Review
Multidisciplinary Sciences
S. Hamidreza Beheshti, Mehran Javanbakht, Hamid Omidvar, Md Sazzad Hosen, Annick Hubin, Joeri Van Mierlo, Maitane Berecibar
Summary: Formation of a suitable solid-electrolyte interphase (SEI) is recognized as a method to improve the performance of lithium-ion batteries. Introducing reduction-type additives to carbonate electrolytes has been a commonly used method to generate effective SEI. This article provides a general review and classification of the SEI formation processes, impacting parameters, and the functionality of the additives.
Article
Electrochemistry
Seongki Ahn, Minori Fukushima, Hiroki Nara, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
Summary: The study found that the use of fluoroethylene carbonate (FEC) increased internal resistance and decreased the cyclability of LIC full-cells, while LICs with vinylene carbonate (VC) additives exhibited good cyclability over 4000 cycles due to the presence of polymeric species in the solid electrolyte interphase (SEI). This detailed investigation into the function of SEI compounds derived from VC additives and their effect on cyclability will provide new insights into optimizing LIC full-cell configurations with appropriate electrolyte additives.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Kyle S. Jiang, Gustavo M. Hobold, Rui Guo, Kyeong-Ho Kim, Aaron M. Melemed, Dongniu Wang, Lucia Zuin, Betar M. Gallant
Summary: This study investigates the correlation between the structural features of sulfonyl/sulfamoyl fluoride additives and the cycle performance of lithium-ion batteries. The results show that, in addition to coordination, the reactivity of the solvent and the structural features of the additives strongly regulate the cycling efficiency.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Yosuke Ugata, Ryoichi Tatara, Ji-young Ock, Jingjun Zhang, Kazuhide Ueno, Masayoshi Watanabe, Kaoru Dokko
Summary: This study investigated the effects of anionic species on the liquid structure and electrochemical reactions of highly concentrated electrolytes (HCEs) in Li-ion batteries. It was found that Li salts with weakly Lewis basic anions increased the Li+ ion activity and enhanced the interfacial reaction rate of the electrode.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Inorganic & Nuclear
Zhi-Xiong Huang, Xue-Li Zhang, Xin-Xin Zhao, Yuan-Yuan Zhao, Vanchiappan Aravindan, Yu-Hang Liu, Hongbo Geng, Xing-Long Wu
Summary: Electrical energy storage systems have attracted attention for the development of renewable energy sources. Lithium-ion batteries (LIBs) have achieved success, but the rising cost and availability of lithium have led to the exploration of alternative systems such as sodium-ion batteries (SIBs). Electrolyte additives play a crucial role in stabilizing the electrolyte interfaces and enhancing battery performance.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Yuri Surace, Daniela Leanza, Marta Mirolo, Lukasz Kondracki, C. A. F. Vaz, Mario El Kazzi, Petr Novak, Sigita Trabesinger
Summary: The study suggests that replacing graphite with alloying and conversion materials, as well as adding sacrificial electrolyte FEC, helps improve the energy density and cycling stability of lithium-ion batteries. By investigating the formation process of FEC-derived particles chemically and morphologically, a new theoretical foundation is provided for the future design of sacrificial fluorine-based additives.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Chenbo Zhu, Chenghao Fan, Emiliano Cortes, Wei Xie
Summary: This study investigates the mechanism of Rhodamine B (RhB) as an electrolyte additive in Li/graphite cells. Through in situ surface-enhanced Raman spectroscopy (SERS), researchers found that the adsorption orientation of RhB molecules on the surface of graphite can be modulated by the applied potential, improving the cycle performance and rate capability of the battery while suppressing electrolyte solvent decomposition and electrode corrosion. The findings suggest that SERS is a powerful tool for interfacial analysis of battery systems and offer new insights for rational design of electrolyte additives.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Wen-Chen Wang, Yi-Han Song, Guo-Duo Yang, Rui Jiao, Jia-Yu Zhang, Xing-Long Wu, Jing-Ping Zhang, Yan-Fei Li, Cui-Yan Tong, Hai-Zhu Sun
Summary: Carbonized polymer dots (CPDs) as electrolyte additives, designed and synthesized by microwave and hydrothermal methods, exhibit stable performance in electrolytes for at least 3 months due to controllable functional groups containing nitrogen or oxygen and form clusters with Li+ through electrostatic interactions. The homogeneous dispersion of Li and inhibition of dendrite formation result in an excellent capacity retention of 93.8% after 200 cycles in Li//LiFePO4 full cells.
Article
Chemistry, Physical
Xing Xin, Chunyu Cui, Kaiyuan Shi, Xuting Yuan, Xing Li
Summary: Li dendritic growth is a critical obstacle in Li metal batteries, which can lead to safety hazards. A new electrolyte based on halogen ions has been investigated and found to inhibit Li dendrite formation and improve cycling performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Fu Jie Yang, Jing Bai, Bing Shao, Qing Feng Liu, Chong Mao, Yuan Qing Zhang, Xin Ming Fan, Pi Pi Wang, Jin Huang
Summary: Rational chemical structures of solid electrolyte interphase (SEI) films are crucial for high energy density batteries operating at high-voltage and high-temperature conditions. In this study, uracil (UC) and 2-thiouracil (TUC) as bifunctional electrolyte additives were used to precisely tailor the SEI films in a LiNi0.5Co0.2Mn0.3O2||graphite pouch cell operated at an elevated upper cutoff voltage. The UC-induced SEI films exhibited suitable microstructures on both electrodes, inhibiting gas generation and protecting the structural stability of the cathode and anode materials.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Electrochemistry
Kai Zhou, Haohua Yang, Jianhua Zhou, Yan Tian, Jingwen Guo, Meihui Yuan, Libin Liu, Ligang Gai
Summary: Supplementing VC and ES additives into the electrolyte is a simple and effective way to improve the electrode performance of LIBs. This paper reports the abnormal electrode behavior of graphite anodes operating with the VC-ES electrolyte at high C rates (& GE; 0.5 C). A dynamic evolution mechanism of SEI is proposed based on electrochemical analysis and surface examination of graphite anodes. The VC-ES electrolyte shows great potential for application in LIBs with graphite anode operating at high temperatures.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Dongxu Ouyang, Wentao Song, Kyoungho Oh, K. W. Ahn, David S. Hal, Toren Hynes, Jian Wang, Jeff Dahn
Summary: Electrolyte additives significantly affect the performance of lithium-ion cells. In comparative studies, lab-made 95% pure PDO outperformed commercial 99.8% pure PDO in certain tests. Among the PDO-containing cells, the blend of 2%PDO+ 1%LFO showed the best performance in NMC811 cells. PDO-based blends are more promising in cells with higher nickel content.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Qiuyan Liu, Shiwei Xu, Xiaoyun Li, Renjie Chen, Xuefeng Wang, Yurui Gao, Zhaoxiang Wang, Liquan Chen
Summary: In this work, adding poly(ethylene oxide) (PEO) into a propylene carbonate (PC)-based electrolyte can transform it into a polymer electrolyte with high ionic conductivity. By competing with PC in solvating lithium ions, PEO weakens the Li+-PC bond strength and facilitates the desolvation of PC. This unique solvation structure inhibits PC-cointercalation-induced graphite exfoliation and enhances the reduction stability of the electrolyte.
Article
Chemistry, Physical
Biswarup Pathak, Sandeep Das, Surya Sekhar Manna
Summary: The choice of proper solid electrolyte interphase (SEI) additives is important for the formation of a stable SEI layer that protects the necessary electrolyte components in a battery. The study investigates the reduction pathways followed by the solvent and additives during SEI formation and highlights the significant role played by additives in determining the extent of SEI formation. The results suggest that for Al batteries, VC additives with EC solvents may be a better choice for a stable SEI layer.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Gaojing Yang, Simeng Zhang, Suting Weng, Xiaoyun Li, Xuefeng Wang, Zhaoxiang Wang, Liquan Chen
Summary: Research has enhanced the stability of SEI film on the graphite substrate for lithium deposition, improving the efficiency of lithium plating/stripping cycle. The FSI- anion was found to play a key role in the formation of SEI film and protecting the graphite substrate.
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)