Article
Thermodynamics
Peyman Gholamali Zadeh, Ehsan Gholamalizadeh, Yijun Wang, Jae Dong Chung
Summary: Battery capacity fade analysis was conducted to evaluate the impact of different battery thermal management systems. The results showed that temperature limit had the least negative impact on battery life, while high temperature led to significant capacity fade. PCM provided a more uniform temperature distribution, but required additional heat dissipation mechanism. PCM combined with liquid cooling channels can meet the temperature requirements and enhance the performance of the battery heat management system.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Chunxiao Luan, Chen Ma, Chunyu Wang, Long Chang, Linjing Xiao, Zhihao Yu, Hongyu Li
Summary: This study investigates the impact of different connection topologies on battery pack performance, finding that a series-parallel connection topology can better reduce the influence of cell parameter variations and improve usable capacity and energy utilization. Increasing the quantity of serial or parallel connected cells can also reduce the discrete coefficients of capacity of the packs, with implications for battery manufacturers, electric vehicles, and energy storage systems applications.
JOURNAL OF ENERGY STORAGE
(2021)
Review
Chemistry, Physical
Alexis Geslin, Bruis van Vlijmen, Xiao Cui, Arjun Bhargava, Patrick A. Asinger, Richard D. Braatz, William C. Chueh
Summary: Considering use cases and selecting the right features are crucial in developing battery lifetime prediction models. Prediction of cell-to-cell variability between identically cycled cells requires features that are not reliant on cycling conditions. While features encoding cycling conditions can boost model accuracy, they may lead to reduced transferability on identically cycled cells.
Article
Energy & Fuels
Dae Hyun Jung, Dong Min Kim, Jonghoo Park, Sang-il Kim, TaeWan Kim
Summary: The temperature difference between internal and external temperatures in a battery module is significant, making it essential to study the module temperature when developing a battery cycle life model. According to experimental data, the total average temperature-based model exhibits the lowest average percentage error.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Yixiu Wang, Jiangong Zhu, Liang Cao, Bhushan Gopaluni, Yankai Cao
Summary: Machine Learning (ML) is a promising technique for battery health estimation and prediction. This paper proposes a transfer learning approach to reduce the amount of data that needs to be recollected for a new battery. The proposed two-stage model can predict the cycle life of NCM cells with high accuracy.
Article
Energy & Fuels
Dongcheul Lee, Byungmook Kim, Chee Burm Shin, Seung-Mi Oh, Jinju Song, Il-Chan Jang, Jung-Je Woo
Summary: In this study, a modeling approach is presented to estimate the combined effects of cyclable lithium loss and electrolyte depletion on the capacity and discharge power fades of lithium-ion batteries (LIBs). The validity of the modeling methods is demonstrated by comparing the results with experimental data. This methodology provides an effective way to estimate the discharge capacity and usable discharge power under different degradation modes.
Article
Energy & Fuels
J. G. Qu, Z. Y. Jiang, J. F. Zhang
Summary: This study investigates the degradation of lithium-ion batteries (LIBs) during fast charging, focusing on the effects of operating temperature and current rate. The results reveal that the most significant factor influencing battery capacity fade changes from lithium plating to the growth of the solid-electrolyte interface (SEI) with increasing operating temperatures. High operating temperatures can alleviate capacity fade at higher current rates, while accelerating capacity fade at lower current rates. The study also analyzes the changes in electrode morphology and identifies the main degradation mechanisms as electrode material detachment, electrode particle cracking, SEI growth, lithium plating, and structural changes in layered material crystal. These findings provide insights for the development of fast-charging strategies and battery management system design.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Brajesh Kumar Kanchan, Pitambar Randive
Summary: This work examines the importance of non-uniform anode microstructure on the capacity fading characteristics of Li-ion batteries. The study shows that smaller particle sizes near the anode-separator interface, the use of spherical particles, and decreased tortuosity can minimize capacity fading. Additionally, the study reveals the significant interaction between particle size distribution and microstructural characteristics, and the influence of anode microstructure is more prominent during charging compared to discharging, especially at higher current densities.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Deyang Huang, Ziqiang Chen, Shiyao Zhou
Summary: The paper proposes a heating method based on model prediction to support the operation of battery pack in low temperature, and experimental results demonstrate its effectiveness and energy efficiency.
Article
Chemistry, Applied
Xinghua Liu, Guoyi Chang, Jiaqiang Tian, Zhongbao Wei, Xu Zhang, Peng Wang
Summary: Maximizing the utilization of lithium-ion battery capacity is crucial for alleviating range anxiety in electric vehicles. A capacity utilization scheme based on a path planning algorithm is proposed to address the issue of battery pack inconsistency and reduce safety hazards. By using alternating cell discharge and finding the optimal energy path, the proposed scheme improves battery pack consistency and decreases relay loss.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Electrochemistry
Weiqi Zhou, Jiahao Zhu, Zheng Xu, Xing Xu
Summary: Due to the coupling effect of multiple mechanisms, the online capacity-loss diagnosis of lithium-ion batteries is still challenging and time-consuming. To address this issue, an improved model based on long short-term memory neural networks (LSTM) is proposed, which utilizes the powerful feature extraction ability of LSTM to identify model parameters and reduce dependence on training data. The verification results indicate that the proposed model improves the accuracy of capacity-loss diagnosis by 2% compared to the unidentified theoretical model, and exhibits better adaptability to different batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Haihui Chen, Hanying Xu, Yingying Zeng, Jinhua Cai, Limin Liu, Tianyi Ma, Fang Wang, Xinping Qiu
Summary: This study investigates the effects of Mn2+ on NSi@PANi electrodes in both half and full cells, and elucidates the mechanism for the fast capacity fade of LiMn2O4/NSi@PANi full cell. The results show that Mn2+ significantly accelerates the capacity fade of NSi@PANi anode in full cells, mainly due to the excessive growth of solid electrolyte interphase caused by the extra consumption of active Li+ and electrolytes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Casey Jones, Bing Li, Vikas Tomar
Summary: This study focused on simulating the operational effects of damaged Li-ion batteries in abusive environments, finding that punctures caused temperature spikes, sharp drops in capacity, and end of life within 43 cycles after the damage.
Article
Chemistry, Physical
Jiangong Zhu, Peiji Su, Mariyam Susana Dewi Darma, Weibo Hua, Liuda Mereacre, Xinyang Liu-Theato, Michael Heere, Daniel R. Sorensen, Haifeng Dai, Xuezhe Wei, Michael Knapp, Helmut Ehrenberg
Summary: This study reveals that low discharge rate leads to accelerated capacity fade, while high discharge rate results in more significant kinetic loss. It further identifies that the kinetic loss in high discharge cells primarily occurs in the cathode, while accelerated capacity fade in low discharge cells is mainly caused by degradation in the anode. SEM images also indicate worse interphases and dense agglomerated structure due to cycling the anode at a high potential.
JOURNAL OF POWER SOURCES
(2022)
Article
Electrochemistry
Fang Liu, Dan Yu, Weixing Su, Fantao Bu
Summary: A new mean-difference model (MDM) is proposed for online real-time estimation of the state of charge (SOC) and capacity of the battery pack. The model combines data-driven Autoregression (AR) model and equivalent circuit model (ECM) to improve the dynamic characteristics of the battery pack model. A differentiated updating strategy is proposed to update the model parameters online based on their changing characteristics and changing rate. Based on the new MDM, new mean-difference space equations and a multi-timescale estimation framework are proposed for the coupling relationship between battery pack SOC and capacity. The multi-timescale H infinity filter (Mts-HIF) is used for joint estimation of SOC and capacity. The proposed MDM is verified under different conditions and compared with another model, showing its effectiveness and accuracy. The evaluation of MDM and estimation algorithm gives a rating of 8 out of 10.
ELECTROCHIMICA ACTA
(2023)
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)