{"title":"A CNN-LSTM Method Based on Voltage Deviation for Predicting the State of Health of Lithium-Ion Batteries","authors":"Fen Xiao, Wei Yang, Yanhuai Ding, Xiang Li, Kehang Zhang, Jiaxiong Liu","doi":"10.1002/bte2.20240036","DOIUrl":"https://doi.org/10.1002/bte2.20240036","url":null,"abstract":"<p>Ensuring the accurate estimation of the state of health (SOH) of lithium-ion batteries (LIBs) is essential for the reliability and safe operation of battery management systems. The prediction of SOH has witnessed significant advancements recently, largely propelled by the powerful nonlinear modeling capabilities of deep learning. Despite these advancements, the intricate nature of the battery degradation process poses a challenge in accurately simulating it using measurement data. In this paper, we introduce a novel approach by focusing on the charging voltage deviation, which is defined as the discrepancy between the charging voltage and its average value over each charge/discharge cycle. This deviation is rooted in the electrochemical reactions that lead to capacity decay and voltage fluctuations. We propose a convolutional neural network-long short-term memory (CNN-LSTM) hybrid framework aimed at estimating the SOH of the battery. For each charge/discharge cycle, a conventional CNN is employed to extract key capacity features from sequential charging data, encompassing voltage deviation, current, and charging duration. Following this, an LSTM network is leveraged to build the long-term dependencies of battery capacities, facilitating the SOH prediction process. The experimental results indicate that our model not only simplifies the computational complexity but also significantly enhances the precision of SOH predictions. This innovative approach holds promise for the advancement of battery management systems, ensuring their continued reliability and safety.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-30DOI: 10.1002/bte2.20240065
Manuel Aranda, Rafael Klee, Pedro Lavela, José L. Tirado
{"title":"Improving the Performance of Potassium Birnessite Cathodes for Sodium-Ion Batteries by Partial Ion Exchange","authors":"Manuel Aranda, Rafael Klee, Pedro Lavela, José L. Tirado","doi":"10.1002/bte2.20240065","DOIUrl":"https://doi.org/10.1002/bte2.20240065","url":null,"abstract":"<p>The current study explores the synthesis and electrochemical performance of potassium birnessite as a cathode material for sodium-ion batteries (SIBs), achieved through partial ion exchange resulting from partial potassium deintercalation followed by sodium intercalation during the first electrochemical cycle. Three samples of potassium birnessite (KB400, KB500, and KB600) are synthesized using a sol–gel method and subsequently calcined at different temperatures to evaluate the influence of crystal water and K<sup>+</sup> ions on structural stability and their electrochemical performance. X-ray diffraction analysis confirms the formation of samples with high crystallinity. Additionally, X-ray fluorescence, X-ray photoelectron spectroscopy, and thermogravimetric analysis are employed to verify their chemical composition and oxidation states. Among the samples, KB500 exhibits the most favorable electrochemical performance, achieving a specific capacity of 175 mAh g<sup>–1</sup> at C/10 when cycled within a voltage range of 1.6–4.2 V. Long-term cycling tests at a narrower potential range of 2–3.6 V demonstrate promising values of 110 mAh g<sup>–1</sup> in capacity for KB500, with a retention of 90% over 80 cycles. The presence of potassium and interlayer water is crucial for enhancing structural stability and ion diffusion. These findings suggest that KB500 could serve as a promising cathode material for SIBs, providing a structurally stable option for energy storage applications.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-30DOI: 10.1002/bte2.20240066
Souraya Goumri-Said, Mohamed Issam Ziane, Mousaab Belarbi, Mohammed Benali Kanoun
{"title":"Tuning the Electronic and Optical Properties of Cu2ZnSn1−xGexS4 Alloys for Photovoltaic Applications: A Hybrid Density Functional Theory and Device Simulation Approach","authors":"Souraya Goumri-Said, Mohamed Issam Ziane, Mousaab Belarbi, Mohammed Benali Kanoun","doi":"10.1002/bte2.20240066","DOIUrl":"https://doi.org/10.1002/bte2.20240066","url":null,"abstract":"<p>In this study, we explore the electronic and optical properties of Cu<sub>2</sub>ZnSn<sub>1−<i>x</i></sub>Ge<sub><i>x</i></sub>S<sub>4</sub> using density functional theory combined with hybrid functional calculations. Alloying Cu<sub>2</sub>ZnSnS<sub>4</sub> with Ge and the formation of a band gap gradient are investigated as strategies to improve the efficiency of single-junction photovoltaic (PV) devices and as top cells in tandem solar cells. Our findings reveal that increasing Ge concentration leads to a rise in the band gap, with a small bowing constant (<i>b</i> ≈ 0.02 eV) indicating good miscibility of Ge in the host lattice. The electronic properties suggest that lower Ge incorporation may be optimal for PV applications. Additionally, device simulations were conducted to evaluate the impact of Cu<sub>2</sub>ZnSn<sub>1−<i>x</i></sub>Ge<sub><i>x</i></sub>S<sub>4</sub> layer thickness on device performance, with and without a back surface field. The integration of first-principles calculations with SCAPS-1D simulations offers a comprehensive framework for predicting the performance of Cu<sub>2</sub>ZnSn<sub>1−<i>x</i></sub>Ge<sub><i>x</i></sub>S<sub>4</sub> solar cells, highlighting the potential of Ge alloying for enhancing PV efficiency.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advancements in the Realm of Structural Engineering for Sodium-Ion Batteries via Elemental Doping: A Focus on P2-Phase Nickel–Manganese Layered Oxides","authors":"Weipeng Li, Haihan Zhang, Liang Xie, Zhiyang Fan, Taifan Yang, Weibo Hua, Kang Yang, Chengyong Shu, Yongliang Ma, Yuping Wu, Wei Tang","doi":"10.1002/bte2.20240052","DOIUrl":"https://doi.org/10.1002/bte2.20240052","url":null,"abstract":"<p>In recent decades, lithium-ion batteries (LIBs) have been widely adopted for large-scale energy storage due to their long cycle life and high energy density. However, the high cost and limited natural abundance of lithium highlight the urgent need to develop alternative devices, such as sodium-ion batteries (SIBs), which utilize abundant and readily available resources. Among SIB cathode materials, P2-phase Ni–Mn materials have emerged as commercially viable candidates because of their high operating voltage, good specific capacity, excellent sodium-ion conductivity, and robust stability under environmental conditions. Nevertheless, the Jahn–Teller effect triggered by high-voltage phase transitions, Na<sup>+</sup>/vacancy ordering, and the presence of Mn<sup>3+</sup> at low voltages collectively lead to structural degradation and performance decline during cycling. By varying the macroscopic structural design and surface coating, elemental doping introduces one or more ions at the atomic scale, adjusting the valence states and reducing the band gap. This effectively alters the electronic structure and the intrinsic lattice of the cathode material, thereby accelerating reaction kinetics and yielding high-performance material characteristics. This review delves into the research advancements pertaining to tailored structural engineering strategies to address these challenges for P2-phase Ni–Mn layered oxides.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-27DOI: 10.1002/bte2.20240055
Protity Saha, Md. Zahidul Islam, Syed Shaheen Shah, M. Nasiruzzaman Shaikh, T. Maiyalagan, Md. Abdul Aziz, A. J. Saleh Ahammad
{"title":"Harnessing the Power of Marine Biomass-Derived Carbon for Electrochemical Energy Storage","authors":"Protity Saha, Md. Zahidul Islam, Syed Shaheen Shah, M. Nasiruzzaman Shaikh, T. Maiyalagan, Md. Abdul Aziz, A. J. Saleh Ahammad","doi":"10.1002/bte2.20240055","DOIUrl":"https://doi.org/10.1002/bte2.20240055","url":null,"abstract":"<p>Marine biomass presents a promising and sustainable pathway for advancing electrochemical energy storage (EES) technologies. This review provides a comprehensive, state-of-the-art examination of marine biomass-derived carbon as a high-performance electrode material for EES devices. The global abundance and distribution of marine biomass are discussed, followed by a detailed investigation into the chemical composition of various aquatic organisms. Key conventional synthesis methods for converting marine biomass into carbon are critically analyzed, emphasizing strategies to enhance electrochemical performance. Diverse applications of marine biomass-derived carbon in EES are explored, offering an in-depth evaluation of its electrochemical activity and mechanical properties in relation to structural variations. A dedicated section addresses the “Technology to Market” transition, presenting a strategic overview of the commercial potential of this material. Lastly, the review identifies current challenges and future opportunities, emphasizing the need for continued research into both structural innovations and scalable solutions to advance sustainable energy storage systems, addressing critical environmental and economic issues.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-24DOI: 10.1002/bte2.20240033
Chenxi Ye, Peiyuan Guo, Xiya Chen, Zining Zhang, Yudong Guo, Zhenjun Chen, Huakang Yang, Dongxiang Luo, Xiao Liu
{"title":"Highly Efficient and Stable Potassium-Doped g-C3N4/Zn0.5Cd0.5S Quantum Dot Heterojunction Photocatalyst for Hydrogen Evolution","authors":"Chenxi Ye, Peiyuan Guo, Xiya Chen, Zining Zhang, Yudong Guo, Zhenjun Chen, Huakang Yang, Dongxiang Luo, Xiao Liu","doi":"10.1002/bte2.20240033","DOIUrl":"https://doi.org/10.1002/bte2.20240033","url":null,"abstract":"<p>The advancement of efficient and robust photocatalysts for water splitting is pivotal for the sustainable production of clean hydrogen energy. This study introduces a novel photocatalyst, synthesized by integrating 0D Zn<sub>0.5</sub>Cd<sub>0.5</sub>S quantum dots (ZCS QDs) onto 2D K<sup>+</sup>-doped graphitic carbon nitride (K-CN) microribbons, via an in-situ hydrothermal growth method. A comprehensive characterization was performed to assess the optical characteristics, structural attributes, and charge transfer efficacy of the prepared photocatalysts. Our findings reveal that the incorporation of K<sup>+</sup> ions effectively modulates the bandgap and valence band positions of g-C<sub>3</sub>N<sub>4</sub>, facilitating an optimal energy level alignment with ZCS QDs. Moreover, the integration of ZCS QDs improves the photon capture ability and concurrently diminishes the recombination rate of photogenerated charge carriers. The optimized ZCS 51%/K-CN photocatalyst demonstrates a promising simulated sunlight-driven hydrogen production rate of 9.606 mmol·h<sup>−1</sup>·g<sup>−1</sup>, surpassing that of pristine ZCS QDs by nearly three times, without the need for noble metal co-catalysts. Most notably, the photocatalyst maintains its hydrogen evolution performance consistently over five photocatalytic cycles, underscoring its stability. The remarkable photocatalytic activity is primarily ascribed to the formation of a type-II heterojunction between K-CN and ZCS QDs, which enhances charge separation and transfer. This research represents a significant step forward in the design of heterojunction photocatalysts by merging QDs with g-C<sub>3</sub>N<sub>4</sub>, offering a highly effective and durable solution for photocatalytic hydrogen production.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-20DOI: 10.1002/bte2.20240070
Sungwoo Kim, Md Amir Sohel, Ji Chan Kim, Sung Oh Cho
{"title":"Electron-Irradiated Montmorillonite/Polyethylene Composite Separator for High-Performance Lithium-Ion Battery","authors":"Sungwoo Kim, Md Amir Sohel, Ji Chan Kim, Sung Oh Cho","doi":"10.1002/bte2.20240070","DOIUrl":"https://doi.org/10.1002/bte2.20240070","url":null,"abstract":"<p>Separators play a significant role in the safety and performance of lithium-ion batteries. In this study, composite separators were fabricated using montmorillonite (MMT) as a filler in a high-density polyethylene (HDPE) matrix, followed by electron irradiation to enhance the safety and performance of separator. Electron irradiation induces chemical bonds by crosslinking between HDPE chains, also between the MMT and HDPE. MMT features a two-dimensional layered structure with a high surface area, providing abundant crosslinking sites. MMT is treated with a silane coupling agent, which induces layer exfoliation. The exfoliation increases the surface area of MMT, thereby providing more crosslinking sites. Additionally, the surface modification of MMT enhances its affinity with HDPE, leading to better dispersion of MMT within the HDPE matrix. Simultaneously, electron irradiation in an air atmosphere generates polar functional groups, improving the electrolyte affinity of the separator. Consequently, the safety of the MMT composite separator was significantly enhanced, exhibiting a high puncture strength of 0.52 N μm<sup>−1</sup> and a thermal shrinkage rate of 21.4% at 135°C for 30 min. Li//LCO cells using the composite separator demonstrated superb cycle stability with a discharge retention of 98.7% and a coulombic efficiency of 99.6% after 200 cycles at 0.5 C, and exhibited rate capability maintaining 74.5% of the capacity at 20 C compared to 0.5 C.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Additives With Phenyl and Acid Anhydride Functional Groups on the Wide Temperature Operation Performance of LiNi0.8Co0.1Mn0.1O2||SiO/Graphite Pouch Cells","authors":"Chengyun Wang, Jin Chen, Yaowei Feng, Xiuqin Deng, Xiaoxian Pang, Hanbo Zou, Wei Yang, Shengzhou Chen, Xijun Xu","doi":"10.1002/bte2.20240042","DOIUrl":"https://doi.org/10.1002/bte2.20240042","url":null,"abstract":"<p>High-nickel LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) cathode paired with silicon-based graphite (SiO/Gr) is pivotal for enhancing the energy density of lithium-ion batteries (LIBs). However, the high reactivity of NCM811 with the electrolyte and the volumetric expansion issues associated with SiO/Gr pose significant challenges to their practical application. To settle these issues, we explore the impact of additives with phenyl and acid anhydride moieties on the performance of NCM811‖SiO/Gr pouch cells across a wide temperature range of −20°C~60°C. Acid anhydride additives are capable of diminishing the internal resistance in NCM811‖SiO/Gr pouch cells, as well as curbing gas evolution and thickness increase during the operational phase. Notably, the batteries enriched with citraconic anhydride (CAn) and succinic anhydride (SAn) additives after 120 cycles at 45°C demonstrated enhanced capacity retention from 83.2% to 88.1% and 85.5%, respectively. Intriguingly, the inclusion of phenyl-containing additives in the electrolyte was found to be advantageous for NCM811‖SiO/Gr pouch cells' low-temperature performance. Furthermore, neither type of functional group significantly enhanced performance at room conditions. Consequently, the combination of additives is necessary to fulfill the stringent requirements of LIBs for extreme environment applications. This work guides designing composite electrolytes for high energy density wide temperature operation LIBs.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-18DOI: 10.1002/bte2.20240046
Xiao Zhang, Yanhuai Ding
{"title":"Research Progress on the Application of MOF Materials in Lithium-Ion Batteries","authors":"Xiao Zhang, Yanhuai Ding","doi":"10.1002/bte2.20240046","DOIUrl":"https://doi.org/10.1002/bte2.20240046","url":null,"abstract":"<p>Lithium-ion batteries (LIBs) have established themselves as the preferred power sources for both pure electric and hybrid vehicles, attributable to their exceptional characteristics, including prolonged cycle life, elevated energy density, and minimal self-discharge rates. Metal-organic frameworks (MOFs), as innovative functional molecular crystal materials, exhibit promising application prospects in LIBs. This paper provides a comprehensive overview of the latest advancements in the synthesis techniques and structural modulation of MOFs and their derivative materials. It particularly emphasizes a thorough exploration of the utilization of MOFs and their derivatives in the anode, cathode, and separators of LIBs. Additionally, this paper delves into the current obstacles encountered by MOFs in LIB applications and offers insights into their potential future development.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Battery EnergyPub Date : 2024-12-18DOI: 10.1002/bte2.20240016
Mohammadhosein Safari
{"title":"A Perspective on the Battery Value Chain and the Future of Battery Electric Vehicles","authors":"Mohammadhosein Safari","doi":"10.1002/bte2.20240016","DOIUrl":"https://doi.org/10.1002/bte2.20240016","url":null,"abstract":"<p>Even the most conservative projections suggest that significantly higher demand for batteries in the transport sector is expected in the coming years. A relevant concern is the supply security of lithium-ion batteries, which has been raised and discussed in existing literature in the context of sustainability and the technological readiness of different parts of the battery value chain. However, an up-to-date analysis of this value chain is beneficial to spotlight the main current bottlenecks. This perspective article aims to make a worthwhile contribution in two respects: first, to encourage further research in the techno-economic aspects of lithium-ion and beyond battery chemistries; second, to aid investors and policymakers in the decision-making process paving the road for the realization of the sustainability goals in the transport sector.</p>","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}