Journal of Power Sources最新文献_第8页

Nitrogen and sulfur dual-enriched porous organic polymer for superior-performing supercapacitors 高性能超级电容器用氮硫双富集多孔有机聚合物

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237224

Lirong Xu , Ruiping Li , Yuqing Feng, Yanan Zhang, Shina Yan, Xin Meng

{"title":"Nitrogen and sulfur dual-enriched porous organic polymer for superior-performing supercapacitors","authors":"Lirong Xu , Ruiping Li , Yuqing Feng, Yanan Zhang, Shina Yan, Xin Meng","doi":"10.1016/j.jpowsour.2025.237224","DOIUrl":"10.1016/j.jpowsour.2025.237224","url":null,"abstract":"<div><div>Porous organic polymers (POPs) offer intriguing options for applications in energy devices, including supercapacitors. Here, we present the synthesis of POP<sub>APTZ-TPDA</sub>, a dual-enriched polymer featuring redox-active triazine-nitrogen and thiophene-sulfur. It is achieved through Schiff-base coupling between 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (APTZ) and 2,5-thiphenedialdehyde (TPDA) under ambient conditions. POP<sub>APTZ-TPDA</sub>, featuring nitrogen and sulfur units, facilitates rapid charge transport and exhibits reversible electrochemical processes, leading to outstanding faradaic energy storage. The performance of POP<sub>APTZ-TPDA</sub> is evaluated within a three-electrode system. It reveals a specific capacitance of 251.4 F g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup>. After undergoing 9900 cycles, it demonstrates a capacitance retention rate of 88.5 %. This performance surpasses that of POP<sub>APTZ-PA</sub>, which contains only triazine-nitrogen. Furthermore, by employing POP<sub>APTZ-TPDA</sub> as the positive-electrode material, an asymmetric supercapacitor system is assembled. It exhibits an energy density of 86.7 W h kg<sup>−1</sup> at 0.2 A g<sup>−1</sup> and a power density of 1639.3 W kg<sup>−1</sup> at 2 A g<sup>−1</sup>, outperforming the performance of a device based on POP<sub>APTZ-PA</sub>. Our research offers valuable perspectives on the formulation and creation of redox-active POPs enriched with both nitrogen and sulfur, contributing to the advancement of superior supercapacitors.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237224"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the influence of calendering and coating line conditions on the microstructure of cathode electrode in lithium-ion batteries: Ultrasonic testing insights 探索压延和镀膜线条件对锂离子电池阴极电极微观结构的影响：超声检测见解

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237111

Erdogan Guk, Mona Faraji Niri, Hamidreza Farhadi Tolie, Matthew Capener, Philip Bellchambers, James Marco

{"title":"Exploring the influence of calendering and coating line conditions on the microstructure of cathode electrode in lithium-ion batteries: Ultrasonic testing insights","authors":"Erdogan Guk, Mona Faraji Niri, Hamidreza Farhadi Tolie, Matthew Capener, Philip Bellchambers, James Marco","doi":"10.1016/j.jpowsour.2025.237111","DOIUrl":"10.1016/j.jpowsour.2025.237111","url":null,"abstract":"<div><div>Lithium-ion batteries require high-density, uniform cathodes for efficient energy storage and manufacturing with minimal waste. Ensuring consistent cathode quality during manufacturing while avoiding the production line-related wastes remains as critical obstacle. Non-destructive diagnostic methods are vital for detecting inconsistencies and understanding parameter impacts during production. Ultrasonic testing (UT) offers precise insights into microstructure and its correlation with parameters such as line speed, coat weight and calendering.</div><div>This study leverages UT to investigate the impact of key parameters including coat weight (141, 182, and 218 gsm), line speed (0.5 and 1 m/min), and roll gap (432, 477, and 522 μm)—on cathode microstructural properties. The results show that high coat weights lead to longer time of flight (ToF, μs) and reduced amplitude (a.u.), indicating increased internal attenuation, higher coat weights, such as 218 gsm, exhibited a 12 % increase in ToF and 15 % decrease in amplitude, reflecting greater compaction and reduced porosity. Slower line speed (0.5 m/min) led to faster ToF and higher amplitude, reflecting improved material uniformity due to extended processing time. Smaller roll gaps during calendering enhanced consistency, faster ToF, and increased amplitudes across multiple locations, signifying improving compactness and structural uniformity.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237111"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of an extended single particle model incorporating electrolyte kinetics, temperature effects, and side reactions for improved battery performance simulation under high charge/discharge rates and low-temperature 结合电解质动力学、温度效应和副反应的扩展单粒子模型的研究，以改善电池在高充放电率和低温下的性能模拟

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237228

Yuan Li , Jingxuan Nie , Zhian Xue , Jing-yan Bai , Qing'an Li

{"title":"Investigation of an extended single particle model incorporating electrolyte kinetics, temperature effects, and side reactions for improved battery performance simulation under high charge/discharge rates and low-temperature","authors":"Yuan Li , Jingxuan Nie , Zhian Xue , Jing-yan Bai , Qing'an Li","doi":"10.1016/j.jpowsour.2025.237228","DOIUrl":"10.1016/j.jpowsour.2025.237228","url":null,"abstract":"<div><div>The reduction in the maximum energy stored in lithium-ion batteries due to side reactions remains a significant challenge for practical applications. Traditional models, such as the Doyle-Fuller-Newman (DFN) and Single Particle Model (SPM), are essential for understanding and predicting these side reactions but suffer from high computational costs or insufficient accuracy under high charge/discharge conditions. In this study, we present an extended Single Particle Model (SPM) that incorporates electrolyte kinetics and temperature effects, which we call the Extended Single Particle Model with Temperature effects (ESPM-T). Furthermore, we integrate solid electrolyte interphase (SEI) and lithium plating side reactions into the ESPM-T model, resulting in the Extended Single Particle Model with Temperature effects and Side Reactions (ESPM-T + SR). The ESPM-T + SR model demonstrates a 20 % improvement in computational efficiency over the DFN + SR model, with an error margin of less than 5 % for high charging rates above 1C. This model offers significant practical advantages for battery performance simulation and can be easily extended to address other degradation mechanisms.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237228"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced fault detection in lithium-ion battery energy storage systems via transfer learning-based conditional GAN under limited data 基于迁移学习的条件GAN在有限数据下增强锂离子电池储能系统故障检测

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237192

Zhipeng Yang , Yuhao Pan , Wenchao Liu , Jinhao Meng , Zhengxiang Song

{"title":"Enhanced fault detection in lithium-ion battery energy storage systems via transfer learning-based conditional GAN under limited data","authors":"Zhipeng Yang , Yuhao Pan , Wenchao Liu , Jinhao Meng , Zhengxiang Song","doi":"10.1016/j.jpowsour.2025.237192","DOIUrl":"10.1016/j.jpowsour.2025.237192","url":null,"abstract":"<div><div>The accuracy of fault detection in large-scale lithium-ion battery-based energy storage system is limited due to the scarce and low-quality fault dataset. This study proposes a data augmentation technique integrating transfer learning with a conditional generative adversarial network (TL-cGAN) to generate high-quality synthetic fault dataset, thereby enhancing fault diagnosis performance. By embedding fault information as a condition during retraining, this approach enhances the dataset across different fault scenarios. Moreover, the proposed conditional inverse normalization dynamically adjusts normalization parameters based on fault conditions, ensuring physical plausibility. It also refines the kernel density estimation distribution of the generated dataset, thereby preserving key fault signatures. A robust evaluation framework validates the proposed method across static, dynamic, and practical dimensions. Experimental results show that TL-cGAN reduces KL divergence by up to 90 % in key fault types and significantly enhances recall and F1-score in few-shot and low-visibility fault detection tasks, confirming the effectiveness of the method under data-limited conditions.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237192"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study on the venting and diffusion patterns of flammable gases during thermal runaway in LiFePO4 battery packs for energy storage stations 储能站磷酸铁锂电池组热失控过程中可燃性气体排放与扩散规律的实验研究

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237200

Peiben Wang , Lishuo Liu , Chengshan Xu , Yu Wang , Hongni Huang , Jingru Huang , Mengqi Zhang , Fachao Jiang , Xuning Feng , Minggao Ouyang

{"title":"Experimental study on the venting and diffusion patterns of flammable gases during thermal runaway in LiFePO4 battery packs for energy storage stations","authors":"Peiben Wang , Lishuo Liu , Chengshan Xu , Yu Wang , Hongni Huang , Jingru Huang , Mengqi Zhang , Fachao Jiang , Xuning Feng , Minggao Ouyang","doi":"10.1016/j.jpowsour.2025.237200","DOIUrl":"10.1016/j.jpowsour.2025.237200","url":null,"abstract":"<div><div>Energy storage stations are critical infrastructure, with battery packs serving as their core components. However, these packs pose significant safety risks due to the combustion of flammable gases during thermal runaway. Unlike single batteries, gas pressure relief in battery packs is regulated by pressure balance valves, leading to complex pressure fluctuations that complicate gas diffusion and create challenges for fire safety protection. This study conducts three gas production tests during the thermal runaway of 280Ah energy storage batteries, obtaining reliable data on gas composition. Additionally, experiments on gas pressure relief and diffusion in battery packs are performed, revealing the characteristics of pressure fluctuations and the processes of gas propagation. The results indicate that the primary gases ejected during thermal runaway of 280Ah LiFePO4 batteries are H<sub>2</sub> (55.22 %), CO<sub>2</sub> (23.17 %), and CO (7.97 %), with a single cell releasing 6.6301 mol of gas. In the battery pack experiments, the pressure balance valve opens 36 times during the thermal runaway of two batteries, with 72.2 % of the pressure relief events occurring at a rate of 0.0–0.5 kPa/s. The four corners of the pack are identified as critical sites for gas concentration, necessitating enhanced electrical safety protection measures.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237200"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metallic Co and FeNi alloy hybrid nanoparticles immobilized into N-doped graphene-like carbon nanosheets as an efficient bifunctional oxygen electrocatalyst for rechargeable Zn-air batteries 金属Co和FeNi合金杂化纳米颗粒固定在n掺杂类石墨烯碳纳米片上，作为可充电锌空气电池的高效双功能氧电催化剂

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237211

Qian Tang , Xiangni Liu , Duanguang Yang , Hongbiao Chen , Bei Liu , Mei Yang , Yijiang Liu , Huaming Li

{"title":"Metallic Co and FeNi alloy hybrid nanoparticles immobilized into N-doped graphene-like carbon nanosheets as an efficient bifunctional oxygen electrocatalyst for rechargeable Zn-air batteries","authors":"Qian Tang , Xiangni Liu , Duanguang Yang , Hongbiao Chen , Bei Liu , Mei Yang , Yijiang Liu , Huaming Li","doi":"10.1016/j.jpowsour.2025.237211","DOIUrl":"10.1016/j.jpowsour.2025.237211","url":null,"abstract":"<div><div>The development of efficient, low-cost and durable bifunctional oxygen electrocatalysts becomes a top priority for large-scale application of rechargeable Zn-air batteries (ZABs). Herein, we report the construction of durable and efficient bifunctional oxygen electrocatalyst by immobilizing metallic Co and FeNi alloy hybrid nanoparticles into N-doped, graphene-like carbon nanosheets (denoted as FeNi/Co-NCG) for rechargeable ZABs. Specifically, the N-enriched Schiff base-Co<sup>2+</sup> coordination polymer (denoted as TP-Co) is first synthesized by Co<sup>2+</sup>-induced Schiff base reaction of 2,4,6-tris(4-aminophenylmethylamino)-1,3,5-triazine and picolinaldehyde, which is then mixed with the solvothermally generated melamine/Fe<sup>3+</sup>/Ni<sup>2+</sup> complex followed by a two-step pyrolysis, yielding the FeNi/Co-NCG electrocatalyst. The resultant FeNi/Co-NCG electrocatalyst manifests not only the high bifunctional activity, i.e., a small potential gap (Δ<em>E</em> = 0.71 V) between <em>E</em><sub>j=10</sub> (1.57 V, oxygen evolution reaction (OER) potential at a current density (<em>j</em>) of 10 mA cm<strong><sup>−2</sup></strong>) and <em>E</em><sub>1/2</sub> (0.86 V, oxygen reduction reaction (ORR) half-wave potential) in 0.1 M KOH solution, but also the excellent durability. Accordingly, aqueous and solid-state rechargeable ZABs assembled with the FeNi/Co-NCG air cathode display ultralong cycle life, i.e., 1393 h at 20 mA cm<strong><sup>−2</sup></strong> for the aqueous rechargeable ZAB, and 120 h at 2 mA cm<strong><sup>−2</sup></strong> and 70 h at 5 mA cm<strong><sup>−2</sup></strong> for the solid-state rechargeable ZAB.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237211"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the oxygen reduction reaction performance of high Pt load catalyst supported on carbon black modified by conductive polymer polyethylene dioxythiophene in proton exchange membrane fuel cells 导电聚合物聚乙烯二氧噻吩改性炭黑负载高铂负载催化剂在质子交换膜燃料电池中的氧还原反应性能研究

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-30 DOI: 10.1016/j.jpowsour.2025.237201

Fanghui Wang, Yinlei Li, Yitong Dou, Hong Zhu

{"title":"Study on the oxygen reduction reaction performance of high Pt load catalyst supported on carbon black modified by conductive polymer polyethylene dioxythiophene in proton exchange membrane fuel cells","authors":"Fanghui Wang, Yinlei Li, Yitong Dou, Hong Zhu","doi":"10.1016/j.jpowsour.2025.237201","DOIUrl":"10.1016/j.jpowsour.2025.237201","url":null,"abstract":"<div><div>In situ polymerization of ethylene dioxythiophene (EDOT) on Keqin Black EC-300 J (CB) to obtain a support (PEDOT@C) with polyethylene dioxythiophene coating on CB. By coating PEDOT on CB, the structural characteristics and surface functionalization degree of CB can be optimized. Then, highly dispersed Pt nanoparticles (NPs, 3–5 nm) was prepared by reducing chloroplatinic acid using an improved sodium borohydride reduction method and loaded onto PEDOT@C to obtain a high loading amount of 40 wt% Pt/PEDOT@C catalyst. The optimization of PEDOT@C structure can strengthen the dispersion of Pt NPs, increase the exposed active sites, thus improve the Electrochemical Active Surface area (ECSA) of Pt/PEDOT@C catalyst (reaching 114.28 m<sup>2</sup>/g), which is 127.5 % and 60.01 % higher than that of JM Pt/C and Pt/CB, respectively. Meanwhile, the Mass activity (MA) of Pt/PEDOT@C catalyst is 0.142 A/mg Pt, which is 38 % and 0.7 % higher than JM Pt/C and Pt/CB, respectively. The stability of Pt/PEDOT@C catalyst is also significantly improved. After accelerated testing, the ECSA loss is 8.33 %, much lower than the 17.33 % and 19.4 % of JM Pt/C and Pt/CB, respectively; the loss of MA is 9.8 %, much lower than the 41.7 % and 18.4 % of JM Pt/C and Pt/CB, respectively. The Pt/PEDOT@C catalyst also has the highest power density (1470 mW/cm<sup>2</sup>), indicating that the PEDOT modification strategy helps to improve the catalytic performance of the catalyst. The results of this study will promote the development of PEMFCs power sources.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237201"},"PeriodicalIF":8.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The core-shell structure of bacteria based C@Sn/Carbon nanotubes exhibits super stable cycling performance for lithium-ion battery anodes 细菌基C@Sn/碳纳米管的核壳结构具有超稳定的锂离子电池负极循环性能

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-29 DOI: 10.1016/j.jpowsour.2025.237215

Feng Li , Putao Han , Jun Zhou , Yuhua Yang

{"title":"The core-shell structure of bacteria based C@Sn/Carbon nanotubes exhibits super stable cycling performance for lithium-ion battery anodes","authors":"Feng Li , Putao Han , Jun Zhou , Yuhua Yang","doi":"10.1016/j.jpowsour.2025.237215","DOIUrl":"10.1016/j.jpowsour.2025.237215","url":null,"abstract":"<div><div>Tin-based materials are recognized as a promising anode for lithium-ion batteries due to their high theoretical capacity, abundant reserves in nature, and suitable low discharge potential. However, their practical application has been hindered by rapid capacity fading during cycling, which is primarily caused by pulverization during severe volume changes. To extend the lifespan of Tin-based anodes, it is essential to mitigate the significant volume alteration associated with the insertion and extraction of lithium ions. In this work, we engineer successfully a simple core-shell structure where Tin-based components are only encapsulated within bacterial cells and compounded with carbon nanofibers (Sn@C/CNT). The bacterial exterior carbon-shells preserve effectively the structural stability of the Sn nanoparticles, suppress their aggregation, and buffer their volume expansion. Additionally, the carbon nanofiber network on the surface, characterized by high electrical conductivity and excellent mechanical flexibility, securely anchor the core-shell structure. This design enhances significantly the electrical conductivity and structural integrity of the overall electrode. When utilized as an anode in lithium-ion batteries, Sn@C/CNT exhibits an outstanding cycling stability and excellent reversible capacity of 798.77 mA h g<sup>−1</sup> at 10th cycle, and 736.31 mA h g<sup>−1</sup> even after 150 cycles at a current density of 100 mA g<sup>−1</sup>.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237215"},"PeriodicalIF":8.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on collaborative energy management strategy for extended range electric vehicles under multi-lane scenarios 多车道下增程电动汽车协同能量管理策略研究

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-29 DOI: 10.1016/j.jpowsour.2025.237193

Yuxin Zhang , Yalian Yang , Yunge Zou

{"title":"Research on collaborative energy management strategy for extended range electric vehicles under multi-lane scenarios","authors":"Yuxin Zhang , Yalian Yang , Yunge Zou","doi":"10.1016/j.jpowsour.2025.237193","DOIUrl":"10.1016/j.jpowsour.2025.237193","url":null,"abstract":"<div><div>Eco-driving strategies can significantly enhance the energy-saving potential of Extended-range electric vehicles (EREVs). However, current research on eco-driving is predominantly focused on speed planning and powertrain co-control in single-lane scenarios, overlooking the significance of vehicle lane-changing behaviors on commuting efficiency and energy consumption optimization. Therefore, this paper proposes a multi-lane efficient hierarchical co-optimization control strategy based on Model Predictive Control (MPC). In the upper layer, a Gated Recurrent Unit (GRU) neural network is employed to realize multi-lane speed prediction, and a Multilayer Perceptron (MLP) neural network is jointed to construct an energy consumption assessment model, determining the energy-efficient driving lane trajectory. In the lower-layer, the Rapid Dynamic Planning (Rapid DP) algorithm is used to optimize power allocation between the engine and driving motor in the Charge-Sustaining Mode (CS), and the commuting efficiency and energy-saving effect are analyzed under high-speed and urban driving cycles. The simulation results show that the strategy considering lane changing reduces fuel consumption by 11.79 % in the high-speed driving scenario and 22.73 % in the urban traffic scenario, and improves the commuting efficiency by 13.21 % compared to the strategy not considering lane changing. This study provides an innovative solution to improve vehicle fuel economy and urban transportation efficiency.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237193"},"PeriodicalIF":8.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Brominated phosphoric acid tri-p-cresyl ester modified single-crystalline LiNi0.8Co0.1Mn0.1O2 toward enhanced cycling performance 溴化磷酸三对甲酚酯改性单晶LiNi0.8Co0.1Mn0.1O2以增强循环性能

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-04-29 DOI: 10.1016/j.jpowsour.2025.237183

Zhen Chen , Cheng Li , Yating Yu , Youzhi Xu , Minghua Chen

{"title":"Brominated phosphoric acid tri-p-cresyl ester modified single-crystalline LiNi0.8Co0.1Mn0.1O2 toward enhanced cycling performance","authors":"Zhen Chen , Cheng Li , Yating Yu , Youzhi Xu , Minghua Chen","doi":"10.1016/j.jpowsour.2025.237183","DOIUrl":"10.1016/j.jpowsour.2025.237183","url":null,"abstract":"<div><div>High reactivity between single-crystalline high-nickel LiNi<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>O<sub>2</sub> cathode materials (Ni-rich SC-NCM) and the electrolyte is considered to be the main cause of fast capacity decay. To prevent direct their direct contact, we utilized a wet coating process to uniformly coat the surface of SC-NCM811 with a layer of brominated phosphoric acid tri-p-cresyl ester (Br-TCP) approximately 6 nm in thickness. X-ray photoelectron spectroscopy analysis of a cycled SC-NCM811 electrode indicates that the Br-TCP coating layer not only plays a key role in reducing interfacial side reactions, but also generates LiBr, a Li-ion conductor, due to reactions with surface lithium sources. The presence of LiBr in the coating layer enhances the lithium-ion dynamics and reduces the impact of coating layer on the lithium-ion diffusion within SC-NCM811. Additionally, the strong ionic bonds of LiBr enable enhanced adhesion between Br-TCP coating layer and SC-NCM811, thereby achieving lasting protection effect. Consequently, the synergistic effects provided by the Br-TCP modification layer are beneficial to delivering excellent electrochemical performance. Specifically, the capacity retention ratio is improved from 8.95 % to 55.28 % over 400 cycles at 1 C. We believe the strategy developed herein can provide valuable guidance in designing advanced surface modified cathodes for high-performance lithium (-ion) batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"645 ","pages":"Article 237183"},"PeriodicalIF":8.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0