Article
Electrochemistry
R. Trocoli, A. Morata, C. Erinmwingbovo, F. La Mantia, A. Tarancon
Summary: This study investigated the self-discharge process in aqueous rechargeable lithium-ion batteries, revealing that the lower stability of water leads to more favorable self-discharge characteristics compared to organic electrolytes. The self-discharge process can be divided into three different regions with a sequential lower decay rate of voltage and capacity.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Chu Xiao, Xianqiong Tang, Jinfeng Peng, Yanhuai Ding
Summary: Monolayer BSi has been predicted as a phonon-mediated superconductor and has been studied for its potential as an anode material for rechargeable batteries. The theoretical capacities of monolayer BSi towards Li and Mg storage are 1374 mAhg(-1) and 2749 mAhg(-1) respectively, with controllable volume change and high ion diffusion rate ensuring high performance in Li and Mg-ion batteries. These results provide insight into the energy-storage mechanisms and potential applications of 2D BSi materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yong Wang, Yiyu Wu, Peiyuan Mao, Yunmiao Fan, Xi Wang, Hongyu Xiang, Zhongfeng Li, Kai Li, Chaoquan Hu
Summary: This study demonstrates the use of modified montmorillonite as a separator film to enhance the performance of Li-S batteries. The modified film effectively retards the shuttle effect and improves the rate capability and cycling stability of Li-S batteries. The results show that the modified Li-S batteries exhibit higher energy density and cycling stability under different cycling conditions.
Article
Materials Science, Multidisciplinary
Peng Xiao, Na Jin, Zifeng Lin
Summary: In this study, the thermodynamic stability and lithium storage properties of double transition metal o-MAX phases were theoretically investigated using density functional theory (DFT) calculations. The research predicts a promising theoretical capacity for Sc2TiAlC2 and indicates the potential for fast Li-ion diffusion in M2TiAlC2. This work provides insights for exploring MAX phases as promising materials for lithium-ion storage applications.
MATERIALS RESEARCH LETTERS
(2021)
Article
Chemistry, Physical
Muhammad Ashfaq Jamil, Ghulam Ali, Khurram Imran Khan, Faiza Jan Iftikhar, Sher Zaman, Shoyebmohamad F. Shaikh, Bidhan Pandit, Qamar Wali, Supriya A. Patil
Summary: In this study, SnF2/C nanocomposite with high capacity and stable cycling performance was prepared via a facile ball-milling method. The nanocomposite exhibited high rate capability and underwent conversion and alloying reactions during the discharge-charge process.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Computer Science, Information Systems
Shahenda M. Abdelhafiz, Mohammed E. Fouda, Ahmed G. Radwan
Summary: Lithium-ion batteries play a crucial role in many applications, and therefore, modeling their behavior is necessary in various fields. This paper proposes seven dynamic models to simulate the discharging behavior of lithium-ion batteries, and their efficacy in fitting different time-domain responses is tested through parameter identification. The results show that these models have an average absolute normalized error as low as 0.0057.
Article
Chemistry, Inorganic & Nuclear
R. I. Tomov, L. Mihaylov, L. R. Bird, Ev. Vassileva, R. V. Kumar, M. Chhowalla, T. Spassov
Summary: A binder- and carbon-free electrode for lithium-ion batteries was prepared using a hierarchically porous Ag-based current collector. The electrode exhibited excellent cycling and rate properties, maintaining high cycling stability even at relatively high current rates.
DALTON TRANSACTIONS
(2022)
Article
Green & Sustainable Science & Technology
Fathima Ali Kayakool, Binitha Gangaja, Shantikumar Nair, Dhamodaran Santhanagopalan
Summary: The recycling and regeneration of graphite from spent Li-ion batteries can be utilized for the fabrication of Li-ion based all-carbon dual-ion batteries, achieving promising electrochemical performance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Jun Zhang, Rusheng Fu, Yue Shi, Cancan Bian, Jingjing Ji, Liang Yun, Xufeng Zhou, Zhaoping Liu
Summary: Graphene as a functional additive in Li-ion batteries shows potential, but the stacking manner and mass loading need to be controlled within a certain range to prevent steric hindrance effects.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Xin Cao, Yu Qiao, Min Jia, Ping He, Haoshen Zhou
Summary: This study reviews the potential application of Li-rich and Li-excess oxides as cathode materials for next-generation Li-ion batteries, discusses the challenges in using Li-excess oxides, and explores mechanisms to address these issues. Future research directions in the field are also proposed based on advanced characterizations and theory calculations.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Sergio Pinilla, Sean Ryan, Lorcan McKeon, Meiying Lian, Sebastien Vaesen, Ahin Roy, Wolfgang Schmitt, Jonathan N. Coleman, Valeria Nicolosi
Summary: Additive manufacturing strategies are gaining importance in lithium-ion battery field due to their advantages such as rapid prototyping, waste reduction, and complex 3D structures. These techniques are also gaining attention for micro-energy storage devices. In this study, various additive manufacturing techniques were compared to standard methodologies, evaluating their electrochemical performance and correlating it with physical changes induced by the printing process. The use of LTO/CNT-based inks revealed that the arrangement of conductive additives significantly affects the rate performance of the device, and a model was used to identify the limiting factor on printed electrodes and correlate it with the material arrangement produced by each technique.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Man Yuan, Chenyang Meng, Ang Li, Bin Cao, Yue Dong, Dengke Wang, Xuewei Liu, Xiaohong Chen, Huaihe Song
Summary: A general multi-interface strategy towards densified carbon materials with enhanced electrochemical performance for both Li-ion and Na-ion batteries is proposed. The constructed interfaces between crystalline graphene and carbon matrix provide a pathway for volatile gas escape during pyrolysis and also a conductive highway for ions and electrons. The graphene/hard carbon spheres show high reversible capacities, high-rate performance, and low temperature properties, indicating their great potential application in practical batteries.
Review
Chemistry, Multidisciplinary
Zhiming Zhao, Husam N. Alshareef
Summary: This review provides an extensive overview of the current status and future prospects of sustainable dual-ion batteries beyond Li-ion. These new batteries utilize abundant and low-cost cations, holding significant promise for large-scale energy storage solutions.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Kanglong Guo, Chunlei Zhu, Huaping Wang, Shihan Qi, Junda Huang, Daxiong Wu, Jianmin Ma
Summary: Increasing the cut-off voltage of cathodes improves the energy density of Li||LiCoO2 batteries, but also leads to rapid battery degradation due to oxidation and deterioration. However, by using bis-(benzenesulfonyl)imide (BBSI) as an additive, a uniform and highly Li+ conductive cathode electrolyte interphase (CEI) is constructed, which stabilizes the batteries at 4.6 cut-off voltage and exhibits superior cycling and high-rate performance. The CEI, consisting of LiF and conductive Li+ moieties, improves Li+ migration, alleviates cathode degradation, and reduces other secondary degradation factors. Li||LiCoO2 batteries with 1% BBSI-containing electrolyte sustain 81.30% of initial capacity after 300 cycles at 0.5C, and 88.27% of initial capacity even after 500 cycles at 2C/3C.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jongee Park, Syeda Afrinish Fatima
Summary: Two-dimensional monolayer titanium carbide (TiC3) was studied as a suitable electrode material for lithium-ion batteries. It showed excellent structural stability, high mechanical stiffness, good electronic conductance behavior, and favorable Li adsorption. TiC3 maintained its structure and metallicity after Li adsorption, with high electrical conductivity. It has a high specific capacity, low diffusion energy barrier, low open circuit voltage, and small volume change during lithiation. TiC3 monolayer can be a promising anode material for lithium-ion batteries due to its excellent performance and rigidness.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Alexander Van-Brunt, Patrick E. Farrell, Charles W. Monroe
Summary: This article presents the Onsager-Stefan-Maxwell thermodiffusion equations, which explain the Soret and Dufour effects in multicomponent fluids. This framework preserves the structure of the isothermal Stefan-Maxwell equations and separates the forces driving diffusion and heat flow. The authors demonstrate the feasibility of this method through numerical simulations.
Review
Electrochemistry
Peter M. Attia, Alexander Bills, Ferran Brosa Planella, Philipp Dechent, Goncalo dos Reis, Matthieu Dubarry, Paul Gasper, Richard Gilchrist, Samuel Greenbank, David Howey, Ouyang Liu, Edwin Khoo, Yuliya Preger, Abhishek Soni, Shashank Sripad, Anna G. Stefanopoulou, Valentin Sulzer
Summary: This article reviews the phenomenon of "knees" in the aging trajectories of lithium-ion batteries and discusses their pathways, key design and usage sensitivities, as well as the challenges and opportunities for knee modeling and prediction.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Malgorzata E. Wojtala, Alana A. Zulke, Robert Burrell, Mangayarkarasi Nagarathinam, Guanchen Li, Harry E. Hoster, David A. Howey, Michael P. Mercer
Summary: This study used entropy profiling to track aging markers in graphite-silicon blend negative electrodes, revealing cycling direction-dependent entropy differences and an increase in entropy hysteresis with age.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Alexander Van-Brunt, Patrick E. Farrell, Charles W. Monroe
Summary: We introduce a method to incorporate local electroneutrality into Onsager-Stefan-Maxwell electrolytic transport models, avoiding the need for differential systems with an algebraic constraint. We develop flux-explicit transport laws for general multicomponent electrolytes using invertible matrix calculations. By defining conjugate component concentrations and fluxes, we preserve the structures of the Gibbs function and energy dissipation, enabling symmetric Onsager reciprocal relations. This framework reproduces known constitutive laws and proposes laws for salt solutions in two-solvent blends.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Toby L. Kirk, Adam Lewis-Douglas, David Howey, Colin P. Please, S. J. Jon Chapman
Summary: In this work, the local nonlinear electrochemical impedance spectroscopy (NLEIS) response of a lithium-ion battery is analyzed and model parameters are estimated from measured NLEIS data. The analysis assumes a single-particle model that includes nonlinear diffusion of lithium within the electrode particles and asymmetric charge transfer kinetics at their surface. Analytical formulae for the impedances up to the second harmonic response are systematically derived, allowing the interpretation of each contribution in terms of physical processes and nonlinearities in the model. The validation of the model is demonstrated by predicting time-domain voltage response using the parameterized model, showing excellent agreement with measured voltage time-series data (11.1 mV RMSE).
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Engineering, Mechanical
Samuel Greenbank, David A. Howey
Summary: The study compares a piecewise-linear approach and a Gaussian process regression model in battery health forecasting and finds that they perform equally well in terms of median error on the training dataset, with the piecewise-linear approach performing slightly better at the 95th percentile of error. The feature selection process also demonstrates the benefit of limiting correlation between inputs. Furthermore, additional trials confirm the robustness of the piecewise-linear approach to changes in input size and availability of training data.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Energy & Fuels
Jorn M. Reniers, David A. Howey
Summary: Large-scale grid-connected lithium-ion batteries are increasingly being deployed to support renewable energy roll-out. However, the impact of system design choices and ancillary system controls on long-term degradation and efficiency of these systems has rarely been considered. This study provides detailed simulation results on a 1 MWh grid battery system, showing that the variation in degradation rate of individual cells dominates the system behaviour over the lifetime. The importance of careful thermal management system control is also demonstrated, improving overall efficiency and total usable energy over time.
Article
Thermodynamics
Andrew A. Wang, Delia Persa, Sara Helin, Kirk P. Smith, Charles W. Monroe
Summary: Speed-of-sound measurements were conducted to investigate the changes of isentropic bulk modulus Ks in an electrolyte system composed of lithium hexafluorophospate (LiPF6) in blends of propylene carbonate (PC) and ethyl methyl carbonate (EMC). The Ks values were accurately determined for nine different compositions, including salt molality m, mass fraction of PC in the PC:EMC cosolvent f, and temperature T. The results showed that the compressibility of the electrolyte varied with the solvent ratio, salt content, and temperature, with Ks ranging from 1 to 3 GPa. The acoustical properties related to the composition provided insights into the speciation and solvation states in the bulk electrolytes.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2023)
Article
Electrochemistry
Kirk P. Smith, Rohit Rungta, Andrew A. Wang, Charles W. Monroe
Summary: Tris-bipyridine iron (II) triflate was synthesized and used as an active species in a symmetric disproportionation redox-flow-battery chemistry without a supporting electrolyte. Cyclic voltammetry was used to characterize the coordination complex salt solution (0.1 M in acetonitrile). The full-cell charge/discharge cycling and impedance testing were performed in reactors with a porous Daramic 175 separator membrane. The system exhibited over 800 cycles and achieved more than 80% round-trip energy efficiency.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Taeho Jung, Andrew A. Wang, Charles W. Monroe
Summary: Most liquid lithium-ion battery electrolytes use cosolvent blends but the dominant electrochemical transport models assume a single-solvent approximation which doesn't consider the effect of nonuniform cosolvent ratios on cell voltage. Measurements were performed on electrolytes with fixed-reference concentration cells and liquid-junction potentials were observed when only the cosolvent ratio was polarized. A transport model for EMC:EC:LiPF6 solutions based on irreversible thermodynamics was proposed, and junction coefficients of EC and LiPF6 were reported.
Article
Chemistry, Multidisciplinary
Andrew A. Wang, Samuel Greenbank, Guanchen Li, David A. Howey, Charles W. Monroe
Summary: Liquid lithium-battery electrolytes commonly use multiple solvents to balance conductivity and viscosity. Current continuum models that treat cosolvent systems as single entities have been found to be inaccurate. Simulations have shown extreme solvent segregation near electrode/liquid interfaces, providing new insights for electrolyte design.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Review
Energy & Fuels
A. A. Wang, S. E. J. O'Kane, F. Brosa Planella, J. Le Houx, K. O'Regan, M. Zyskin, J. Edge, C. W. Monroe, S. J. Cooper, D. A. Howey, E. Kendrick, J. M. Foster
Summary: The article critically reviews the methods for measuring or inferring parameters within the isothermal DFN framework for lithium-ion batteries, and provides a searchable database of parameters for the standard DFN model. It discusses the advantages, disadvantages, and limitations of these methods.
PROGRESS IN ENERGY
(2022)
Article
Electrochemistry
Jie Lin, Howie N. Chu, Charles W. Monroe, David A. Howey
Summary: Temperature strongly affects battery performance, safety and durability. This study proposes new methods to accurately measure the thermal properties of lithium-ion pouch cells.
BATTERIES & SUPERCAPS
(2022)
