Article
Chemistry, Physical
Jiayi Li, Yizhuo Zhang, Rong Shang, Chen Cheng, Yan Cheng, Jianxin Xing, Zhenzhen Wei, Yan Zhao
Summary: Advancements in separator technology for lithium-ion batteries have been developed to ensure safety, service life, and user experience. The focus is on incorporating thermal shutdown functions to prevent safety issues caused by elevated temperatures. Growing demand for recycling and sustainability has led to the development of functional separators with irreversible or reversible thermal shutdown ability for future utility and manufacture.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Kuo Yang, Zehai Zhang, Ke Xu, Ye Li, Fangfei Li, Bing Xue, Xiaopeng Gu
Summary: A porous Li4SiO4 ceramic separator is prepared using diatomite and lithium carbonate as raw materials. The separator exhibits an abundant and uniform three-dimensional pore structure, excellent electrolyte wettability, and thermal stability. With a maximum ionic conductivity of 1.18 mS cm(-1), the Li4SiO4 ceramic separator shows promising application prospects in high-power lithium-ion batteries.
Article
Nanoscience & Nanotechnology
Ji Hwan Kim, Juncheol Hwang, Young-Hoon Lee, Seok Hyun Song, Jaewoon Lee, Si-Hwan Lee, Won-Jin Moon, Hyungsub Kim, Duho Kim, Seung-Ho Yu, Yung-Eun Sung
Summary: The use of elemental doping improves the performance of lithium cobalt oxide cathode material, but there is still a lack of fundamental understanding regarding the rationality of each doping element. This study demonstrates that titanium doping can enhance the thermodynamic stability and kinetics of lithium ions during the cycling process, improving the rate performance.
ACS APPLIED MATERIALS & INTERFACES
(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
Chemistry, Multidisciplinary
Haoyuan Li, Yanlin Huang, Yue Zhang, Xiangyu Zhang, Lianqi Zhao, Wenda Bao, Xincan Cai, Kexin Zhang, Haojie Zhao, Beili Yi, Longxing Su, Anthony K. Cheetham, Shan Jiang, Jin Xie
Summary: A functional layer based on porous organic cages (POCs) is reported, which allows fast and selective ion transport and can sieve specific ions while suppressing undesired reactions, improving the performance of energy storage and conversion devices.
Article
Chemistry, Physical
Jia Li, Qingtong Wang, Zhuyi Wang, Yutong Cao, Junqiang Zhu, Yanyan Lou, Yin Zhao, Liyi Shi, Shuai Yuan
Summary: The porous hybrid layer coated separator prepared by a template-free method exhibits high thermal stability, good electrochemical performance, and improved wettability, enhancing the thermal stability, wettability, and electrolyte uptake of the separators, as well as increasing the lithium ion transference number. As a result, the battery assembled with the composite separator shows enhanced electrochemical performance in terms of cycle stability and rate performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Nan Wang, Wenyong Liu, Haiyang Liao, Zhihan Li, Yi Chen, Guangsheng Zeng
Summary: Pure cellulose nanofiber (CNF) separators for high-performance lithium-ion batteries (LIBs) were prepared using CNF as the matrix and tert-butyl alcohol (TBA) as the dispersion medium by a facile filtration method. The freeze-dried separator at -80 degrees C with TBA as the dispersion medium (TBA-FD) exhibited the best performance, with high porosity, electrolyte uptake, and ionic conductivity. The CNF separators showed good thermal stability and demonstrated superior cycling stability and rate performance in LIBs.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
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
Engineering, Chemical
Peilong Zhou, Dongxu Yao, Kaihui Zuo, Yongfeng Xia, Jinwei Yin, Hanqin Liang, Yu-Ping Zeng
Summary: A novel separator composed of PVDF-HFP and Si3N4 whiskers was reported, showing improved structural stability at high temperatures and enhanced electrochemical stability compared to traditional nano powder fillers. The composite separator with 60 wt% silicon nitride whiskers exhibited enhanced ionic conductivity, stable coulombic efficiency, high capacity retention rate, and high specific capacity.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Electrochemistry
Kingo Ariyoshi, Jun Sugawa
Summary: In this study, we aimed to increase the power density of lithium-ion batteries by improving the rate capability of lithium insertion electrodes. Through synthesizing Ti-LNMO, it was found to have better rate capability than LNMO, demonstrating that high-power capabilities can be achieved by controlling the reaction mechanism. Furthermore, the solid-state Li-ion diffusion coefficient of Ti-LNMO was determined to be more than three times greater than that of LNMO, revealing the importance of lithium insertion mechanism for the kinetics of lithium insertion reaction.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Chemical
Jingren Gou, Wangyu Liu, Aimin Tang
Summary: A novel method has been proposed to fabricate a nanocellulose based separator with high porosity and multiscale pore structure, improving the electrochemical performances of lithium ion batteries. Although the mechanical strength of the separator is weakened, the battery test proves that the capacity retention and rate capability meet the requirements.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Minsung Kim, Soo Yeong Hong, Joona Bang, Sang-Soo Lee
Summary: The PPS/SiO2 composite membrane with high porosity and homogeneous distribution of SiO2 nanoparticles was prepared for sustainable electrochemical behaviors in lithium-ion batteries. Plasma-assisted interface modulation improved wetting to electrolyte, leading to superior performance compared to traditional separators.
MATERIALS TODAY ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Wenxiu Hou, Chao Yan, Panrun Shao, Kun Dai, Jun Yang
Summary: This study investigates the application of Prussian blue analogues (PBAs) as electrode materials for aqueous ammonium ion batteries (AAIBs). A PANI/Na0.73Ni[Fe(CN)(6)](0.88) hybrid (PNFF) is synthesized using a covalent bond assisted engineering with in situ polyaniline (PANI) polymerization, combining the high conductivity of PANI and the stability of PBAs. It is found that the PANI content affects the electrochemical performance of PNFF, and an optimized PANI content results in enhanced reversible capacity and cycling stability. The ammonium storage mechanism of PNFF is investigated using in situ Raman and ex situ XPS/FTIR analysis, and a durable aqueous NH4+ full cell is assembled using a polyimide@MXene anode.
Article
Chemistry, Physical
Chuming Wang, Mang Niu, Ting Wang, Peitao Xie, Zehua Chen, Chunzhao Liu, Yuan Liu
Summary: Researchers prepared porous carbon nanosheets with abundant Sn delta+ sites (Sn-PCNS) through controllable template-directed method and carbonization process. The atomically dispersed Sn delta+ is stabilized mainly by O/N moieties in the carbon framework, which enhances the electron transfer and Li+-/Na+-diffusion kinetics, benefiting the Li+-/Na+-storage capabilities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Polymer Science
Lei Li, Yutian Duan
Summary: Due to the growing demand for eco-friendly products, lithium-ion batteries have gained widespread attention as an energy storage solution. This review provides comprehensive content on battery separator membranes, addressing their performance requirements, manufacturing protocols, and scientific progress. The robust membranes developed have shown superior efficacy across diverse applications.
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)