Journal of energy storage最新文献

{"title":"Development of perovskite-FeMnO3/MWCNTs/PANI hybrid as an efficient electrode for supercapattery","authors":"Alishbah Zaka ,&nbsp;Baseerat Pervez ,&nbsp;Rimsha Liaqat ,&nbsp;Misha Aftab ,&nbsp;Yuri Park ,&nbsp;Arshid Numan ,&nbsp;Khurram Shahzad Munawar ,&nbsp;Shahid Bashir ,&nbsp;Mudassir Iqbal ,&nbsp;Muhammad Adil Mansoor","doi":"10.1016/j.est.2025.118772","DOIUrl":"10.1016/j.est.2025.118772","url":null,"abstract":"<div><div>Manganese-based mixed metal oxides are cost-effective and have a wide voltage range, making them promising for electrochemical energy storage. However, they suffer from poor electrical conductivity, structural instability during cycling, and electrolyte dissolution. Conductive polymers are often added to address these issues to improve conductivity and ion transport. However, these polymers undergo volumetric changes (shrinkage and swelling) during cycling. Incorporating carbon nanotubes (CNTs) enhances structural stability, preventing degradation and preserving electrode integrity. In this study, FeMnO₃ was synthesized via a simple hydrothermal method and combined with multiwalled carbon nanotubes (MWCNTs) and polyaniline (PANI) to form a ternary hybrid composite. The synthesized ternary hybrid was characterized using several techniques, including Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) and X-ray photoelectron spectroscopy (XPS). The electrochemical performance of the ternary hybrid as an electrode material for energy storage devices was evaluated using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The results demonstrated that the ternary hybrid achieved a high specific capacity of 1415C/g at a current density of 1 A/g, along with a low charge transfer resistance (R_ct) of 2.96 Ω, and retained 88 % of its initial capacity after 10,000 charge-discharge cycles, indicating excellent durability and performance. Moreover, the ternary hybrid showcases the specific capacity of 109.87C/g at 1 A/g in a two-electrode system with energy density (E_d) and power density (P_d) of 15.11 Wh/kg and 130.05 W/kg, respectively.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118772"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290140","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}

{"title":"Energy–exergy analysis of sinusoidal-channel thermal energy storage system for high-temperature concentrated-solar applications using air as heat transfer fluid","authors":"Caio Cezar Neves Pimenta,&nbsp;Mário Benjamim Baptista de Siqueira,&nbsp;Claudio Adasme Corvalán","doi":"10.1016/j.est.2025.118608","DOIUrl":"10.1016/j.est.2025.118608","url":null,"abstract":"<div><div>In this study, an energy–exergy analysis was performed on a thermal energy storage system (TESS) that uses air as the heat transfer fluid, flowing through a solid with a sinusoidal channels, a geometry optimized for heat transfer. Simplified energy conservation equations were proposed for the air and the solid, allowing different configurations of the TESS to be examined. The aerodynamic parameters were obtained by simulations on a full CFD platform to ensure reliable results. The model discretizes the domain into finite volumes and solves the energy equations, using the upwind scheme for the advective term and an implicit scheme in time. Temperature and mass flow were used to estimate exergy lost during the processes. Simulations of the charging, discharging and thermal-redistribution cycle were carried out for TESS under operational conditions based on real CSP plant. 3, 6 and 9-meters long TESS, with different mass flow rates were tested. The simulations revealed how geometric configuration and mass flow through channels affect destroyed and unused exergy from the absorbed solar energy. While 3-m long TESS was unable to sustain air temperature necessary to power the thermodynamic system, regardless of mass flow rate, the 9-m long with 0.035 m diameter channels and flow 0.2kg/m²s, presented best results with a total exergy loss of just over 5% of the storage capacity. However, a 6-m TESS showed a performance similar to 9-m and could be an option if compactness is valuable for the installation. Additionally, blower power is significantly influenced by the channel geometry and should therefore be carefully considered during the design of sinusoidal-channel thermal energy storage systems. Results of this study demonstrated that sinusoidal-channel porous media, could be an interesting option for high-temperature sensible-heat small storage system due to its enhanced heat transfer coefficient, low pressure loss and easy modular assembly, providing it with flexibility and cost effectiveness.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118608"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289554","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}

{"title":"Recent development of thermal heat storage technology coupling with phase change material","authors":"Qianjun Mao ,&nbsp;Yanglun Wang","doi":"10.1016/j.est.2025.118739","DOIUrl":"10.1016/j.est.2025.118739","url":null,"abstract":"<div><div>Renewable energy plays a crucial role in meeting the growing global energy demand. Among various renewable energy sources, solar energy occupies a central position due to its numerous advantages, including environmental sustainability and economic efficiency. However, one of the significant challenges in the efficient utilization of solar energy is its inherent intermittency, which can lead to imbalances between supply and demand. Thermal energy storage (TES) technology, coupled with phase change materials (PCMs), offers an effective solution by storing energy during solar energy production and releasing it when needed. This approach has a distinct advantage in addressing the periodicity of solar energy. In the context of optimizing solar energy utilization, this paper provides a comprehensive review of the current research and future developments in TES technology. The focus is on key aspects such as the selection of PCMs, fin design arrangements, the architecture of cascade storage systems, the design of thermal storage tanks, and both numerical models and experimental methods. Additionally, the paper explores potential future applications of TES, offering valuable insights into the calculation, design, operation, and energy-saving potential of these technologies in the solar energy sector.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118739"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289571","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}

{"title":"Evolution mechanism of electrochemical and thermal stability for lithium-ion batteries after vehicle service: A comparative analysis on four different batteries","authors":"Chunjing Lin ,&nbsp;Hongtao Yan ,&nbsp;Yuemeng Zhang ,&nbsp;Li Lao ,&nbsp;Yongjun Tian ,&nbsp;Chuang Qi ,&nbsp;Yazhou Sun ,&nbsp;Lei Liu","doi":"10.1016/j.est.2025.118861","DOIUrl":"10.1016/j.est.2025.118861","url":null,"abstract":"<div><div>The performance of lithium-ion batteries (LIBs) is closely linked to their operating conditions. Current studies mainly focus on how temperature and current variations affect battery performance under standard charging/discharging conditions in laboratories. However, research on real-world in-vehicle service conditions is still limited. This study compares four LIBs used in household vehicles and taxis to analyze how in-vehicle service affects LIBs' electrochemical and stability changes. The complex mechanisms behind performance changes in LIBs after in-vehicle service are revealed through multi-angle characterization analyses. After in-vehicle service, the cathode was most strongly affected. The effects primarily involve cathode electrolyte interface film thickening, transition metal dissolution, active material degradation, and increased crystal defects, ultimately leading to lattice disorder. The effects on the anode primarily include lithium plating, material detachment, cracking, and solid electrolyte interface film reduction thickness. After in-vehicle service, there was no significant change in the thermal stability observed for these four different batteries. Overall, the impact of in-vehicle service on batteries was multifaceted and does not follow a straightforward linear relationship. This study addresses the gap in understanding the impact of real-world vehicle aging on battery performance and its underlying mechanisms.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118861"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290046","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}

{"title":"Resilient planning for battery and hydrogen energy storage in power systems against extreme heatwave events","authors":"Jilei Ye ,&nbsp;Jian Song ,&nbsp;shiye Yan ,&nbsp;Hao Ma ,&nbsp;Qinhan Yang ,&nbsp;Dong Li ,&nbsp;Wenqian Yin","doi":"10.1016/j.est.2025.118850","DOIUrl":"10.1016/j.est.2025.118850","url":null,"abstract":"<div><div>Under the impacts of extreme heatwave events, the electricity demand from temperature-sensitive equipment increases, intensifying the energy balance pressure in power systems. Long-duration energy storage, such as Hydrogen energy storage, offers a promising tool by enabling transferring energy from other periods to the extreme event periods. However, estimating the hybrid energy storage configuration of power systems under heatwave events remains unresolved. This paper proposes a resilient planning model for optimizing the capacities of battery energy storage systems and hydrogen energy storage systems, aiming to achieve the optimal technical and economic operation of the power system under extreme heatwave events. The proposed planning model consists of both before-event pre-dispatch and during-event re-dispatch, such that the energy shortage during the heatwave event can be compensated by strategic discharge of hydrogen storage. Case studies with extensive conditions demonstrate the effectiveness of the proposed work in achieving optimal technical-economic efficiency. Results show that the existing thermal power units are only capable of accommodating a 9.14 % load demand increase. When load increase is less than 13.38 %, configuring only battery energy storage is capable of enhancing resilience while maintaining low costs; However, when the load increase exceeds 13.38 %, hybrid energy storage configuration becomes a cost-effective scheme.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118850"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290141","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}

{"title":"A hybrid pulse power characterization-elastic net framework for accurate state-of-health estimation in lithium-ion batteries under thermal aging conditions","authors":"Zouhir Boumous ,&nbsp;Samira Boumous ,&nbsp;Mamoun Fellah ,&nbsp;Ahlem Guesmi ,&nbsp;Lotfi Khezami","doi":"10.1016/j.est.2025.118911","DOIUrl":"10.1016/j.est.2025.118911","url":null,"abstract":"<div><div>This study presents a novel hybrid framework for accurate State-of-Health (SoH) estimation of lithium-ion batteries, critical for enhancing safety, reliability, and lifespan in electric vehicles and energy storage systems. The approach integrates an enhanced Hybrid Pulse Power Characterization (HPPC) protocol with a thermal degradation model utilizing Elastic Net regression. By extracting key electrochemical features—ohmic resistance (R₀) and polarization time constants (τ₁, τ₂)—across varying state-of-charge (SOC) levels and temperatures, the model minimizes cell stress while providing precise degradation indicators. Experimental validation on 18,650 LiFePO₄ cells over 400 cycles achieves an SoH prediction error of just 0.027 %. The framework demonstrates robustness in real-time applications, with minimal fitting errors and a strong correlation between the thermal indicator and SoH. This work introduces an effective, scalable approach for battery management systems, advancing predictive maintenance and condition monitoring.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118911"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289558","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}

{"title":"Upcycling of waste battery separators for energy storage applications","authors":"Yufeng Wu ,&nbsp;Wenlong Pang ,&nbsp;Chunyan Li ,&nbsp;Zhongxun Tian ,&nbsp;Mengyu Zhai ,&nbsp;Shaonan Tian ,&nbsp;Jun Yang","doi":"10.1016/j.est.2025.118923","DOIUrl":"10.1016/j.est.2025.118923","url":null,"abstract":"<div><div>The recycling of spent batteries has primarily focused on the recovery of cathode and anode materials, as well as electrolytes, while little attention has been paid to the reuse of battery separators. In this study, a urea-assisted pyrolysis strategy involving gradient heating and isothermal treatment was proposed to achieve efficient recycling and value-added utilization of spent battery separators. By tailoring the pyrolysis protocol, the separators were successfully converted into carbon materials with a hierarchically porous structure and a high specific surface area of up to 2083 m² g⁻¹. Electrochemical measurements revealed that the carbon electrode exhibited an excellent specific capacitance of 321.1 F g⁻¹ at a current density of 0.5 A g⁻¹, and maintained nearly unchanged capacitance after 10,000 cycles at a high rate of 3 A g⁻¹. The symmetric supercapacitor assembled from the obtained carbon material delivered an energy density of 9.1 Wh kg⁻¹ at a power density of 250 W kg⁻¹. This work not only provided a novel pathway for the resource utilization of battery separators but also offered technical support for the development of green and sustainable energy storage devices, balancing both environmental and economic benefits.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118923"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289569","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}

{"title":"Preparation of highly efficient thermal management polyurethane foam coatings based on crosslinked modified phase change microcapsules: Integration of temperature regulation, flame retardancy, and antibacterial functions","authors":"Jiashuo Sun ,&nbsp;Junwen Che ,&nbsp;Zhiqiang Zhang ,&nbsp;Yongji Wang ,&nbsp;Hong Zhang ,&nbsp;Yue Yu","doi":"10.1016/j.est.2025.118665","DOIUrl":"10.1016/j.est.2025.118665","url":null,"abstract":"<div><div>Polyurethane (PU) foam, known for its lightweight nature, cushioning, shock absorption, and sound insulation properties, is an ideal material for automotive lightweighting and safety design. However, conventional PU foam has poor heat resistance and lacks active thermal management, flame retardancy, and antibacterial properties, which limits its application in high-performance areas such as new energy vehicles. Incorporating phase change materials (PCM) is an effective strategy for achieving active temperature regulation, but developing a PCM that is both heat-resistant and damage-resistant while simultaneously providing flame retardancy and antibacterial functions remains a significant challenge. To address this issue, a semi-interpenetrating polymer network (semi-IPN) was constructed through the integration of a multilayer graphene oxide (GO) crosslinked framework with polyethylene glycol (PEG). Subsequently, silica (SiO₂) was employed as an encapsulating shell to fabricate core-shell structured GO/PEG@SiO₂ phase change microcapsules in this study. These phase change microcapsules were subsequently integrated into water-based PU foam via coating and high-temperature foaming techniques, resulting in a microcapsule-modified foam coating. Experimental results indicate that, compared to conventional PU coating, the microcapsule-modified foam coating exhibits superior temperature regulation, with a maximum temperature difference of 32.9 °C. Moreover, the composite coating retains passive insulation properties while introducing active thermal regulation, and achieves synergistic flame retardancy (V-2 rating) and antibacterial functionality. This study offers a new strategy for designing high-performance, multifunctional automotive interior materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118665"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290143","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}

{"title":"Metal-organic framework-derived N, Zn-doped carbon materials loaded with PbO for suppressing hydrogen evolution and irreversible sulfation in lead-carbon batteries","authors":"Shuting Li,&nbsp;Jianlong Xu,&nbsp;Juyun Li,&nbsp;Qiang Yu,&nbsp;Zhen Chen,&nbsp;Huixi Li","doi":"10.1016/j.est.2025.118885","DOIUrl":"10.1016/j.est.2025.118885","url":null,"abstract":"<div><div>As an emerging electrochemical energy storage battery, lead-carbon batteries (LCBs) are characterized by with high safety, low cost, and long cycle life. However, due to the LCBs under high-rate partial state of charge (HPRSoC) conditions for a long time will lead to the phenomena of hydrogen evolution reaction (HER) and irreversible sulfation at the negative electrode, which seriously affects the performance of the batteries. In this work, MOFs-derived N, Zn-doped carbon (ZNC_acid) modified with PbO (PbO@ZNC_acid) was synthesized and applied as a negative electrode additive in LCBs. The ZNC_acid substrate has microporous and mesoporous structure, which facilitates the diffusion of electrolyte. Among them, the doping of Zn can effectively suppress hydrogen evolution, while N doping will generate more defects and enhance the electronic conductivity. More importantly, the PbO particles loaded on the ZNC_acid substrate not only inhibit HER but also provide nucleation sites for PbSO₄ crystal growth while enhancing the affinity between the carbon material and the negative active material (NAM). Owing to the superior properties of the synthesized PbO@ZNC_acid material, the LCB incorporating this additive achieves a specific capacitance of 153.6 mAh·g⁻¹ — a 38.74 % increase compared to the Blank battery (110.7 mAh·g⁻¹).Under HRPSoC conditions, the cycle life of the modified-battery is 33,729 times, which is 5.68 times that of the Blank battery (5937 times). This work provides valuable references for the application of lead-carbon composites in LCBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118885"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290148","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}

{"title":"Robust and fast-ion conducting channels empowering biomass Si anode toward high energy lithium ion batteries","authors":"Xiangzhong Kong ,&nbsp;Yingjie Jiang ,&nbsp;Ziyang Xi ,&nbsp;Xinhong He ,&nbsp;Yixuan Xiang ,&nbsp;Xi Chen ,&nbsp;Lihua Wang ,&nbsp;Zhongmin Wan ,&nbsp;Anqiang Pan","doi":"10.1016/j.est.2025.118862","DOIUrl":"10.1016/j.est.2025.118862","url":null,"abstract":"<div><div>The silicon (Si) based materials with robust structural adaptability and abundant Li⁺ transportation pathway have attracted great attentions due to their enviable high capacity and long lifespan. However, the severe structural collapse and intrinsic low conductivity hinder its practical applications. In this work, the mild magnesiothermic reduction (MMR) is exploited for the scalable fabrication of spongy-like porous silicon (NC/SP-Si) using rice husk derived Mg₂Si and SiO₂ as the reductant and reactant, respectively. Benefiting from the buffering effect of MMR, the structural collapse is effectively avoided and spherical-lamellar symbiotic Si sponge is successfully constructed, resulting in fast-ion Li⁺ conducting channels and robust high mechanical flexibility. Importantly, ultrathin nitrogen doped carbon layers derived from chitosan further boost the intrinsic low conductivity of Si and prevent the undesirable interface side reactions. When utilized as anodes for lithium ion batteries, the NC/SP-Si delivers a high capacity of 1282 mAh g⁻¹ after 100 cycles at 0.1 A g⁻¹. Even at 1 A g⁻¹, the electrode delivers a capacity of 710.6 mAh g⁻¹ after 1000 cycles. The ex-situ characterizations demonstrate that the ingenious spongy Si and heteroatom doped carbon layers can effectively enhance the accommodation to volume expansion, provide multilevel fast Li⁺ conducting channels, and accelerate the formation of LiF-rich solid electrolyte interface films. Encouragingly, the assembled NCM811‖NC/SP-Si full cell shows excellent electrochemical performance after 400 cycles with a high energy density of 555.8 Wh kg⁻¹. This work reveals the significance of constructing robust multilevel Li⁺ conducting channels and regulating stable LiF-rich SEI in improving the performance of Si, which provides a new perspective for boosting the large-scale application of biomass derived Si based anodes.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118862"},"PeriodicalIF":8.9,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290159","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}