Article
Chemistry, Physical
Ziwei Hong, Houcai Dong, Shaojie Han, Weihong Li, Qingyu Dong, Yingqian Cao, Xiuling Gao, Yixiao Zhang, Wei Lu, Liwei Chen
Summary: The safety performance of Ni-rich layered oxide materials used in electrical vehicle batteries can be improved by introducing nanometer-sized LMFP particles, which delay the phase transformation of NCM622 during thermal runaway and reduce heat generation between charged cathode and liquid electrolyte.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhaoyi Wang, Xiaogang Li, Nanxi Dong, Bingxue Liu, Guofeng Tian, Shengli Qi, Dezhen Wu
Summary: In this study, a high-temperature stable and wettability-enhanced polyethylene composite separator was designed by coating it with zirconia@polyimide core-shell nano-microspheres. The (ZrO2@PI)/PE separator exhibited lower density, improved thermal stability, and enhanced electrolyte wettability compared to commercial separators. It demonstrated enhanced cycle performance and thermal safety, making it a promising candidate for high-energy density and high-security lithium-ion batteries.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Hongpeng Gou, Wenbin Li, Yifan Yang, Xudong Li, Honglan Cui, Yan Liu, Jingyu Wang, Alibek Kakimov, Jingjing Wang, Wenyan Shi, Yiliang Yan, Junhua Hu, Xiaolong Han, Xifei Li
Summary: This study successfully developed a new method to coat Co/N-C onto commercial separators, which showed significant advantages in wettability, thermal stability, ionic conductivity, and cycling stability.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Fanhui Meng, Jinhui Gao, Mengdi Zhang, Dongwei Li, Xizheng Liu
Summary: This study demonstrates the robust thermal stability of Al2O3-coated non-woven separators in automotive batteries, showing promising prospects in preventing thermal runaway and enhancing safety performance.
BATTERIES & SUPERCAPS
(2021)
Article
Chemistry, Physical
Xinxin Dong, Tao Zhu, Guoqing Liu, Jinxuan Chen, Hongfei Li, Jun Sun, Xiaoyu Gu, Sheng Zhang
Summary: Coating commercial polypropylene separators with three brominated flame retardants greatly improves the flame retardancy of lithium-sulfur batteries and reduces the self-extinguishing time of the electrolyte through radical elimination mechanism. Oxygen-containing flame retardants exhibit a stronger adsorption capacity and are more advantageous in mitigating the shuttle effect and enhancing the cycle and rate performance of the batteries. This simple coating strategy offers a competitive option for large-scale production of high-safety lithium-sulfur batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Energy & Fuels
Dean Chou, Yu-Hao Cheng
Summary: This study investigates the mechanical response of a battery separator and its impact on battery performance. Simulating the displacement and pore pressure of the separator under different charge/compression rates, it is found that the stress-strain curve of the separator exhibits a wave pattern in the fully dynamic model, while this phenomenon is not observed in the quasi-static model. The maximum displacement and pore pressure increase with the compression rate, and the pore pressure fluctuates during compression in the fully dynamic model.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Kyusang Cho, Chandran Balamurugan, Hana Im, Hyeong-Jin Kim
Summary: With the increasing global demand for green energy, the battery industry is seen as an important future technology. This study compared the electrochemical properties of ceramic coated polypropylene separator and porous polyimide separator with a commercialized polypropylene separator. The ceramic coated polypropylene separator exhibited the best cycle performance at a high 5 C rate, with high ionic conductivity and less resistive solid electrolyte interphase.
KOREAN JOURNAL OF METALS AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Lien-Yang Chou, Yusheng Ye, Hiang Kwee Lee, Wenxiao Huang, Rong Xu, Xin Gao, Renjie Chen, Feng Wu, Chia-Kuang Tsung, Yi Cui
Summary: A feasible method has been developed to balance flame retardancy and electrochemical performance on commercial battery separators by coating an electrolyte-insoluble flame retardant. The composite separator showed four times better flame retardancy than conventional polyolefin separators in full pouch cells, and it can be easily fabricated on a large scale for industrial applications. High-energy-density batteries (2 Ah) assembled with the composite separator confirmed its enhanced safety through nail penetration tests.
Article
Materials Science, Multidisciplinary
Yao Li, Jin Long, Yun Liang, Jian Hu
Summary: A thermal shutdown separator with a tri-layer nonwoven structure has been developed in this study to improve the safety of lithium-ion batteries. The separator exhibits a thermal shutdown function at 135 degrees C, providing enhanced thermal stability and a wide temperature range for shutdown, thus enhancing battery safety.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Energy & Fuels
Xiutao Li, Feng Zhang, Mengjie Zhang, Zhenyang Zhou, Xiaomeng Zhou
Summary: To improve the performance and safety of polymer separators, chromium-based MOFs (Cr-MOFs) namely MIL-88B(Cr) and MIL-101(Cr) were studied as coatings. Compared with inorganic coating (Al2O3), Cr-MOFs coated separators showed improved thermal stability, flame retardance, electrolyte wettability, uptake and conductivity, and enhanced electrochemical performance. The specific surface area, pore size, and structure stability of Cr-MOFs are identified as the main factors affecting their performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jiayi Gu, Yuting Feng, Xing Wei, Chengcheng Zhang, Tianshu Peng, Lu Lu, Zhenzhen Wei, Yan Zhao
Summary: Introducing conductive MXene particles and nonconductive silica particles onto a biodegradable PBS fibrous membrane resulted in a composite separator with exceptional properties. The PBS-M-S separator exhibited flexibility, high temperature sensitivity, thermal stability, and maintained abundant electrolyte. The incorporation of MXene optimized the separator's ionic conductivity and cycling stability, making it a promising candidate for lithium ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Ryo Shomura, Ryota Tamate, Shoichi Matsuda
Summary: A facile and scalable blade coating method was used to improve the stability of the interface between Li metal and the electrolyte by covering the commercial polyethylene membrane separator with an inorganic/organic composite solid electrolyte layer containing lithium-ion-conducting ceramic fillers. This coated separator suppressed the interfacial resistance and prolonged the cycling stability of deposition/dissolution processes in Li/Li symmetric cells, as well as improved the discharge/charge cycling performance of lithium-oxygen batteries.
Article
Materials Science, Composites
Wei Tang, Qingqing Liu, Nian Luo, Feng Chen, Qiang Fu
Summary: A porous composite membrane based on ANFs and PEO was successfully prepared and applied as a separator for LIBs. The ANFs/PEO separator exhibited excellent morphology, high porosity, thermal stability, and better electrochemical performance compared to the Celgard 2400 separator.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Applied
Yuanyuan Xia, Xinping Li, Jingshun Zhuang, Wenliang Wang, Syed Comail Abbas, Chenglong Fu, Hui Zhang, Ting Chen, Yue Yuan, Xingjin Zhao, Yonghao Ni
Summary: This review thoroughly examines the current research status of cellulose-based materials for lithium-ion batteries (LIBs) components, with a specific focus on the impact of functional groups in cellulose-based separators. The study reveals that certain functional groups play a crucial role in improving the mechanical, thermal, and electrical properties of the separators. It highlights the importance of understanding the influence of functional groups in cellulose-based materials on LIBs performance.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Chen Cheng, Rendang Yang, Yang Wang, Danning Fu, Jie Sheng, Xiaohui Guo
Summary: In this study, chitosan (CS) was grafted onto cellulose surface to form chitosan-modified cellulose (OBCS) for lithium-ion battery separators. The OBCS separators demonstrated excellent pore structure and tunable pore size, and exhibited higher electrochemical performance than commercial polypropylene (PP) separators. This work provides a feasible strategy for improving the pore structure and porosity of nanocellulose separators.
CARBOHYDRATE POLYMERS
(2023)
Article
Engineering, Environmental
Gimun Gwak, Bokyung Jung, Sungsoo Han, Seungkwan Hong
Article
Nanoscience & Nanotechnology
Yong-Cheol Jeong, Bokyung Jung, Jung-Ki Park
ACS APPLIED MATERIALS & INTERFACES
(2012)
Article
Nanoscience & Nanotechnology
Do Kyung Rhee, Bokyung Jung, Young Hun Kim, Seon Ju Yeo, Se-Jin Choi, Ali Rauf, Sungsoo Han, Gi-Ra Yi, Daeyeon Lee, Pil J. Yoo
ACS APPLIED MATERIALS & INTERFACES
(2014)
Article
Chemistry, Multidisciplinary
Yong Man Lee, Bokyung Jung, Young Hun Kim, A. Reum Park, Sungsoo Han, Woo-Seok Choe, Pil J. Yoo
ADVANCED MATERIALS
(2014)
Article
Physics, Applied
Yong-Cheol Jeong, Bokyung Jung, Jihye Lee, Jung-Ki Park
APPLIED PHYSICS LETTERS
(2011)
Article
Engineering, Biomedical
MinYoung Kim, Bokyung Jung, Jung-Hwan Park
Article
Chemistry, Multidisciplinary
Yong-Cheol Jeong, Bokyung Jung, Jung-Hwan Park, Jung-Ki Park
CHEMICAL COMMUNICATIONS
(2012)
Article
Chemistry, Physical
Sung-Il Park, Eun-Ok Lee, Bo-Kyung Jung, Jong-Duk Kim
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2011)
Article
Chemistry, Physical
Hee-Man Yang, Chan Woo Park, Taebin Ahn, Bokyung Jung, Bum-Kyoung Seo, Jung-Hwan Park, Jong-Duk Kim
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2013)
Article
Chemistry, Physical
Bokyung Jung, Yong-Cheol Jeong, Jun-Hong Min, Jung-Eun Kim, Yoon-Jae Song, Jung-Ki Park, Jung-Hwan Park, Jong-Duk Kim
JOURNAL OF MATERIALS CHEMISTRY
(2012)
Article
Chemistry, Physical
Sanoop Ramachandran, Anki Reddy Katha, Subramanya Mayya Kolake, Bokyung Jung, Sungsoo Han
JOURNAL OF PHYSICAL CHEMISTRY B
(2013)
Article
Polymer Science
Bokyung Jung, Yong-Cheol Jeong, Jong-Duk Kim
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2012)
Article
Polymer Science
Mee-Ree Han, Bokyung Jung, Hye-Seon Jeon, Jung-Hwan Park
MACROMOLECULAR RESEARCH
(2011)
Article
Polymer Science
Yong-Cheol Jeong, Bokyung Jung, Jung-Ki Park
MACROMOLECULAR RESEARCH
(2012)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)