Article
Energy & Fuels
Amelie Krupp, Robert Beckmann, Theys Diekmann, Ernst Ferg, Frank Schuldt, Carsten Agert
Summary: To optimize costs and ensure safety, investigation and modeling of battery aging is crucial. This paper quantifies the influence of characterization measurements on calendar aging for the first time, finding that such measurements can lead to an increase in capacity and a decrease in resistance. In future studies, capacity measurements should be conducted with small currents and correction methods can be used to mitigate the characterization effect.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Hector Beltran, Pablo Ayuso, Nuria Vicente, Braulio Beltran-Pitarch, Jorge Garcia-Canadas, Emilio Perez
Summary: This study investigates the aging-induced degradation of commercial Li-ion pouch cells with lithium nickel-manganese-cobalt-oxide-based cathodes and graphite anodes under various operating conditions. The research develops a detailed equivalent electrical circuit model and validates it using in situ electrochemical impedance spectroscopy. The study confirms the dependence of the cells' capacity fade on factors such as temperature and state-of-charge, and highlights the unusual finding that cells held at 95% state-of-charge exhibit lower degradation than those at 70%. The research introduces a high performing calendar aging model that can be useful for battery management systems.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Marco-Tulio F. Rodrigues, Zhenzhen Yang, Stephen E. Trask, Alison R. Dunlop, Minkyu Kim, Fulya Dogan, Baris Key, Ira Bloom, Daniel P. Abraham, Andrew N. Jansen
Summary: This study analyzed the aging effects of 450 mAh pouch cells containing 15 wt% Si after four years of storage at 21 degrees C. The results showed that severe losses of Si capacity occurred when cells were stored at high states of charge, but not when cells were fully discharged prior to storage. In addition, impedance rise was significantly higher when cells were kept at high states of charge, mainly due to phenomena taking place at the cathode.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Wenkuan Zhu, Ping Zhou, Dongsheng Ren, Min Yang, Xinyu Rui, Changyong Jin, Tengteng Shen, Xuebing Han, Yuejiu Zheng, Languang Lu, Minggao Ouyang
Summary: This study establishes a mechanistic calendar aging model of lithium-ion battery considering solid electrolyte interface growth. The model can simulate the battery capacity degradation and the evolution of battery charging voltage profiles, and capture the internal degradation of the electrodes during the aging process. Modeling analysis is conducted to find possible solutions to mitigate the calendar aging process of lithium-ion battery.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Yu Zhang, Wen-Peng Wang, Yao Zhao, Xing Zhang, Hua Guo, Hongcai Gao, Di-Xin Xu, Yu-Ming Zhao, Ge Li, Jia-Yan Liang, Sen Xin, Yu-Guo Guo
Summary: This study investigates the mechanism of calendar aging in SiOx-G electrodes for high-energy Li-ion batteries under high-temperature storage conditions. The research reveals that, in addition to parasitic reactions at interfaces, lithium migration from lithiated graphite to nearby SiOx particles is also responsible for the aging of the materials, and high-temperature storage notably accelerates this process.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Rung-Chuan Lee, Joseph Franklin, Chixia Tian, Dennis Nordlund, Marca Doeff, Robert Kostecki
Summary: The study demonstrates that a simple surface treatment can suppress film formation on NMC electrodes and reduce impedance rise; detailed modeling shows that surface treatment helps reduce cell impedance.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Sebastian Klick, Gereon Stahl, Dirk Uwe Sauer
Summary: This paper investigates the influence of electrolyte volume on the degradation of lithium-ion batteries and finds that cells with higher amounts of electrolyte degrade substantially slower. Based on electrical tests, a theory explaining the volume-dependent rise of resistance and capacity decay is proposed.
Article
Chemistry, Analytical
D. Maurya Gyanprakash, Chandresh Kumar Rastogi
Summary: Silicon is a promising anode material for Li-ion batteries with high specific capacity, but its stability limits its industrial-scale application. Particle size reduction below 150 nm enhances reactivity and cycle life, but falls short of industrial benchmarks. In this study, impedance analysis was used to investigate physicochemical processes at the Si electrode/electrolyte interface. Different Si anode samples were prepared: 50 nm, 150 nm, and a mixture of 50 and 150 nm particles. The small particle size sample exhibited high activity but suffered from high SEI formation, while the 150 nm sample had low SEI formation but high charge transfer resistance. The mixed sample showed a compromise, with the lowest polarization resistance after 50 cycles and intermediate SEI formation, resulting in the highest capacity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Xuansen Fang, Yaolong He, Xiaomin Fan, Dan Zhang, Hongjiu Hu
Summary: This study investigates the influence mechanism of solid polymer electrolyte aging on the electrochemical performance of all-solid-state batteries. The results show that electrolyte aging leads to capacity degradation, but reducing discharge rate or increasing operating temperature can alleviate cell deterioration, while thinner electrolyte film with acceptable lithium salt content is beneficial.
Article
Electrochemistry
Zhi-Hong Huang, Dah-Shyang Tsai, Chun-Jun Chiu, Quoc-Thai Pham, Chorng-Shyan Chern
Summary: Researchers have improved the performance of polymer electrolytes based on acrylonitrile through synthetic efforts, reducing the glass transition temperature Tg, increasing the ion conductivity, and improving stability.
ELECTROCHIMICA ACTA
(2021)
Article
Cell Biology
Jiatong Li, Jagadish K. Chhetri, Lina Ma
Summary: Physical resilience is a dynamic concept related to physiological response to stressors, influenced by age, genetics, diseases, as well as psychological, social, and environmental factors. Current research focuses on models and clinical assessment, aiming to improve treatment decisions, personalized diagnosis, disease management, and prevention strategies.
AGEING RESEARCH REVIEWS
(2022)
Article
Chemistry, Physical
Mohammed Bin Jassar, Carine Michel, Sara Abada, Theodorus De Bruin, Sylvain Tant, Carlos Nieto-Draghi, Stephan N. N. Steinmann
Summary: In this study, the aging process of the solid electrolyte interphase (SEI) in lithium-ion batteries was modeled under storage conditions. The growth of the SEI was found to be influenced by the use of carbonate-based solvents and the decomposition kinetics of the electrolyte. The role of surface reactions inside the SEI on the nature and selectivity of the decomposition kinetics was also emphasized.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yating Du, Kosuke Fujita, Sayoko Shironita, Yoshitsugu Sone, Eiji Hosono, Daisuke Asakura, Minoru Umeda
Summary: The study showed that storing nickel-based lithium-ion secondary batteries at 80 degrees C led to decreased battery capacity over time, primarily due to significant overvoltage changes at approximately 4.2 V. Additionally, post-mortem analysis revealed clear deterioration of the cathode active material in the tested batteries, while no significant changes were observed in the anode active material.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Analytical
Yuri A. Oliveira, Andre Olean-Oliveira, Marcos F. S. Teixeira
Summary: The electrocatalytic platforms based on palladium metallopolymer-graphene have been developed for the water splitting reaction, showing low potential for the water oxidation reaction and increased turnover frequency value. By investigating the interfacial phenomena, it was found that the introduction of graphene in the metallopolymer matrix changed the reaction mechanism. The new platform proved to be applicable for the water splitting reaction in fuel cells.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Pavel Loktionov, Roman Pichugov, Dmitry Konev, Anatoly Antipov
Summary: The gradual capacity fade of vanadium redox flow batteries (VRFB) is a major challenge for the further distribution of this technology. Recent studies suggest that the increase of the electrolyte average oxidation state (AOS) due to chemical and electrochemical side reactions is a major contributor to capacity fade, rather than just vanadium ions crossover. While many methods for capacity fade mitigation have been proposed, very little attention has been given to battery capacity recovery. This study proposes a novel method for operando VRFB capacity recovery, utilizing partial electro-reduction of the electrolyte in an electrolysis cell. The integration of this rebalancing system allows for high battery performance while maintaining nominal capacity indefinitely.
ELECTROCHIMICA ACTA
(2022)
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)