Article
Energy & Fuels
Quan Ouyang, Ruyi Fang, Guotuan Xu, Yonggang Liu
Summary: In this work, a multi-objective optimal charging control strategy is proposed, which intelligently adjusts the charging current according to user demand and electricity price, achieving both charging requirements and saving electricity costs and energy loss.
Article
Chemistry, Physical
Jorn M. Reniers, Grietus Mulder, David A. Howey
Summary: Lithium-ion batteries are increasingly used in liberalized electricity systems driven by economic optimization. A physics-based degradation model can decrease battery degradation and increase revenue. The approach increases battery lifetime in terms of years and cycles, while also improving revenue potential.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Guan-Jhu Chen, Yi-Hua Liu, Shun-Chung Wang, Yi-Feng Luo, Zong-Zhen Yang
Summary: A novel method is proposed to find the optimal charging pattern for a five stage constant current charging method, taking into account both charging time and charging loss. Experimental results show that this method improves charging efficiency and reduces temperature rise, leading to an increased battery life cycle.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Johannes Kriegler, Lucas Hille, Sandro Stock, Ludwig Kraft, Jan Hagemeister, Jan Bernd Habedank, Andreas Jossen, Michael F. Zaeh
Summary: Laser-induced structures in graphite anodes have been shown to significantly improve the performance characteristics of lithium-ion batteries, including discharge rate capability at different temperatures and discharge/charge rates. The study demonstrated that cells with structured anodes had higher capacity retention after 500 charge and discharge cycles, and post-mortem analyses showed a reduced surface layer formation on the structured anodes compared to their non-structured counterparts.
Article
Chemistry, Physical
S. Ludwig, I Zilberman, A. Oberbauer, M. Rogge, M. Fischer, M. Rehm, A. Jossen
Summary: This paper investigates the influence of aging on temperature estimation methods for lithium-ion cells and proposes an effective method to compensate for aging effects, leading to stable temperature estimation.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Patrick Muenster, Marcel Diehl, Joop Enno Frerichs, Markus Boerner, Michael Ryan Hansen, Martin Winter, Philip Niehoff
Summary: The study demonstrates that applying a 2C C-rate can reduce the formation time of lithium ion batteries, but may also result in the occurrence of lithium plating. However, using different C-rates during formation process does not significantly affect the thermal safety and cycling performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Maria-Magdalena Titirici
Summary: The past 20 years have seen a revolution in battery research, leading to the much-awaited Nobel Prize in Chemistry in 2019 for the development of Li-ion batteries. New materials and chemistries have improved performance and energy density, making batteries more efficient and cheaper each year. However, most research focuses solely on performance, overlooking the sustainability of battery components and chemistry.
ADVANCED ENERGY MATERIALS
(2021)
Review
Energy & Fuels
Susmi Anna Thomas, Mohan Reddy Pallavolu, Mohammad Ehtisham Khan, Jayesh Cherusseri
Summary: Two-dimensional graphitic carbon nitride (g-C3N4) is similar to graphene and has attracted great interest in electrochemical energy storage. It has unique features such as nitrogen-rich environment, abundant resources, good electronic conductivity, excellent physicochemical stability, fascinating electrochemical stability, and environmental friendliness, making it a promising electrode candidate for high-performance rechargeable batteries. The 2D g-C3N4 electrodes exhibit excellent electrochemical performance in terms of high capacity, high energy density, and long cycle life, which are beneficial for metal-ion batteries. In addition, the large surface area, porous architecture, and thin-layer structural features of these materials are favorable for high performance in metal air batteries.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Osman Bedrettin Karatas, Kemal Furkan Sokmen
Summary: This study investigates the thermal behavior of Lithium-ion batteries and proposes a module design and optimization for temperature management. The results suggest that specific cell connection distances and the inclusion of a metal insert can effectively lower battery temperature, extending lifespan and promoting equal aging.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Electrochemistry
Christiane Essl, Andrey W. Golubkov, Anton Fuchs
Summary: The study investigates the influence of three different aging paths on the thermal behavior, vent gas emissions, and vent gas composition of lithium-ion batteries. The results show that aging has a clear effect on failing behavior, with aged cells exhibiting less violent reactions, reduced temperatures, and lower gas production compared to fresh cells. This information is valuable for the scientific and industrial community working with lithium-ion batteries.
Article
Multidisciplinary Sciences
Tan P. Nguyen, Alexandra D. Easley, Nari Kang, Sarosh Khan, Soon-Mi Lim, Yohannes H. Rezenom, Shaoyang Wang, David K. Tran, Jingwei Fan, Rachel A. Letteri, Xun He, Lu Su, Cheng-Han Yu, Jodie L. Lutkenhaus, Karen L. Wooley
Summary: The rapid development of lithium-ion batteries has brought substantial benefits to society, but also highlighted ethical and environmental challenges. Organic redox-active materials may offer a potential alternative for sustainable batteries in the future.
Article
Energy & Fuels
Xianqiang Li, Tao Zeng, Honglian Qin, Ran Huo, Yingbo Liu, Dexun Wei, Xuan Ding
Summary: The study investigated the degradation behavior of large-format prismatic lithium-ion batteries, revealing a two-stage degradation pattern where the second stage may be caused by loss of active materials and loss of lithium inventory. Mechanical force was identified as one of the factors leading to rollover failure in the batteries.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Yunjie Li, Stefanie Arnold, Samantha Husmann, Volker Presser
Summary: The rapid growth of electric vehicles and electronic devices has led to a significant increase in the number of spent batteries that have reached the end of their life. It is crucial to find a sustainable and efficient approach to battery recycling. A type of MXene material, AD-Ti(3)C(2)Tz electrode, has been developed and directly used as free-standing anodes for lithium-ion and sodium-ion batteries without the need for binder or carbon additives. The AD-Ti(3)C(2)Tz electrode exhibits excellent electrochemical performance and can be easily recycled, further converted into TiO2/C hybrids with adjustable carbon content, enabling its second life in various applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jay Singh, Seulgi Lee, Priya Yadav, Sungjin Kim, Jaekook Kim, Alok Kumar Rai
Summary: In this study, a hydrothermal synthesis method was used to produce a mulberry-like mesoporous CoMoO4 anode material with improved electrochemical properties for lithium ion and sodium ion batteries. The unique morphology of the CoMoO4 material led to high reversible discharge capacity and long cycle stability, making it a promising alternative high-performance anode material for sodium ion battery applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Brady Planden, Katie Lukow, Paul Henshall, Gordana Collier, Denise Morrey
Summary: This paper presents an improved algorithm for real-time battery modelling, which can create and simulate reduced-order physics-based models in Julia and implement in-vehicle model creation on ARM-based computing architectures. The paper also includes parametric sensitivity analysis, experimental validation, and performance comparison with MATLAB implementation.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Electrochemistry
Thomas Roth, Luiza Streck, Andreas Graule, Philipp Niehoff, Andreas Jossen
Summary: To assess the quality of newly manufactured lithium-ion cells, self-discharge measurements are carried out after production in a process known as aging. The aging process is time-consuming and expensive due to relaxation effects that disrupt the self-discharge measurements. This study investigated different methods for electrical self-discharge measurement and found that long-term disturbances caused by anode overhang significantly affected all measurements for several weeks.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Markus Spielbauer, Marco Steinhardt, Jan Singer, Andreas Aufschlaeger, Oliver Bohlen, Andreas Jossen
Summary: Computed tomography and gray-value analysis were used to investigate the influence of state of charge on the size of gaps in cylindrical lithium-ion batteries. The results showed that the state of charge had a significant impact on the gap size for new cells, with a substantial reduction after the first cycles.
Article
Electrochemistry
Erfan Moyassari, Simon Kuecher, Nicola Michael Jobst, Chia-Chin Chang, Shang-Chieh Hou, Franz B. Spingler, Margret Wohlfahrt-Mehrens, Andreas Jossen
Summary: During the charging or discharging of a lithium-ion battery (LIB), the volume of the electrodes can change due to lithiation or delithiation, which has a significant impact on the battery's lifetime. Factors such as initial porosity, particle shape, and silicon content affect the thickness change of various electrode materials.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Luiza Streck, Thomas Roth, Peter Keil, Benjamin Strehle, Severin Ludmann, Andreas Jossen
Summary: This study qualitatively compares the voltage hold and voltage decay methods for detecting side reactions using a high precision coulometry tester. The results show that both methods deliver comparable results for determining the differential capacity, with a discrepancy of 15% observed only at 90% state of charge (SoC) due to the peak shape of the analysis curve. It is advantageous to analyze the shape of the respective cells when performing such measurements. Furthermore, the evaluation of end of charge point and end of discharge point slippage reveals that couple side reactions dominate leakage currents at higher SoCs and lead to reversible losses, while irreversible losses remain almost constant for SoCs higher than 50%.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Franziska Friedrich, Alexander Kunz, Andreas Jossen, Hubert A. Gasteiger
Summary: Using isothermal micro-calorimetry, the heat generation of lithium- and manganese-rich layered oxides (LMR-NCMs) during the first cycle is investigated. It is found that irreversible structural rearrangements during activation lead to a considerable generation of heat. Only a fraction of the lost electrical work is converted into waste heat, suggesting that the heat flow profile of the first charge is unique.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Julius Schmitt, Mathias Rehm, Alexander Karger, Andreas Jossen
Summary: This study demonstrates a method of using reconstructed open circuit voltage (OCV) curves to analyze the partial charging curves of a commercial lithium-ion cell, providing valuable information about degradation modes and remaining cell capacity. Accurate OCV reconstruction and degradation mode estimation can be achieved when a state of charge (SOC) window between 20% and 70% is available. The method is also applicable to charging curves at higher current rates by considering an additional overpotential.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Nils Collath, Martin Cornejo, Veronika Engwerth, Holger Hesse, Andreas Jossen
Summary: Lithium-ion cells degrade due to internal aging effects, which can affect the economics of battery energy storage systems. This study presents a model predictive control framework for designing aging aware operation strategies, allowing for benchmarking of optimization models and determination of the optimal aging cost. The results show that using this framework can significantly increase the lifetime profitability of a BESS compared to the prevalent approach. Furthermore, the study demonstrates that recent increases in electricity market prices have led to a substantial increase in achievable lifetime profit.
Article
Chemistry, Physical
Alexander Karger, Julius Schmitt, Cedric Kirst, Jan P. Singer, Leo Wildfeuer, Andreas Jossen
Summary: In this study, a novel mechanistic calendar aging model is proposed for a commercial lithium-ion cell with NCA cathode and silicon-graphite anode. The model parameterization is based on component states of health and accurately predicts capacity with < 1% mean deviation for different storage conditions. The check-up compensation significantly increases the predicted lifetime of the cell.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Erfan Moyassari, Zheng Li, Benedikt Tepe, Luiza Streck, Andreas Jossen
Summary: This work presents a study on the cycle characterization of silicon-oxide-based (SiOx) cells, focusing on the impact of real load profiles and state-of-charge (SoC) ranges while varying the SiOx content in the cells. The experimental results demonstrate that the different SiOx content of the investigated cells and the SoC range significantly influence the cycle behavior of the cells, and cycling under high SoC conditions accelerates capacity fade and leads to higher SoH loss. The findings also indicate that SiO-based cells exhibited higher aging than traditional graphite-based cells, and the capacity fade rate increased at higher SiOx content.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Thomas Roth, Luiza Streck, Nedim Mujanovic, Martin Winter, Philip Niehoff, Andreas Jossen
Summary: This study investigated the differentiation between SEI growth and anode overhang equalization processes in NMC622/graphite single-layer pouch cells by measuring the transient self-discharge. The measurement was conducted directly after formation and during 20 weeks of calendar storage at different states-of-charge (SOC). The results showed that the transient behavior persisted throughout the measurement duration, even at a low SOC, but the impact of SEI growth and anode overhang equalization was minimized at low SOC.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
F. F. Oehler, A. Graule, S. Kuecher, T. Roth, A. Adam, J. Li, E. Ronge, R. Moertel, A. Jossen
Summary: This study presents a novel method for measuring local potentials in lithium-ion batteries and addresses the stability issue of multiple reference electrodes. Experimental results demonstrate the high reproducibility and applicability of this method.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Computer Science, Information Systems
Michael Schimpe
Summary: Operating Lithium-ion batteries requires a deep understanding of their performance. Literature states the necessity for large datasets for field data studies; however, these are not available today. In this article, an overview of the possibilities of sourcing battery field data from Android devices is presented. An Android device study featuring multiple devices is conducted, evaluating signal quality and differences, and exemplary data analysis with a focus on state estimation algorithms is then tested on the sourced data.
Article
Electrochemistry
Philipp Jocher, Michael K. Kick, Manuel Rubio Gomez, Adrian V. Himmelreich, Alena Gruendl, Edgar Hoover, Michael F. Zaeh, Andreas Jossen
Summary: This study presents a method for analyzing the electrical resistance of planar contacts and compares it with traditional joining techniques. The study also evaluates factors affecting measurement accuracy and conducts an economic assessment of the electric conductive adhesive.
Article
Energy & Fuels
Joaquin Luque, Benedikt Tepe, Diego Larios, Carlos Leon, Holger Hesse
Summary: This study proposes a machine learning approach to estimate battery performance indicators from time series input data. The results show that the required indicators can be rapidly estimated with an average relative error of less than 10%, demonstrating that machine learning is a suitable alternative for obtaining a fast approximation of battery system behavior.
Article
Electrochemistry
Axel Durdel, Sven Friedrich, Lukas Huesken, Andreas Jossen
Summary: Silicon-dominant anode in lithium-ion batteries lacks an electrochemical model, and this work presents a validated parametrization for it. The model is based on electrode manufacturing values, lab cell measurements, and literature data, and is validated through charge/discharge tests.