Journal of Power Sources最新文献

{"title":"Synergistic NiCo2S4/graphene quantum dot nanosheets for superior electrochemical performance in asymmetric supercapacitors","authors":"Nandarapu Purushotham Reddy ,&nbsp;Ramavath Janraj Naik ,&nbsp;B. Purusottam Reddy ,&nbsp;Chang-Hoi Ahn ,&nbsp;Radhalayam Dhanalakshmi ,&nbsp;Si-Hyun Park","doi":"10.1016/j.jpowsour.2025.238542","DOIUrl":"10.1016/j.jpowsour.2025.238542","url":null,"abstract":"<div><div>Nanostructured materials with diversified morphologies have proven their uniqueness in electrochemical energy storage by enhancing the charge storage performance. In particular, transition metal sulfides, known for their rich redox reactions, are extensively explored as promising electrode materials for next-generation supercapacitors. However, severe aggregation often restricts ion-accessible electroactive sites, leading to a decline in capacitance. To address this challenge, the present study synthesizes NiCo₂S₄(NCS)@GQDs-x composite nanosheet (NS) structures by integrating GQDs with NCS via hydrothermal method. The hierarchical nanosheet structures of NCS@GQDs-x provide abundant active sites and promote fast electron transfer due to the synergistic effect between GQDs and NCS. Among the synthesized nanocomposites, NCS@GQDs-7 exhibited superior capacitive performance (1577 F g⁻¹ @ 0.5 A g⁻¹) owing to its uniformly distributed nanosheet-like morphology, excellent conductivity, and efficient electron and ion-transport pathways. Furthermore, the assembled asymmetric supercapacitor (ASC) device achieves an excellent energy density of 29.25 Wh/kg at a power density of 402 W/kg, with outstanding capacitance retention of 91.5 % even after 10000 charge-discharge cycles. The remarkable electrochemical properties of the NCS@GQDs-7 electrode may testify to one of the potential candidates in capacitive science for the development of next-generation high-performance supercapacitors.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238542"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218773","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 novel triple gradient three-dimensional porous current collector for stable lithium metal anodes","authors":"Liang Gong ,&nbsp;Xueling Hu ,&nbsp;Huijue Luo ,&nbsp;Yan Su ,&nbsp;Zejun Jiang ,&nbsp;Yanfang Wang ,&nbsp;Fangping Wang ,&nbsp;Zongkang Sun ,&nbsp;Jiequn Liu ,&nbsp;Shibao Tang ,&nbsp;Zhengfang Tang ,&nbsp;Xiangbing Cai ,&nbsp;Shengkui Zhong","doi":"10.1016/j.jpowsour.2025.238534","DOIUrl":"10.1016/j.jpowsour.2025.238534","url":null,"abstract":"<div><div>Uncontrolled lithium dendrite growth on lithium metal anodes can lead to serious safety hazards and performance degradation, especially during high-rate operation, which severely restricts its practical application in lithium-based batteries. The present authors design a novel triple gradient three-dimensional (3D) porous current collector, which is lithiophilicity and has high specific surface area and electrolyte wettability. It regulates the lithium deposition behavior, causing it to grow in a bottom-up model, and promotes the formation of dense solid electrolyte interface (SEI) of LiF-rich, leading to the suppression the growth of lithium dendrites and improvement of the stable battery cycling significantly. The symmetric cell for this novel current collector enables dendrite-free lithium deposition with ultralow polarization (about 6 mV) over 2850 h. The full cell paired with high loading LiNi_0.8Co_0.1Mn_0.1O₂ cathodes (11.5 mg cm⁻²) delivers 150 mAh g⁻¹ after 210 cycles at 5 C. The design for the triple gradient current collector integrates lithiophilicity, porosity, and interfacial dynamics optimization, which providing the universal strategy for lithium metal anodes of high capacity and fast charging capability.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238534"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218514","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 ion transport and deposition behavior during electrolysis process","authors":"Qingshan Wang ,&nbsp;Haitao Yang ,&nbsp;Guocai Tian ,&nbsp;Guohui Fu ,&nbsp;Qianfeng Wu ,&nbsp;Hui Zhi","doi":"10.1016/j.jpowsour.2025.238532","DOIUrl":"10.1016/j.jpowsour.2025.238532","url":null,"abstract":"<div><div>The migration and deposition behavior of ions is a critical step in the electrolytic deposition process and plays an important role in determining the mass transfer rate, crystal size, morphology and purity. Understanding the migration and deposition behavior of ions is therefore important to achieve controllability of desired electrodeposited products. In this paper, we first outline the relevant theoretical foundations, including mass transfer, boundary layer, and double electric layer theories. Subsequently, we summarize recent research advances in ion diffusion, convection, electromigration, and inter-ion and ion-solvent interactions, and discuss the mechanisms of crystal formation, growth, and dendrite inhibition. Finally, the effects of ion migration and deposition behavior on deposition quality are analyzed, and challenges, opportunities and future research directions in this field are discussed. This study provides an important reference for optimizing the electrolytic deposition process and developing high-performance electrodeposited materials.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238532"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218595","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":"Enhanced energy storage properties of Cd-doped (Pb, La)(Sn, Zr, Ti)O3 ceramics for pulsed power capacitors","authors":"Muhammad Nasir Rafiq ,&nbsp;Zhonghua Dai ,&nbsp;Yuanyuan Zheng ,&nbsp;Xujun Li ,&nbsp;Chenxi Liu ,&nbsp;Xin Zhao ,&nbsp;Yu Cong ,&nbsp;Shuitao Gu","doi":"10.1016/j.jpowsour.2025.238563","DOIUrl":"10.1016/j.jpowsour.2025.238563","url":null,"abstract":"<div><div>Lead-based ceramics with high energy storage and electrical capabilities are developed as high-performance materials for pulsed power systems. The (Pb, Cd, La)(Zr, Sn, Ti)O₃ (PCLZST) anti-ferroelectric ceramics attract significant attention as energy storage materials. In this work, ceramics (Pb_{0.97-<em>x</em>} Cd_<em>x</em> La_0.02)(Zr_0.93Sn_0.05Ti_0.02)O₃ (<em>x</em> = 0.01, 0.015, 0.02 and 0.025) have been prepared using a solid-state method, and their dielectric and energy storage characteristics are investigated. The results indicate that Cd²⁺ doping at the A-site effectively suppresses grain growth, leading to a minimum average grain size of 1.24 μm in PCLZST ceramics. The PCLZST ceramics exhibit orthorhombic phases and high relaxation factors, confirming their excellent antiferroelectric nature. Notably, the energy storage density of PCLZST ceramics is 10.09 J/cm³, the recoverable energy storage density is 7.79 J/cm³, and the discharge time is 0.102 μs reflecting optimal comprehensive performance. These findings emphasize the efficacy of Cd-doped PLZST ceramics in advanced energy storage and pulse power systems, underscoring their potential to drive future technological advancements.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238563"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218581","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":"Polyvinylidene fluoride/barium titanate composites with separation structure for improved energy storage density at a low field strength","authors":"Junhang Tang ,&nbsp;Ran Wang ,&nbsp;Yuqi Shi ,&nbsp;Zepeng Mao ,&nbsp;Jun Zhang","doi":"10.1016/j.jpowsour.2025.238564","DOIUrl":"10.1016/j.jpowsour.2025.238564","url":null,"abstract":"<div><div>Polymer-based dielectric composites exhibit substantial potential for utilization in electrostatic energy storage. Through structural design, controlling the spatial distribution of functional fillers within a polymer matrix can effectively enhance the dielectric constant (<em>ε</em>′) and polarization of composites. In this study, the innovative application of a 3D separation structure, prepared through water vapor induced phase separation combined with hot-pressing technique, achieves a significant enhancement of polarization performance at relatively low electric fields in polyvinylidene fluoride/barium titanate (PVDF/BT) dielectric composites. The continuous distribution of BT in PVDF matrix effectively enhances the local electric field and helps to achieve consistent polarization direction and remarkable dipole moment enhancement. Consequently, the <em>ε</em>′, maximum electrical displacement (<em>D</em>_max), and discharge energy density (<em>U</em>_d) of PVDF/BT are effectively enhanced. The addition of 10 vol% BT results in PVDF/BT composites exhibiting a <em>ε</em>′ exceeding 20 (10³ Hz) and a <em>D</em>_max of 9 μC/cm² (180 MV/m). The <em>U</em>_d of PVDF/BT with 10 vol% BT added is 5.08 J/cm³ (at 180 MV/m), representing a 52.1 % growth in comparison to pure PVDF (3.34 J/cm³, 180 MV/m), and exceeding 2.5 times that of biaxially oriented polypropylene (2 J/cm³, &gt;600 MV/m).</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238564"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218672","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":"High precision modeling and targeted thermal management for lithium-ion batteries using array technique","authors":"Zhihua Li ,&nbsp;Yanan Wang ,&nbsp;Xin Sun ,&nbsp;Lujiang Wang ,&nbsp;Chengming Li ,&nbsp;Zhijie Cheng ,&nbsp;Shangsheng Wang","doi":"10.1016/j.jpowsour.2025.238557","DOIUrl":"10.1016/j.jpowsour.2025.238557","url":null,"abstract":"<div><div>Lithium-ion batteries tend to generate a considerable amount of heat during operation, which presents a serious challenge to both their life and safety. A detailed comprehension of the heat production distribution and temperature distribution within the battery is necessary for effective thermal management to realize precise temperature control. However, in order to reduce the computational effort, most of the commonly used modeling methods to acquire the thermal characteristics of batteries are simplified to different extents, thereby inevitably compromising the computational accuracy. To this end, this paper presents a high-precision modeling method for lithium-ion batteries using array technique. This method employs an innovative array technique to achieve complete three-dimensional coupling of the electrochemical field and the thermal field at the battery unit level. It allows the precise determination of the current density distributions, heat production rate distributions and temperature distributions of all stacked battery units in the battery cell, as well as their variations with time, while maintaining superior computational efficiency. The modeling process is described in detail using a commercial lithium-ion battery, and the accuracy and validity of the model are verified through experiments. Taking the charging process as an example, the electrochemical and thermal characteristics of the battery unit and the battery cell are analyzed and discussed in detail. Based on this modeling method, a strategy of partitioning the battery and accurately applying targeted heat sources is further proposed. Using thermal inhomogeneity to resist overpotential inhomogeneity, this strategy greatly improves the lithium precipitation uniformity and reduces the lithium precipitation degree in the battery during the fast charging process. Therefore, the lithium precipitation phenomenon could be significantly suppressed, and the battery life and safety can be remarkably improved.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238557"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218711","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":"Fabrication of dual-phase MoO3-MoO2@N-doped carbon nanopetal spheres to achieve quick ion transport for Li/Na storage","authors":"Nabilah Al-Ansi ,&nbsp;Abdulwahab Salah ,&nbsp;Xin Ji ,&nbsp;Qasem Ahmed Drmosh ,&nbsp;Xin-Yao Huang ,&nbsp;Hai-Zhu Sun","doi":"10.1016/j.jpowsour.2025.238527","DOIUrl":"10.1016/j.jpowsour.2025.238527","url":null,"abstract":"<div><div>The development of cost-effective anode materials with high capacity and long-term stability is crucial for advancing lithium-ion (LIBs) and sodium-ion batteries (SIBs). In this work, we introduce a dual-phase molybdenum trioxide–molybdenum dioxide nitrogen-doped carbon (MoO₃-MoO₂@NC) nanopetal composite, synthesized via a one-step hydrothermal process and calcination at 400 °C. This heterostructure combines the high theoretical capacity of MoO₃ with the superior conductivity and structural durability of MoO₂, while NC enhances electron transport and mechanical stability. The MoO₃-MoO₂ interface promotes fast redox kinetics and ion diffusion, leading to exceptional electrochemical performance. The composite achieves 1652.1 mAh g⁻¹ at 500 mA g⁻¹ after 700 cycles in LIBs and retains 737.5 mAh g⁻¹ at 1000 mA g⁻¹ over 2000 cycles, surpassing conventional Mo-based anodes. In SIBs, it maintains 313 mAh g⁻¹ after 900 cycles at 500 mA g⁻¹, demonstrating excellent stability. In full-cell (LIBs/SIBs) configurations, it delivers good stability, proving its real-world applicability. The integration of dual-phase engineering, pseudocapacitive charge storage, and tailored nanostructure establishes MoO₃-MoO₂@NC as a promising anode for next-generation energy storage systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238527"},"PeriodicalIF":7.9,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218715","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":"Lattice engineering of Zn-doped Na3V2(PO4)2F3 for high-rate, wide-temperature sodium-ion batteries","authors":"Ramon Alberto Paredes Camacho ,&nbsp;Yiming Zhao ,&nbsp;Xinyu Wang ,&nbsp;Qiang Wang ,&nbsp;Lei Shen ,&nbsp;Jianmin Gu ,&nbsp;Mingxia Gao ,&nbsp;Li Lu","doi":"10.1016/j.jpowsour.2025.238519","DOIUrl":"10.1016/j.jpowsour.2025.238519","url":null,"abstract":"<div><div>Zinc-doped Na₃V₂(PO₄)₂F₃ emerges as a promising high-performance cathode material for sodium-ion batteries. In this work, we highlight the critical role of lattice fine-tuning, which was often overlooked in favor of improving electronic conductivity, as a key factor in enhancing sodium-ion mobility and ensuring long-term structural stability. This insight introduces a new design paradigm for robust cathode materials that can operate at high rates across a wide temperature range. Zn-doped NVPF (NVZ_0.03PF@C) demonstrates that subtle lattice modifications can significantly boost electrochemical performance. Density functional theory (DFT) calculations reveal the material design strategy, with a reduction in bandgap, which correlates with enhanced electronic conductivity and improved ion transport. The lattice expansion and the Zn²⁺-induced “pillar effect” reinforce the crystal structure, enabling superior rate capability and cycling performance, even under ultra-high current densities. Notably, the material exhibits almost 100 % capacity retention after 1000 and 2000 cycles at 10C and 20C, respectively, at room temperature. Furthermore, a full-cell composed of NVP//NVZ_0.03PF@C demonstrates excellent capacity retention, achieving 88 % at room temperature and 94 % at −20 °C, confirming its robustness across a wide temperature range. These findings position Zn-doped NVPF as an up-and-coming cathode candidate for high-rate, wide-temperature-range sodium-ion battery applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238519"},"PeriodicalIF":7.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218714","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":"Complete conversion of Ni foam to Ni3S2 using diverse sulfur sources with a freestanding PPy binder-free hybrid electrode for asymmetric supercapacitors","authors":"T. Arun,&nbsp;K. Aravinth,&nbsp;P. Balaji Bhargav","doi":"10.1016/j.jpowsour.2025.238518","DOIUrl":"10.1016/j.jpowsour.2025.238518","url":null,"abstract":"<div><div>The development of high-performance asymmetric supercapacitors with enhanced energy density remains a critical challenge in energy storage research. In this work, we present, for the first time, a novel binder-free Ni₃S₂ hybrid composite electrode with incorporation of polypyrrole (PPy) synthesized via a straightforward hydrothermal method. This unique composite architecture effectively shortens ion diffusion pathways and tuning the morphology, resulting in superior electrochemical performance. The optimized PPy@Ni₃S₂ electrode exhibits primarily pseudocapacitive behavior driven by synergistic redox reactions between multiple oxidation states within the composite. It achieves a remarkable specific capacitance of 1860 F/g at 1 A/g, outperforming many previously reported Ni₃S₂-based materials. When assembled into an asymmetric supercapacitor device, it delivers a specific capacitance of 63 F/g at 1 A/g, with an energy density of 23 Wh/kg at a power density of 798 W/kg, alongside excellent cycling stability with ∼119 % capacitance retention over 6000 cycles. These results demonstrate a significant advancement in electrode design and provide a promising route toward efficient, durable energy storage systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"660 ","pages":"Article 238518"},"PeriodicalIF":7.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218582","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":"Ce, Co co-doped LaMnO3 perovskite activating oxygen reduction reaction in Zn-air and Mg-air batteries","authors":"Jiaxin Huang ,&nbsp;Huanbin Gou ,&nbsp;Jinming Pan ,&nbsp;Yuping Liu ,&nbsp;Ming Nie ,&nbsp;Bo Shang ,&nbsp;Danmei Yu ,&nbsp;Guangsheng Huang ,&nbsp;Dingfei Zhang ,&nbsp;Fusheng Pan","doi":"10.1016/j.jpowsour.2025.238328","DOIUrl":"10.1016/j.jpowsour.2025.238328","url":null,"abstract":"<div><div>Within the domain of metal-air battery systems, developing the non - precious metal catalysts featuring extraordinary catalytic activity in oxygen reduction reaction (ORR) is crucial to the air-cathode. This work unveils a sol-gel engineered synthesis of La_0.9Ce_0.1Co_0.1Mn_0.9O₃ perovskite via the co-doping strategy, with targeted exploration of its electrochemical behavior and underlying mechanism in Zn-air and Mg-air battery systems. The perovskite La_0.9Ce_0.1Co_0.1Mn_0.9O₃ has a wealth of catalytically active ORR sites and a mesoporous architecture. The diffusion-limited current density of La_0.9Ce_0.1Co_0.1Mn_0.9O₃ successfully achieves a 1.2-fold enhancement relative to commercial Pt/C with a low H₂O₂ yield of &lt;0.27 %, underscoring its superior mass transport kinetics. The maximum power densities of La_0.9Ce_0.1Co_0.1Mn_0.9O₃-based primary/secondary zinc - air batteries are 130 and 83 mW cm⁻², respectively, which are on a par with those of Pt/C - based Zinc - air batteries. Whereas, the open - circuit voltage and maximum power density of the primary magnesium - air battery fabricated with 10 wt% KCl as the electrolyte are 1.85 V and 52 mW cm⁻², respectively, which exhibit superiority over Pt/C catalysts. In combination with DFT analyses, the La_0.9Ce_0.1Co_0.1Mn_0.9O₃ perovskite emerges as a prospective ORR catalyst for metal-air battery realization.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"659 ","pages":"Article 238328"},"PeriodicalIF":7.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217885","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}