*, Joonmyung Choi*, Won-Jin Kwak*.
Chem. Eng. J., 490, 151269 (2024)

[56] "Diluents Effect on Inhibiting Dissolution of Organic Electrode for Highly Reversible Li-ion Batteries"
Hyun-Wook Lee†, Youngoh Kim†, Joo-Eun Kim, Ja-Yeong Kim, Jae-Yeon Jang, Joonmyung Choi*, Won-Jin Kwak*.
Adv. Energy Mater., 14, 2303033 (2024)
News release @ UNIST https://news.unist.ac.kr/kor/20240201/

[55] "On-site formation of silver decorated carbon as anodeless electrode for high-energy density all-solid-state batteries"
Yun-Chae Jung, Chihyun Hwang, Myung-Jun Kwak, Sang-Jin Jeon, Yun Jung Lee, Won-Jin Kwak, Hyun-Seung Kim, KyungSu Kim, Woosuk Cho* Ji-Sang Yu*.
J. Mater. Chem. A, 11, 25275-25282 (2023)

[54] "Effect of Singlet Oxygen on Redox Mediators in Lithium-Oxygen Batteries"
Hyun-Wook Lee, Ja-Yeong Kim, Joo-Eun Kim, Yun-Joo Jo, Daniel Dewar, Sixie Yang, Xiangwen Gao*, Peter G. Bruce*, Won-Jin Kwak*.
J. Mater. Chem. A, 11, 16003-16008 (2023)

2020.3.~2023.6. (@ Ajou Univ.)

[53] "Fluoroalkyl Iodide Additive for Li–O2 Battery Electrolytes Enables Stable Cycle Life and High Reversibility"
Min-Gi Jeong, Hyun Ho Lee, Hyeon-Ji Shin, Yeseul Jeong, Jang-Yeon Hwang, Won-Jin Kwak, Gwangseok Oh, Wonkeun Kim, Kyounghan Ryu, Seungho Yu, Hee-Dae Lim, Minah Lee, Hun-Gi Jung*.
J. Mater. Chem. A, 11, 15246-15255 (2023)

[52] "Three-Dimensionally Semi-Ordered Macroporous Air Electrodes for Metal-Oxygen Batteries"
Hyung-Seok Lim, Won-Jin Kwak, Dan Thien Nguyen, Wei Wang, Wu Xu*, Ji-Guang Zhang*.
J. Mater. Chem. A, 11, 5746-5753 (2023)

[51] "Acceleration of Singlet Oxygen Evolution by Superoxide Dismutase Mimetics in Lithium–Oxygen Batteries."
Joo-Eun Kim, Hyun-Wook Lee, Won-Jin Kwak*.
Adv. Funct. Mater., 32, 2209012 (2022)

[50] "Liquid metal arene complex for next-generation batteries."
Ji-Su Woo, Hyun-Wook Lee, Ji-Hee Lee, Seung-Hun Han, Won-Jin Kwak*.
Mater. Today Energy., 30, 101156 (2022)

[49] "Uniformly Distributed Reaction by 3D Host-Lithium Composite Anode for High Rate Capability and Reversibility of Li-O2 Batteries."
Min-Gi Jeong†, Won-Jin Kwak†, Ji Young Kim, Joong Kee Lee, Yang-Kook Sun*, Hun-Gi Jung*.
Chem. Eng. J., 427, 130914 (2022)

[48] "Stable Solid Electrolyte Interphase Layer Formed by Electrochemical Pretreatment of Gel Polymer Coating on Li Metal Anode for Lithium–Oxygen Batteries."
Hyung-Seok Lim†, Won-Jin Kwak†, Sujong Chae, Sungun Wi, Linze Li, Jinagtao Hu,  Jinhui Tao, Chongmin Wang, Wu Xu*, Ji-Guang Zhang*.
ACS Energy Lett., 6, 3321–3331 (2021)

[47] "Ambilaterality of RM towards 1O2 in Li-O2 batteries: trap and quencher."
Hyun-Wook Lee†, Hun Kim†, Hun-Gi Jung, Yang-Kook Sun*, Won-Jin Kwak*.
Adv. Funct. Mater., 31, 2102442 (2021)

[46] "Rational Design of Electrolytes for Long-Term Cycling of Si Anodes in Wide Temperature Range."
Sujong Chae, Won-Jin Kwak, Kee Sung Han, Shuang Li, Mark H. Engelhard, Jiangtao Hu, Chongmin Wang, Xiaolin Li*, Ji-Guang Zhang*.
ACS Energy Lett., 6, 387-394 (2021) 

[45] "Potassium-Oxygen Batteries: Significance, Challenges, and Prospects."
Jimin Park, Jang-Yeon Hwang*, Won-Jin Kwak*.
J. Phys. Chem. Lett., 11, 7849-7856 (2020)

[44] "Sustainable Encapsulation Strategy of Silicon Nanoparticles in Microcarbon Sphere for High-Performance Lithium-Ion Battery Anode."
Hyeon-Ji Shin†, Jang-Yeon Hwang†, Hyun Jung Kwon, Won-Jin Kwak, Hun-Gi Jung*.
ACS Sustainable Chem. Eng., 8, 14150-14158 (2020)

[43] "Lithium Dendrite Suppression with Silica Nanoparticle-Dispersed Colloidal Electrolyte."
Jinhong Lee, Hyung-Seok Lim, Xia Cao, Won-Jin Kwak, Xiaodi Ren, Ji-Guang Zhang, Hongkyung Lee*, Hee-Tak Kim*.
ACS Appl. Mater. Interfaces, 12, 37188-37196 (2020) 

[42] "Effects of Fluorinated Diluents in Localized High-Concentration Electrolytes for Lithium-Oxygen Batteries."
Won-Jin Kwak, Hyung-Seok Lim, Peiyuan Gao, Ruozhu Feng, Sujong Chae, Lirong Zhong, Jeffrey Read, Mark H. Engelhard, Wu Xu*, Ji-Guang Zhang*.
Adv. Funct. Mater., 30, 2002927 (2020) 

[41] "Optimized Electrolyte with High Electrochemical Stability and Oxygen Solubility for Lithium-Oxygen and Lithium-Air Batteries."
Won-Jin Kwak, Sujong Chae, Ruozhu Feng, Peiyuan Gao, Jeffrey Read, Mark H. Engelhard, Lirong Zhong, Wu Xu*, Ji-Guang Zhang*.
ACS Energy Lett., 5, 2182-2190 (2020) 

[40] "Oxidation Stability of Organic Redox Mediators as Mobile Catalysts in Lithium−Oxygen Batteries."
Won-Jin Kwak†, Jiwon Park†, Hun Kim†, Jung Min Joo, Doron Aurbach*, Hye Ryung Byon*, Yang-Kook Sun*.
ACS Energy Lett., 5, 2122-2129 (2020) 

[39] "Perpendicularly aligned TiC-coated carbon cloth cathode for high-performance Li-O2 batteries."
Min-Gi Jeong†, Won-Jin Kwak†, Hyeon-Ji Shin, Yang-Kook Sun*, Hun-Gi Jung*.
Chem. Eng. J., 399, 125699 (2020) 

[38] "Initial investigation and evaluation of potassium metal as an anode for rechargeable potassium batteries."
Jimin Park†, Jun Lee†, Muhammad Hilmy Alfaruqi, Won-Jin Kwak, Jaekook Kim*, Jang-Yeon Hwang*.
J. Mater. Chem. A, 8, 16718-16737 (2020) 

[37] "Lithium-Oxygen Batteries and Related Systems: Potential, Status and Future."
Won-Jin Kwak†, Rosy†, Daniel Sharon, Chun Xia, Hun Kim, Lee R. Johnson, Peter G. Bruce*, Linda F. Nazar*, Yang-Kook Sun*, Aryeh A. Frimer, Malachi Noked, Stefan A. Freunberger, Doron Aurbach*.
Chem. Rev., 120, 6626-6683 (2020) 

~2020.2. (Before UNIST & Ajou Univ.)

[36] "Limited effects of redox mediator in lithium-oxygen batteries: Indecomposable by-products."
Hun Kim, Won-Jin Kwak, Hun-Gi Jung, Yang-Kook Sun*.
J. Mater. Chem. A, 8, 5622-5628 (2020) 

[35]  "Controllable and stable organometallic redox mediators for lithium oxygen batteries."
Won-Jin Kwak, Atif Mahammed, Hun Kim, Trung Thien Nguyen, Zeev Gross*, Doron Aurbach*, Yang-Kook Sun*.
Mater. Horiz., 7, 214-222 (2020) 

[34] "Mutual Conservation of Redox Mediator and Singlet Oxygen Quencher in Lithium-Oxygen Batteries."
Won-Jin Kwak, Stefan A. Freunberger, Hun Kim, Jiwon Park, Trung Thien Nguyen, Hun-Gi Jung, Hye Ryung Byon, Yang-Kook Sun*.
ACS Catal., 9, 9914-9922 (2019)

[33] "Deactivation of redox mediators in lithium-oxygen batteries by singlet oxygen."
Won-Jin Kwak, Hun Kim, Trung Thien Nguyen, Yann K. Petit, Nika Mahne, Christian Leypold, Paul Redfern, Larry A. Curtiss, Hun-Gi Jung, Sergey M. Borisov, Stefan A. Freunberger*, Yang-Kook Sun*.
Nat. Commun., 10, 1380 (2019)

[32] "Verification for trihalide ions as redox mediators in Li-O2 batteries."
Hun Kim, Won-Jin Kwak, Hun-Gi Jung, Yang-Kook Sun*.
Energy Stor. Mater., 19, 148-153 (2019)

[31] "Triple Hierarchical Porous Carbon Spheres as Effective Cathodes for Li–O2 Batteries."
Min-Gi Jeong†, Won-Jin Kwak†, Mobinul Islam, Jiwon Park, Hye Ryung Byon, Minchul Jang, Yang-Kook Sun*, Hun-Gi Jung*.
J. Electrochem. Soc., 166, A455-A463 (2019)

[30] "Dendrite- and Oxygen-Proof Protective Layer for Lithium Metal in Lithium-Oxygen Batteries."
Won-Jin Kwak, Jiwon Park, Trung Thien Nguyen, Hun Kim, Hye Ryung Byon, Minchul Jang, Yang-Kook Sun*.
J. Mater. Chem. A, 7, 3857-3862 (2019)

[29] "ICAC 2018: The First International Conference Focused on NCM & NCA Cathode Materials for Lithium Ion Batteries."
Won-Jin Kwak, Nam-Yung Park, Yang-Kook Sun*.
ACS Energy Lett., 3, 2757-2760 (2018) 

[28] "A Comparative Evaluation of Redox Mediators for Li-O2 Batteries: A Critical Review."
Won-Jin Kwak, Hun Kim, Hun-Gi Jung, Doron Aurbach*, Yang-Kook Sun*.
J. Electrochem. Soc., 165, A2274-A2293 (2018)

[27] "Shedding Light on the Oxygen Reduction Reaction Mechanism in Ether-Based Electrolyte Solutions: A Study Using Operando UV−Vis Spectroscopy."
Daniel Hirshberg, Daniel Sharon, Michal Afri, Ronit Lavi, Aryeh A. Frimer, Noa Metoki, Noam Eliaz, Won-Jin Kwak, Yang-Kook Sun, Doron Aurbach*.
ACS Appl. Mater. Interfaces, 10, 10860-10869 (2018)

[26] "Optimized Concentration of Redox Mediator and Surface Protection of Li Metal for Maintenance of High Energy Efficiency in Li-O2 Batteries."
Won-Jin Kwak†, Seong-Jin Park†, Hun-Gi Jung, Yang-Kook Sun*.
Adv. Energy Mater., 8, 1702258 (2018)

[25] "Revealing the Reaction Mechanism of Na-O2 Batteries using Environmental Transmission Electron Microscopy."
Won-Jin Kwak†, Langli Luo†, Hun-Gi Jung, Chongmin Wang*, Yang-Kook Sun*.
ACS Energy Lett., 3, 393-399 (2018)

[24] "Clarification of Solvent Effects on Discharge Products in Li-O2 Batteries through a Titration Method."
Young Joo Lee†, Won-Jin Kwak†, Yang-Kook Sun*, Yun Jung Lee*.
ACS Appl. Mater. Interfaces, 10, 526-533 (2018)

[23] "Controversial Topics on Lithium Superoxide in Li-O2 Batteries."
Won-Jin Kwak, Jin-Bum Park, Hun-Gi Jung, Yang-Kook Sun*.
ACS Energy Lett., 2, 2756-2760 (2017)

[22] "Synergistic Integration of Soluble Catalysts with Carbon-Free Electrodes for Li-O2 Batteries."
Won-Jin Kwak†, Sung Hoon Ha†, Do Hyung Kim, Kyu Hang Shin, Yang-Kook Sun*, Yun Jung Lee*.
ACS Catal., 7, 8192-8199 (2017)

[21] "Sodium oxygen batteries: one step further with catalysis by ruthenium nanoparticles."
Jin-Hyuk Kang†, Won-Jin Kwak†, Doron Aurbach, Yang-Kook Sun*.
J. Mater. Chem. A, 5, 20678-20686 (2017)

[20] "2,4-Dimethoxy-2,4-dimethylpentan-3-one: An Aprotic Solvent Designed for Stability in Li–O2 Cells."
Daniel Sharon, Pessia Sharon, Daniel Hirshberg, Michael Salama, Michal Afri, Linda J. W. Shimon, Won-Jin Kwak, Yang-Kook Sun, Aryeh A. Frimer, Doron Aurbach*.
J. Am. Chem. Soc., 139, 11690-11693 (2017)

[19] "Optimized Bicompartment Two Solution Cells for Effective and Stable Operation of Li-O2 Batteries."
Won-Jin Kwak, Hun-Gi Jung, Doron Aurbach*, Yang-Kook Sun*.
Adv. Energy Mater., 7, 1701232 (2017)

[18] "A new perspective of the ruthenium ion: a bifunctional soluble catalyst for high efficiency Li-O2 batteries."
Seon Hwa Lee, Won-Jin Kwak, Yang-Kook Sun*.
J. Mater. Chem. A, 5, 15512-15516 (2017)

[17] "Large-Scale Li-O2 Pouch Type Cells for Practical Evaluation and Applications."
Hyeon-Ji Shin, Won-Jin Kwak, Doron Aurbach, Yang-Kook Sun*.
Adv. Funct. Mater., 27, 1605500 (2017)

[16] "Feasibility of Full (Li-Ion)-O2 Cells Comprised of Hard Carbon Anodes."
Daniel Hirshberg, Daniel Sharon, Ezequiel De La Llave, Michal Afri, Aryeh A. Frimer, Won-Jin Kwak, Yang-Kook Sun, Doron Aurbach*.
ACS Appl. Mater. Interfaces, 9, 4352-4361 (2017)

[15] "Understanding problems of lithiated anode in lithium oxygen full cells."
Won-Jin Kwak, Hyeon-Ji Shin, Jakub Reiter, Nikolaos Tsiouvaras, Jusef Hassoun, Stefano Passerini, Bruno Scrosati, Yang-Kook Sun*.
J. Mater. Chem. A, 4, 10467-10471 (2016)

[14] "Li–O2 cells with LiBr as an electrolyte and a redox mediator."
Won-Jin Kwak, Daniel Hirshberg, Daniel Sharon, Michal Afri, Aryeh A. Frimer, Hun-Gi Jung, Doron Aurbach, Yang-Kook Sun.
Energy Environ. Sci., 9, 2334-2345 (2016)

[13] "Mechanistic Role of Li+ Dissociation Level in Aprotic Li-O2 Battery."
Daniel Sharon, Daniel Hirsberg, Michael Salama, Michal Afri, Aryeh A. Frimer, Malachi Noked, Won-Jin Kwak, Yang-Kook Sun, Doron Aurbach*.
ACS Appl. Mater. Interfaces, 8, 5300-5307 (2016)

[12] "Iron–cobalt bimetal decorated carbon nanotubes as cost-effective cathode catalysts for Li-O2 batteries."
Won-Jin Kwak†, Tae-Geun Kang†, Yang-Kook Sun*, Yun Jung Lee*.
J. Mater. Chem. A, 4, 7020-7026 (2016)

[11] "Silver nanowires as catalytic cathodes for stabilizing lithium-oxygen batteries."
Won-Jin Kwak†, Hun-Gi Jung†, Seon-Hwa Lee, Jin-Bum Park, Doron Aurbach*, Yang-Kook Sun*.
J. Power Sources, 311, 49-56 (2016)

[10] "Green Strategy to Single Crystalline Anatase TiO2 Nanosheets with Dominant (001) Facets and Its Lithiation Study toward Sustainable Cobalt-Free Lithium Ion Full Battery."
Hai Ming, Pushpendra Kumar, Wenjing Yang, Yu Fu, Jun Ming*, Won-Jin Kwak, Lain-Jong Li, Yang-kook Sun*, Junwei Zheng*.
ACS Sustainable Chem. Eng., 3, 3086-3095 (2015)

[9] "Understanding the behavior of Li–oxygen cells containing LiI."
Won-Jin Kwak, Daniel Hirshberg, Daniel Sharon, Hyeon-Ji Shin, Michal Afri, Jin-Bum Park, Arnd Garsuch, Frederick Francois Chesneau, Aryeh A. Frimer, Doron Aurbach*, Yang-Kook Sun*.
J. Mater. Chem. A, 3, 8855-8864 (2015)

[8] "A Mo2C/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries with High Energy Efficiency and Long Cycle Life."
Won-Jin Kwak, Kah Chun Lau, Chang-Dae Shin, Khalil Amine, Larry A Curtiss*, Yang-Kook Sun*.
ACS Nano, 9, 4129-4137 (2015)

[7] "Fluorine-doped porous carbon-decorated Fe3O4-FeF2 composite versus LiNi0.5Mn1.5O4 towards a full battery with robust capability."
Hai Ming, Jun Ming, Won-Jin Kwak, Wenjing Yang, Qun Zhou, Junwei Zheng, Yang-Kook Sun*.
Electrochim. Acta, 169, 291-299 (2015)

[6] "A sustainable iron-based sodium ion battery of porous carbon–Fe3O4/Na2FeP2O7 with high performance."
Jun Ming*, Hai Ming, Wenjing Yang, Won-Jin Kwak, Jin-Bum Park, Junwei Zheng, Yang-Kook Sun*.
RSC Adv., 5, 8793-8800 (2015)

[5] "Nanoconfinement of low-conductivity products in rechargeable sodium–air batteries."
Won-Jin Kwak, Zonghai Chen, Chong Seung Yoon, Joong-Kee Lee, Khalil Amine, Yang-Kook Sun*.
Nano Energy, 12, 123-130 (2015)

[4] "Lithiation of an Iron Oxide-Based Anode for Stable, High-Capacity Lithium-Ion Batteries of Porous Carbon–Fe3O4/Li[Ni0.59Co0.16Mn0.25]O2."
Jun Ming, Won-Jin Kwak, Sung-Jun Youn, Hai Ming, Jusef Hassoun*, Yang-Kook Sun*.
Energy Technol., 2, 778-785 (2014)

[3] "An Advanced Lithium−Air Battery Exploiting an Ionic Liquid-Based Electrolyte."
Giuseppe Antonio Elia, Jusef Hassoun*, Won-Jin Kwak, Yang-Kook Sun*, Bruno Scrosati*, Franziska Mueller, Dominic Bresser, Stefano, Passerini*, Philipp Oberhumer, Nikolaos Tsiouvaras, Jakub Reiter.
Nano Lett., 14, 6572−6577 (2014)

[2] "The binder effect on an oxide-based anode in lithium and sodium-ion battery applications: the fastest way to ultrahigh performance."
Jun Ming, Hai Ming, Won-Jin Kwak, Chang-dae Shin, Junwei Zheng, Yang-Kook Sun*.
Chem. Commun., 50, 13307-13310 (2014)

[1] "A Physical Pulverization Strategy for Preparing a Highly Active Composite of CoOx and Crushed Graphite for Lithium–Oxygen Batteries."
Jun Ming†, Won-Jin Kwak†, Jin-Bum Park, Chang-Dae Shin, Jun Lu, Larry Curtiss, Khalil Amine, Yang-Kook Sun*.
ChemPhysChem, 15, 2070-2076 (2014)