Battery Energy最新文献_第4页

Cover Image, Volume 3, Issue 3, May 2024 封面图片，第 3 卷第 3 期，2024 年 5 月

Battery Energy Pub Date : 2024-05-07 DOI: 10.1002/bte2.12184

引用次数: 0

Dual-functional and polydopamine-coated vanadium disulfide for “fast-charging” lithium-ion batteries 用于 "快速充电 "锂离子电池的双功能多巴胺涂层二硫化钒

Battery Energy Pub Date : 2024-05-07 DOI: 10.1002/bte2.20240001

Lu Wang, Hao Dang, Tianqi He, Rui Liu, Rui Wang, Fen Ran

{"title":"Dual-functional and polydopamine-coated vanadium disulfide for “fast-charging” lithium-ion batteries","authors":"Lu Wang, Hao Dang, Tianqi He, Rui Liu, Rui Wang, Fen Ran","doi":"10.1002/bte2.20240001","DOIUrl":"10.1002/bte2.20240001","url":null,"abstract":"As a typical representative of vanadium-based sulfides, vanadium disulfide has attracted the attention of researchers ascribed to its high theoretical capacity and unique crystal structure. However, overcoming its structural collapse while achieving dual functionalization that serves as both active material and binder remains challenging. This study designs a dopamine-coating vanadium disulfide core-shell structure through the synergistic effect of V-O bonds and hydrogen bonds between vanadium disulfide and dopamine, which is further employed as a dual-function electrode material. The polydopamine-coated vanadium disulfide without binder exhibits specific capacity of 682.03 mAh g−1, and the Coulombic efficiency of 99.78% at a current density of 200 mA g−1 after 400 cycles. More importantly, at a larger current density of 1000 mA g−1, the specific capacity is 385.44 mAh g−1 after 1500 cycles. After 3150 cycles, the specific capacity is 200.32 mAh g−1 at 2000 mA g−1. Electrochemical kinetics analysis displays that the polydopamine-coated vanadium disulfide without binder exhibits fast ion-diffusion kinetics, with the order of magnitude of ion-diffusion coefficients ranging from 10−11 to 10−12. This kind of material has the potential to be a significantly promising electrode material for “fast-charging” lithium-ion batteries.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141003905","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}

引用次数: 0

A finite-state machine-based control design for thermal and state-of-charge balancing of lithium iron phosphate battery using flyback converters 利用反激式转换器对磷酸铁锂电池的热平衡和充电状态平衡进行基于有限状态机的控制设计

Battery Energy Pub Date : 2024-04-30 DOI: 10.1002/bte2.20230055

Asal Zabetian-Hosseini, Amin Ghazanfari, Benoit Boulet

{"title":"A finite-state machine-based control design for thermal and state-of-charge balancing of lithium iron phosphate battery using flyback converters","authors":"Asal Zabetian-Hosseini, Amin Ghazanfari, Benoit Boulet","doi":"10.1002/bte2.20230055","DOIUrl":"https://doi.org/10.1002/bte2.20230055","url":null,"abstract":"Battery cell balancing plays a vital role in maximizing the performance of the battery system by enhancing battery system capacity and prolonging the battery system life expectancy. Active cell balancing using power converters is a promising approach to maintaining uniform state of charges (SoCs) and temperatures across battery cells. The SoC balancing function in the battery management system (BMS) increases the battery pack capacity, and the temperature balancing function mitigates variations in the aging of battery cells due to unbalanced temperatures. In this work, a finite-state machine-based control design is proposed for lithium iron phosphate (LFP) battery cells in series to balance SoCs and temperatures using flyback converters. The primary objective of this design is to ensure balanced SoCs by the end of the charging session while mitigating the temperature imbalance during the charging process. To achieve the SoC and temperature balancing functions using the same balancing circuits, a finite-state machine control design decides on the operating mode, and a balancing strategy balances either temperature or SoC depending on the operating mode. The proposed control design has the advantages of low computational burden, simple implementation compared to the optimization-based controller found in the literature, and the proposed balancing strategy offers faster balancing speed compared to conventional methods. The effectiveness of the proposed strategy is validated on battery cell RC models in series with unbalanced SoCs and temperatures.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20230055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584135","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}

引用次数: 0

K2[(VOHPO4)2(C2O4)]·2H2O as a high-potential cathode material for potassium-ion batteries 作为钾离子电池高电位阴极材料的 K2[(VOHPO4)2(C2O4)]-2H2O

Battery Energy Pub Date : 2024-04-21 DOI: 10.1002/bte2.20240006

Xiaogang Niu, Nan Li, Yifan Chen, Jianwen Zhang, Yusi Yang, Lulu Tan, Linlin Wang, Zhe Zhang, Stanislav S. Fedotov, Dmitry Aksyonov, Jianghao Wu, Lin Guo, Yujie Zhu

{"title":"K2[(VOHPO4)2(C2O4)]·2H2O as a high-potential cathode material for potassium-ion batteries","authors":"Xiaogang Niu, Nan Li, Yifan Chen, Jianwen Zhang, Yusi Yang, Lulu Tan, Linlin Wang, Zhe Zhang, Stanislav S. Fedotov, Dmitry Aksyonov, Jianghao Wu, Lin Guo, Yujie Zhu","doi":"10.1002/bte2.20240006","DOIUrl":"10.1002/bte2.20240006","url":null,"abstract":"Potassium-ion batteries (KIBs) represent a promising energy storage solution owing to the abundance of potassium resources. The efficacy of KIBs relies significantly on the electrochemical attributes of both their electrode materials and electrolytes. In the current investigation, we synthesized a layered compound K2[(VOHPO4)2(C2O4)]·2H2O via a heterogeneous nucleation approach and assessed its viability as a cathode material for KIBs. When integrated with a salt-concentrated electrolyte with oxidation stability over 6 V, the compounds exhibit a high discharge potential of 4.1 V (vs. K+/K) alongside a reversible capacity of 106.2 mAh g−1. Furthermore, there is no capacity decay after 500 cycles at 100 mA g−1. This study shows the promise of layered metal organic frameworks as high-potential materials for KIBs.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140677961","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}

引用次数: 0

Effect of ether medium in LiTFSI and LiFSI-based liquid electrolytes for lithium–sulfur batteries 用于锂硫电池的基于 LiTFSI 和 LiFSI 的液态电解质中醚介质的影响

Battery Energy Pub Date : 2024-04-08 DOI: 10.1002/bte2.20240002

Nico L. Grotkopp, Marcella Horst, Georg Garnweitner

{"title":"Effect of ether medium in LiTFSI and LiFSI-based liquid electrolytes for lithium–sulfur batteries","authors":"Nico L. Grotkopp, Marcella Horst, Georg Garnweitner","doi":"10.1002/bte2.20240002","DOIUrl":"10.1002/bte2.20240002","url":null,"abstract":"Liquid battery electrolytes are utilized in most battery systems to date as they provide improved electrode contact and ionic conductivity compared to solid electrolytes; however, they pose major challenges regarding safety. Being highly flammable, toxic, and volatile, leakage of such a liquid electrolyte is always considered a major safety risk. Hence, the improvement of liquid electrolytes remains an important goal, especially for high gravimetric energy battery systems like the lithium–sulfur battery (LSB), which is considered a suitable battery type to enable fully electric-powered aviation. Here, a study on the effects of a variation of the electrolyte media and salt was conducted to establish an inexpensive alternative liquid electrolyte system to the state-of-the-art DOL/DME electrolyte of LSB. The combination of DEGMEE and LiFSI led to the best cycling performance showing an increase in cycling stability (110 cycles at 97% Coulombic efficiency) and specific capacity (~500 mAh g−1 in the 110th cycle) at a moderately high C-rate of 0.25 C, which for our coin cell system translates to a moderate current of ~1.8 mA (~1.2 mA cm−2).","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20240002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140561632","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}

引用次数: 0

Development of an in situ polymerized artificial layer for dendrite-free and stable lithium metal batteries 为无枝晶且稳定的锂金属电池开发原位聚合人工层

Battery Energy Pub Date : 2024-04-08 DOI: 10.1002/bte2.20230070

Junquan Lai, Rui Tan, Huai Jiang, Xinjing Huang, Zhongliang Tian, Bo Hong, Mengran Wang, Jie Li

引用次数: 0

Cover Image, Volume 3, Issue 2, March 2024 封面图片，第 3 卷第 2 期，2024 年 3 月

Battery Energy Pub Date : 2024-03-24 DOI: 10.1002/bte2.12178

引用次数: 0

Research progresses on metal-organic frameworks for sodium/potassium-ion batteries 钠/钾离子电池用金属有机框架的研究进展

Battery Energy Pub Date : 2024-03-02 DOI: 10.1002/bte2.20230074

Ben-Jian Xin, Xing-Long Wu

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Recent advances in effect of crystallization dynamics process on the morphology of active layer in organic solar cells 结晶动力学过程对有机太阳能电池活性层形态影响的最新研究进展

Battery Energy Pub Date : 2024-02-28 DOI: 10.1002/bte2.20230073

Qiuju Liang, Mingzhi Duan, Xingpeng Liu, Haolei Zhu, Kaiqi Yang, Wen Zhang, Jingming Xin, Jiangang Liu

{"title":"Recent advances in effect of crystallization dynamics process on the morphology of active layer in organic solar cells","authors":"Qiuju Liang, Mingzhi Duan, Xingpeng Liu, Haolei Zhu, Kaiqi Yang, Wen Zhang, Jingming Xin, Jiangang Liu","doi":"10.1002/bte2.20230073","DOIUrl":"10.1002/bte2.20230073","url":null,"abstract":"Organic solar cells (OSCs) have received widespread attention due to their light weight, low cost, semitransparency, and ease-of-solution processing. By continuously improving materials design, active layer morphology, and device fabrication techniques, the power conversion efficiency (PCE) of OSCs have exceeded 20%. The morphology of the active layer, which includes the phase separation structure, the degree of crystallinity of molecules, and the domain sizes, plays a critically important role in the performance, which is significantly influenced by the crystallization dynamics of the donor and acceptor. Therefore, it is crucial to comprehensively understand how the dynamics impact the film structure and how to effectively employ the kinetic procedure to enhance the structure of the active layer in OSCs. In this review, the methods and principles of kinetics characterization were introduced. Afterward, the latest advancements in the control of film-forming and the post annealing process are outlined, unveiling the underlying mechanism. In conclusion, the potential and future of OSCs were anticipated and projected. Researchers may gain a comprehensive understanding of how dynamic process affects the morphology through this review, potentially enhancing the performance of OSCs.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20230073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011451","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}

引用次数: 0

Fluorine substitutions engineering of benzotriazole-based hole transport polymers toward high-performance CsPbI2Br perovskite solar cells 基于苯并三唑的空穴传输聚合物的氟置换工程，实现高性能铯铋硼过氧化物太阳能电池

Battery Energy Pub Date : 2024-02-22 DOI: 10.1002/bte2.20230065

Zheng Dai, Chen Duan, Qiang Guo, Zhibin Wang, Naizhong Jiang, Yuanjia Ding, Lei Gao, Erjun Zhou

{"title":"Fluorine substitutions engineering of benzotriazole-based hole transport polymers toward high-performance CsPbI2Br perovskite solar cells","authors":"Zheng Dai, Chen Duan, Qiang Guo, Zhibin Wang, Naizhong Jiang, Yuanjia Ding, Lei Gao, Erjun Zhou","doi":"10.1002/bte2.20230065","DOIUrl":"10.1002/bte2.20230065","url":null,"abstract":"Developing suitable hole transport materials is of utmost importance in the quest to enhance the performance of CsPbI2Br perovskite solar cells (PSCs). Among the various undoped hole transport materials (HTMs), D-π-A type polymers incorporating benzodithiophene (BDT) as the D unit and benzotriazole (BTA) as the A unit have shown promising potential. To further optimize the energy level and enhance the hole transport ability of these HTMs, we employed a fluorine substitution strategy to synthesize P-BTA-2F and P-BTA-4F based on the polymer P-BTA-0F. Subsequently, we investigated the impact of varying degrees of fluorine substitution on the properties of the polymer materials and the performance of the devices. As the number of F substitutions increases, the polymer energy level of the HTM gradually shifts downward, the face-on stacking of the HTM strengthens, the hole mobility of the HTM increases, and the rate of hole extraction and transport becomes faster. Ultimately, the CsPbI2Br PSCs based on the P-BTA-4F HTM achieve the highest power conversion efficiency (PCE) of 17.68%. Those findings demonstrate that selecting an appropriate amount of fluorine substitution is crucial for regulating the performance of polymer HTMs and improving device efficiency.","PeriodicalId":8807,"journal":{"name":"Battery Energy","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bte2.20230065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139945789","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}

引用次数: 0