Review
Chemistry, Physical
Lanxin Xue, Yaoyao Li, Anjun Hu, Mingjie Zhou, Wei Chen, Tianyu Lei, Yichao Yan, Jianwen Huang, Chengtao Yang, Xianfu Wang, Yin Hu, Jie Xiong
Summary: This article summarizes the recent applications of in situ/operando Raman techniques for monitoring the real-time variations in Li-S batteries, aiming to reveal the reaction mechanism and guide the design of strategies for improving battery performances.
Article
Chemistry, Physical
Xun Sun, Da Tian, Xueqin Song, Bo Jiang, Chenghao Zhao, Yu Zhang, Li Yang, Lishunang Fan, Xiaoju Yin, Naiqing Zhang
Summary: FeF2 @rGO composites were used as the sulfur host materials for lithium-sulfur batteries, showing rapid lithium ion transport and high catalytic activity. The electrode exhibited high discharge capacity and low capacity decay over 500 cycles, even under elevated sulfur loading and lean electrolyte conditions.
Article
Engineering, Environmental
Yang Guo, Jianhao Lu, Zhaoqing Jin, Haorong Chen, Weikun Wang, Yaqin Huang, Anbang Wang
Summary: A new solid polymer electrolyte (SPE) was developed to improve the performance of lithium-sulfur batteries (LSBs), including their ionic conductivity and the uniformity of lithium deposition. The electrolyte was proven to have excellent ionic migration characteristics, and its use resulted in a significant increase in the energy density of the LSBs. This work provides a feasible strategy for the widespread implementation of LSBs with improved safety and a longer lifetime.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jacob M. Johnston, Nicolo Canever, Thomas Nann
Summary: Aluminum-ion batteries operate at a lower voltage than lithium batteries. To compete, these batteries need to use inexpensive, high capacity materials. This study demonstrates the possibility of using nonmetal inorganic chloride cathodes, particularly boron with its high theoretical capacity. An experimental capacity was achieved and capacity retention was improved by adsorbing charged species with other materials, although there is still room for improvement.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Chemistry, Physical
Mingyue Wang, Zhongchao Bai, Ting Yang, Chuanhao Nie, Xun Xu, Yunxiao Wang, Jian Yang, Shixue Dou, Nana Wang
Summary: Lithium-sulfur batteries have great potential for energy storage systems due to their high theoretical energy density and abundance of sulfur. However, the low actual energy density remains a challenge for their practical applications. This review highlights recent progress in increasing the sulfur loading of Li-S batteries and discusses key materials such as sulfur hosts and separators.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Can Jiao, Chun-Rong Zhao, Li Zhang, Shang-Qian Zhao, Guo-Yao Pang, Hao-Bo Sun, Shi-Gang Lu
Summary: A high sulfur content sulfur-carbon composite was synthesized via in situ generation method in aqueous solution. The majority capacity fading of the high sulfur loading Li-S cells was found to be caused by the inhomogeneous precipitation of Li2S2 and Li2S.
Article
Chemistry, Physical
Zeliang Guan, Ling Bai, Binyang Du
Summary: With the development of mobile electronic devices, there is a growing demand for high-energy storage equipment. Lithium-sulfur batteries (LSBs) have the potential to be the ideal next-generation energy storage devices due to their higher theoretical specific capacities. However, the capacity decay of LSBs has been a limiting factor. In this study, the addition of TDA+TFSI electrolyte additive was found to significantly improve the cycling performance and stability of LSBs.
Article
Chemistry, Physical
Fangwei Xie, Chunjie Xu, Yaochen Song, Qi Liang, Jinjie Ji, Sizhe Wang
Summary: Suppressing the dissolution and shuttling of lithium polysulfides (LiPSs) in electrolytes is a major concern in the development of lithium-sulfur batteries (LSBs). In this study, the researchers propose a functional liquid phase exfoliated MoS2 and MXene (IL-MoS2/MX) interlayer as the separator for LSBs. The IL-MoS2/MX interlayer with its unique alternating intercalation structure provides a pathway for ion transport and allows for uniform Li' deposition. It also achieves physical and chemical anchoring to LiPSs and lowers the energy barrier for battery reactions. The convenient preparation and excellent performance of IL-MoS2/MX suggest its potential for commercialization and provide a design strategy for functionalized interlayers for LSBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Shuting Zhang, Zhoufei Yang, Chaojie Cui, Xiao Chen, Yuntao Yu, Weizhong Qian, Yong Jin
Summary: The ultrafast frequency response supercapacitor with a special structured ionic liquid-based design exhibits excellent specific mass capacitance, ultrahigh rate, and frequency modulation performance. It shows similar or even better alternating current filtering performance compared to commercial aluminum electrolytic capacitors in various frequency ranges.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Huhu Zhou, Shuai Tan, Caihong Wang, Yong Wu
Summary: By synthesizing and incorporating a room temperature ionic liquid, TPT, containing phosphorus and sulfur elements into flexible polyurethane foam at a low dosage, enhanced flame retardancy can be achieved without compromising thermal stability and mechanical performance. The use of TPT in FPUF significantly reduces peak heat release rate and increases oxygen index value.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Chemistry, Physical
Huize Jiang, Yu Han, Hui Wang, Yuhao Zhu, Qingpeng Guo, Haolong Jiang, WeiWei Sun, Chunman Zheng, Kai Xie
Summary: All-solid-state Li-S batteries assembled with inorganic solid electrolyte have high safety and theoretical energy density, but the interfaces among components in composite cathodes have been a key factor affecting performance. In-situ chemical reactions such as thermal reduction and in-situ growth can be employed to improve interface performance by constructing conductive and ionic channels on the surface of Li2S.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Williams Agyei Appiah, He Li, John Lampkin, Juan Maria Garcia-Lastra
Summary: This study develops a mathematical model to describe the discharge performance and reversibility of Al-S batteries at different current densities. Experimental results show that the discharge mechanisms and Al2S3 precipitation routes of the cells vary with different current densities. The contact resistance is identified as the main factor limiting the discharge performance at high current densities.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
H. Cheng, J. Zhu, H. Jin, C. Gao, H. Liu, N. Cai, Y. Liu, P. Zhang, M. Wang
Summary: The study introduces a solid polymer electrolyte (SPE) with highly concentrated lithium bis(fluorosulfonyl)imide (LiFSI) developed via in situ gelation, demonstrating high ionic conductivity, high Li+ transference number, and low interface impedance. The SPE shows superior lithium dendrite suppression, enabling stable cycling of lithium-metal batteries with low overpotential. The SPE also exhibits high coulombic efficiency in Li | Cu batteries and superior cycle life, rate performance, and mechanical flexibility in Li | LiFePO4 batteries. This work shows great promise for high performance solid-state lithium-metal batteries using in situ polymerization and high concentration electrolyte.
MATERIALS TODAY ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Rongnan Guo, Yi Yang, Xiang Long Huang, Chongchong Zhao, Binbin Hu, Feng Huo, Hua Kun Liu, Bowen Sun, Zixu Sun, Shi Xue Dou
Summary: Lithium-sulfur batteries (LSBs) are considered a highly promising next-generation energy storage technology, but their practical application faces challenges such as volume change of active materials, shuttle effect of lithium polysulfides, inadequate conductivity, and safety concerns. Advanced multifunctional binders have been studied extensively to address these challenges. This article comprehensively reviews the roles of these binders in enhancing the performance of LSBs, including maintaining electrode integrity, capturing lithium polysulfides, regulating Li2S deposition, accelerating reaction kinetics, improving conductivity, promoting cathode safety, and protecting the environment. The paper also discusses the challenges and prospects for future research on innovative multifunctional binders.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Dandan Li, Zhaoyang Wei, Weiwei Lei, Jun You, Jie Liu, Yingkui Yang, Dean Shi
Summary: Building a stable and fine solid electrolyte interphase (SEI) is crucial for inhibiting dendrite formation and growth in lithium metal batteries. Aluminum hybrid polymers are considered as potential materials for artificial SEI films. In this study, an aluminum-polyethylene glycol (PEG) prepolymer is prepared and then crosslinked with a trimer of hexamethylene diisocyanate (THDI) to form artificial SEI (ASEI) films with tunable modulus.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Ki-Hun Nam, Yoon Hwa, Cheol-Min Park
ACS APPLIED MATERIALS & INTERFACES
(2020)
Review
Electrochemistry
Yoon Hwa, Elton J. Cairns
Article
Materials Science, Multidisciplinary
Yoon Hwa, Christopher S. Kumai, Thomas M. Devine, Nancy Yang, Joshua K. Yee, Ryan Hardwick, Kai Burgmann
Summary: The microstructures of 316 L stainless steel created by rapid solidification are investigated through comparison with similar microstructures formed in directed energy deposition additive manufacturing (DED-AM) and single laser surface-melted tracks. High recoil pressure from laser beam power density leads to convection in the melt pool, resulting in microstructural bands. These bands are associated with changes in chromium concentration and are a significant component of the inhomogeneous microstructure in DED-AM.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jungjin Park, Joonhee Moon, Vitalii Ri, Sangheon Lee, Chunjoong Kim, Elton J. Cairns
Summary: Nitrogen-doped graphene quantum dots as a sulfur-affinitive additive show promising potential in improving the performance of Li-S cells, achieving high cycle retention and capacity retention. Experimental results demonstrate that Li-S cells decorated with nitrogen-doped graphene quantum dots exhibit excellent performance indicators, indicating their potential application prospects.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Jungjin Park, Joonhee Moon, Kookhan Kim, Vitalii Ri, Sangheon Lee, Byung Hee Hong, Yung-Eun Sung, Chunjoong Kim, Elton J. Cairns
Summary: The surface functionalization of various carbonaceous materials through UV/O-3 plasma improves the performance of lithium/sulfur cells by oxidizing different carbon frameworks, thereby enhancing electron transport properties.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yoon Hwa, Christopher S. Kumai, Nancy Yang, Joshua K. Yee, Thomas M. Devine
Summary: The study found that the localized corrosion of laser surface melted (LSM) 316L stainless steel is characterized by lower pitting potential and a unique microstructure involving zones of primary austenite and primary ferrite solidification.
Review
Nanoscience & Nanotechnology
Dan Moldovan, Jaeyoo Choi, Youngwoo Choo, Won-Sik Kim, Yoon Hwa
Summary: Laser 3D manufacturing technologies show great potential in fabricating 3D structured electrochemical rechargeable batteries, offering excellent microstructure controllability, design flexibility, simplicity in process, and high energy and cost efficiencies for battery manufacturing.
Article
Pharmacology & Pharmacy
Kimin Kim, Jungjae Park, Yehjoo Sohn, Chan-Eui Oh, Ji-Ho Park, Jong-Min Yuk, Ju-Hun Yeon
Summary: Plant-derived extracellular vesicles (EVs) have the ability to efficiently deliver various substances to mammalian cells and play a critical role in plant defense against pathogens. They show potential for industrial applications in food, cosmetic, and pharmaceutical products. However, little is known about the stability of plant-derived EVs under different storage conditions. This study evaluated the stability of Dendropanax morbifera leaf-derived extracellular vesicles (LEVs) and their formulations with preservatives under different storage temperatures. The results provide comprehensive information on the stability of LEVs and suggest the use of preservatives to broaden the potential industrial applications of plant-derived EVs.
Article
Engineering, Multidisciplinary
In-Su Hwang, Young-Han Lee, Jeong-Myeong Yoon, Yoon Hwa, Cheol-Min Park
Summary: Sodium-ion batteries and potassium-ion batteries are potential candidates for achieving zero-carbon emission as next-generation secondary battery systems. A versatile GaSb nanocomposite anode is introduced, which shows highly reversible initial capacities and superior high-rate capabilities. The nanostructure of the GaSb nanocomposite promotes the electrochemical reaction kinetics and enhances the stability of the electrodes.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
In-Su Hwang, Young-Han Lee, Vinoth Ganesan, Yoon Hwa, Cheol-Min Park
Summary: This study introduces a new type of GaSb compound anode and optimized nanocomposite fabrication route for improving the performance of lithium-ion batteries. The reaction mechanism of GaSb with Li ions is analyzed using advanced analysis tools, and the electrochemical performance of different nanocomposites is compared. The results show that the GaSb/a-C nanocomposite exhibits superior performance, surpassing conventional graphite anodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Jungjin Park, Seong-Jun Kim, Kookhan Kim, Yunseo Jeoun, Seung-Ho Yu, Chunjoong Kim, Yung-Eun Sung, Elton J. Cairns
Summary: This study investigates the role of oxygen-functionalized mesoporous carbon in lithium-sulfur batteries and examines how sulfur distribution, oxygen coverage, and pore utilization affect the performance of the batteries.
Article
Electrochemistry
Chase McCreary, Yuhui An, Sun Ung Kim, Yoon Hwa
Summary: This review discusses the background and challenges of lithium/sulfur batteries, as well as methods to achieve high specific energy through design requirements calculated with different parameters. The prospects for rational modeling and manufacturing strategies are also discussed for future development of lithium/sulfur batteries.
Article
Chemistry, Physical
Young-Han Lee, Yoon Hwa, Cheol-Min Park
Summary: The study introduces a novel high-capacity and high-power Ga2Te3 anode material for LIBs and compares the electrochemical performance of two types of Ga2Te3/C composites prepared via different synthetic routes, with results showing that BM-Ga2Te3/C exhibits better performance. The unique three-step nano-confinement process in BM-Ga2Te3/C leads to high electrochemical performances, including smaller Ga2Te3 nanocrystallites, stable capacity retention, and excellent high-rate performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Yoon Hwa, Hyo Won Kim, Hao Shen, Dilworth Y. Parkinson, Bryan D. McCloskey, Elton J. Cairns
MATERIALS HORIZONS
(2020)
