Journal of Power Sources最新文献

Real-vehicle experimental validation of a predictive energy management strategy for fuel cell vehicles 燃料电池汽车预测能量管理策略的实车试验验证

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-12-01 DOI: 10.1016/j.jpowsour.2024.235901

Sandro Kofler , Georg Rammer , Alexander Schnabel , David Weingrill , Peter Bardosch , Stefan Jakubek , Christoph Hametner

Predictive information is highly valuable for energy management strategies (EMSs) of fuel cell vehicles. In particular, long-term predictions can significantly improve the fuel efficiency because they allow for an optimization of the energy management before departure. This potential has been demonstrated in numerous simulation studies. This work extends the literature with an extensive experimental validation of a predictive EMS that exploits route-based long-term predictions in the form of optimized reference trajectories for the battery state of charge. The experimental validation is performed with a real passenger fuel cell vehicle and strongly focuses on the real-world application where random influences such as traffic cause considerable disturbances with respect to the long-term prediction. The validation comprises two stages: First, real driving tests are repeatedly conducted on public roads, analyzing the robustness of the predictive EMS and assessing fuel efficiency gains over a nonpredictive EMS. Second, chassis dynamometer tests are performed where a selected real driving cycle is reproduced to compare the two EMSs directly. The chassis dynamometer tests confirm a significant reduction in the fuel consumption by

6.4 %

compared to the nonpredictive EMS. The experimental results are analyzed quantitatively and qualitatively in detail.

预测信息对燃料电池汽车的能量管理策略具有重要的指导意义。特别是，长期预测可以显著提高燃油效率，因为它们可以在起飞前优化能源管理。这种潜力已在许多模拟研究中得到证实。这项工作扩展了文献，对预测性EMS进行了广泛的实验验证，该EMS以优化的电池充电状态参考轨迹的形式利用基于路线的长期预测。实验验证是用一辆真实的乘用燃料电池汽车进行的，并强烈关注现实世界的应用，其中交通等随机影响会对长期预测造成相当大的干扰。验证包括两个阶段：首先，在公共道路上反复进行真实驾驶测试，分析预测EMS的鲁棒性，并评估与非预测EMS相比的燃油效率提高。其次，进行底盘测力计测试，其中再现选定的真实驾驶循环，以直接比较两个ems。底盘测功机测试证实，与非预测性EMS相比，燃油消耗显著降低6.4%。对实验结果进行了详细的定性和定量分析。

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引用次数: 0

Enhanced chemical stability and H+/V4+ selectivity of microporous sulfonated polyimide via a triptycene-based crosslinker 三叶烯基交联剂增强了微孔磺化聚酰亚胺的化学稳定性和H+/V4+选择性

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-12-01 DOI: 10.1016/j.jpowsour.2024.235964

Jiachen Chu , Luxin Sun , Han Zhang , Jianxin Li , Xiaohua Ma

Long durability of sulfonated polyimide in vanadium redox flow battery (VRFB) is urgently required to be solved. Herein, we synthesize a triptycene-based crosslinker and use it as chemical crosslinking point to modify a linear sulfonated polyimide for promoting its antioxidative stability. The novel triptycene-based cross-linked sulfonated polyimide (TCSPI-X) membranes featuring covalently crosslinked network display lower water uptake and swelling ratio than the commercial perfluorinated ionomer membrane (Nafion 117) membrane. More importantly, unnoticeable proton conductivity loss is appeared. We speculate this is because of the covalently crosslinking structure provides stable proton transportation channels, and the formation of micropores induced by rigid triptycene unit decrease proton migration resistance. In which, the TCSPI-5 (with 5 % molar triptycene unit) exhibit higher voltage efficiency as compared with the pristine membrane TCSPI-0. Combined with the excellent vanadium ions resistance, the TCSPI-5 reaches energy efficiency of 78 % at the current density of 140 mA cm⁻². In addition, TCSPI-5 also shows high oxidation resistance even under strong acid and pentavalent vanadium ions (V⁵⁺) conditions. The above results suggest the potential of TCSPI-X membranes in VRFB application.

磺化聚酰亚胺在钒氧化还原液流电池（VRFB）中的长寿命是目前迫切需要解决的问题。本文合成了一种基于三叶烯的交联剂，并将其作为化学交联点对线性磺化聚酰亚胺进行改性，以提高其抗氧化稳定性。新型三甲烯基交联磺化聚酰亚胺（TCSPI-X）膜具有共价交联网络，其吸水性和溶胀率低于商用全氟离聚体膜（Nafion 117）。更重要的是，出现了不明显的质子电导率损失。我们推测这是由于共价交联结构提供了稳定的质子运输通道，而刚性三甲烯单元诱导形成的微孔降低了质子迁移阻力。其中，与原始膜TCSPI-0相比，具有5%摩尔三甲烯单位的TCSPI-5表现出更高的电压效率。结合优异的抗钒离子性能，TCSPI-5在140 mA cm−2的电流密度下达到78%的能量效率。此外，TCSPI-5在强酸和五价钒离子（V5+）条件下也表现出较高的抗氧化性。以上结果提示TCSPI-X膜在VRFB中的应用潜力。

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引用次数: 0

Jackfruit waste derived oxygen-self-doped porous carbon for aqueous Zn-ion supercapacitors 水基锌离子超级电容器用菠萝蜜渣衍生自氧掺杂多孔碳

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-12-01 DOI: 10.1016/j.jpowsour.2024.235931

Qian Chu , Zhizhou Chen , Changyu Cui , Can Xie , Zhen Wei , Xiao Li , Yanbin Xu , Yulin Li , Yuming Cui , Shihao Pei

To fully harness the benefits of high energy density, strategic fabrication of hierarchical porous carbon (PC) materials is essential and highly impactful. In this study, oxygen-self-doped PC materials are synthesized from jackfruit waste (JK) through pyrolysis combined with chemical activation. The resulting material (JKPC-4) features abundant interfacial active sites and a short ions/electrons transfer distance, enhancing the ion adsorption capacity and kinetic behavior of the cathode. Additionally, the oxygen-rich functional groups contribute to increased pseudocapacitance and enhance the wettability and conductivity of the material. Consequently, the assembled JKPC-4//JKPC-4 symmetric supercapacitor in 2M Na₂SO₄ electrolyte exhibits a high energy density of 36.06 Wh kg⁻¹ at 647.94 W kg⁻¹. Furthermore, the JKPC-4//Zn device demonstrates a notable capacity of 225 mAh g⁻¹ at 0.1 A g⁻¹, exceptional rate capability (93 mAh g⁻¹ at 10 A g⁻¹), high energy density (154 Wh kg⁻¹), and impressive cycle stability, retaining 97 % of its capacity after 10,000 cycles at 10 A g⁻¹. The electrochemical process is studied using ex-situ characterization. Mechanistic studies have shown that the outstanding energy storage capability and charge-transfer processes of JKPC-4 stem from the synergistic interplay between oxygen heteroatoms and suitable pore structure.

为了充分利用高能量密度的优势，分层多孔碳（PC）材料的战略制造是必不可少的，也是非常重要的。本研究以菠萝蜜废料（JK）为原料，采用热解结合化学活化的方法合成了氧自掺杂PC材料。所得材料JKPC-4具有丰富的界面活性位点和较短的离子/电子转移距离，增强了阴极的离子吸附能力和动力学行为。此外，富氧官能团有助于增加赝电容，提高材料的润湿性和导电性。因此，在2M Na2SO4电解液中组装的JKPC-4//JKPC-4对称超级电容器在647.94 W kg - 1下具有36.06 Wh kg - 1的高能量密度。此外，JKPC-4//Zn器件在0.1 a g−1时具有225 mAh g−1的显著容量，卓越的倍率能力（10 a g−1时93 mAh g−1），高能量密度（154 Wh kg−1），以及令人印象深刻的循环稳定性，在10 a g−1下循环10,000次后保持97%的容量。采用非原位表征方法对电化学过程进行了研究。机理研究表明，JKPC-4优异的储能性能和电荷传递过程源于氧杂原子与合适的孔隙结构之间的协同作用。

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引用次数: 0

A free-standing sulfide polyacrylonitrile/reduced graphene oxide film cathode with nacre-like architecture for high-performance lithium-sulfur batteries 一种独立的硫化聚丙烯腈/还原氧化石墨烯膜阴极，具有珍珠状结构，用于高性能锂硫电池

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-12-01 DOI: 10.1016/j.jpowsour.2024.235916

Junhong Lu, Yanlin Zhang, Jie Huang, Haoyang Jiang, Ben Liang, Benyuan Wang, Dafang He, Haiqun Chen

Sulfide polyacrylonitrile (SPAN) is regarded as a promising cathode material to replace traditional carbon/sulfur composites, due to its conversion solid-solid transformation mechanism that effectively eliminates the shuttle effect of lithium sulfur batteries (LSBs). Unfortunately, its low sulfur content and slow reaction kinetics greatly affect the electrochemical performance. In this paper, a scalable production method is developed to fabricate free-standing sulfide polyacrylonitrile/reduced graphene oxide (SPAN/RGO) film cathode with nacre-like architecture. In this novel free-standing film cathode, graphene nanosheets act as a stable conductive framework and SPAN nanoparticles evenly disperse between the graphene nanosheets. The dense layered structure effectively alleviates the volume expansion of sulfur during cycling. Ex-situ Raman analysis provides evidence for the reversible cleavage and reformation of C−S/S−S bonds throughout the charge-discharge cycle. With these advantages, free-standing SPAN/RGO film cathode exhibits a low-capacity decay rate of 0.052 % over 1000 cycles at 0.5 C. Additionally, it maintains stable cycling performance even when the SPAN loading reaches 10.0 mg cm⁻². This offers a straightforward and effective approach for the development of practical cathode materials for lithium-sulfur batteries (LSBs).

硫化物聚丙烯腈（SPAN）具有固-固转化机制，可有效消除硫锂电池（LSBs）的穿梭效应，被认为是替代传统碳/硫复合材料的极具前景的正极材料。但其硫含量低，反应动力学慢，严重影响了电化学性能。本文开发了一种可扩展的生产方法，用于制备具有珠状结构的独立硫化聚丙烯腈/还原氧化石墨烯（SPAN/RGO）薄膜阴极。在这种新型的独立薄膜阴极中，石墨烯纳米片作为稳定的导电框架，而SPAN纳米颗粒均匀地分散在石墨烯纳米片之间。致密的层状结构有效地缓解了循环过程中硫的体积膨胀。非原位拉曼分析提供了在整个充放电循环中C - S/S - S键可逆裂解和重组的证据。具有这些优点，独立的SPAN/RGO薄膜阴极在0.5℃下，在1000次循环中表现出0.052%的低容量衰减率。此外，当SPAN负载达到10.0 mg cm - 2时，它仍保持稳定的循环性能。这为开发实用的锂硫电池（LSBs）正极材料提供了一种简单有效的方法。

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引用次数: 0

Ethyl 2-butene phosphite as a film-forming additive for high voltage lithium-ion batteries 高压锂离子电池用2-丁烯亚酸乙酯成膜添加剂

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235966

Jianguo Liu , Jinghang Cao , Baohui Li , Xiao Xing , Gan Cui

Increasing the charge cutoff voltage can significantly improve the capacity of lithium-ion batteries. However, the structural degradation of Ni-rich cathodes and high reactivity of electrolytes at the high-potential cathodes greatly aﬀect the cycling stability. In this paper, a new type of cathode film-forming additive, ethyl 2-butene phosphite (EBP), is synthesized based on the molecular design of phosphite by increasing the functional group of carbon-carbon double bond and ring structure. Theoretical calculation shows that EBP has a higher HOMO level and can form a cathode electrolyte interphase (CEI) on the cathode electrode surface before the electrolyte in theory. The electrochemical performance of NCM622/Li half-cells is significantly enhanced by incorporating EBP into the electrolyte, achieving 72.52 % capacity retention over 100 cycles at 0.5C. Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Energy Dispersive Spectroscopy (EDS) are used to characterize the morphology of the anode and cathode, revealing that EBP forms a dense and complete CEI film on the surface of the LiNi_0.6Co_0.2Mn_0.2O₂ electrode. This film effectively blocks direct contact between the electrolyte and the cathode active material, prevents the dissolution of transition metals, improves interfacial stability, and consequently enhances the high-voltage cycling performance of the battery.

提高充电截止电压可以显著提高锂离子电池的容量。然而，富镍阴极的结构降解和高电位阴极处电解质的高反应性极大地影响了循环稳定性。本文在亚磷酸酯分子设计的基础上，通过增加碳碳双键官能团和环状结构，合成了一种新型阴极成膜添加剂——2-丁烯亚酸乙酯（EBP）。理论计算表明，EBP具有较高的HOMO能级，理论上可先于电解质在阴极电极表面形成阴极电解质界面相（CEI）。在电解液中掺入EBP可显著提高NCM622/Li半电池的电化学性能，在0.5℃下循环100次后容量保持率达到72.52%。利用扫描电镜（SEM）、x射线衍射（XRD）、x射线光电子能谱（XPS）和能谱（EDS）对阳极和阴极的形貌进行表征，发现EBP在LiNi0.6Co0.2Mn0.2O2电极表面形成致密完整的CEI膜。该膜有效地阻断了电解质与正极活性物质的直接接触，防止了过渡金属的溶解，提高了界面稳定性，从而提高了电池的高压循环性能。

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引用次数: 0

Increased electrolyte flow resistance and blockage due to hydrogen evolution in a flow battery single cell under stack electrolyte feeding conditions 液流电池单电池在叠层加料条件下析氢导致的电解质流动阻力增大和堵塞

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235940

Jincheng Dai , Qiang Ye , Tianshou Zhao

In a flow battery stack, individual cells are typically fed with electrolyte in a parallel configuration, resulting in identical pressure drops across each cell. In this parallel liquid supply system, the distribution of electrolyte flow is closely related to the flow resistance in each branch. During operation, gas bubbles generated by chemical and physical processes tend to accumulate in the electrode pores, obstructing electrolyte flow and leading to uneven electrolyte distribution. Previous studies have mainly focused on single-cell experiments using constant flow pumps, which differ significantly from the nearly constant pressure difference liquid supply within the stack electrodes. To investigate the effects of gas evolution on liquid flow under constant pressure difference conditions, we propose a gravity-driven electrolyte feeding system for testing in a single cell, which simulates the flow conditions encountered in real stack applications. Under the interaction between gas bubbles and liquid flow, hydrogen evolution reactions at the scale of “mA cm^-2” significantly reduce the electrolyte flow through the porous electrode. When the pressure difference drops below a critical threshold, the electrolyte flow rate continues to decrease significantly and may even stop entirely. And a sufficient feeding pressure difference is essential for enhancing bubble removal efficiency.

在液流电池组中，单个电池通常以并联配置的方式注入电解质，从而导致每个电池的压降相同。在并联供液系统中，电解液的流动分布与各支路的流动阻力密切相关。在工作过程中，化学和物理过程产生的气泡容易积聚在电极孔中，阻碍电解质流动，导致电解质分布不均匀。以往的研究主要集中在使用恒流泵的单细胞实验上，这与堆电极内几乎恒定压差的液体供应有很大的不同。为了研究恒压差条件下气体演化对液体流动的影响，我们提出了一种用于单电池测试的重力驱动电解质进料系统，该系统模拟了实际堆栈应用中遇到的流动条件。在气泡与液体流动相互作用下，“mA cm-2”尺度下的析氢反应显著降低了多孔电极的电解质流量。当压差降至某一临界阈值以下时，电解质流速继续显著下降，甚至可能完全停止。适当的进料压差是提高除泡效率的关键。

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引用次数: 0

Li-ion batteries with poly[poly(ethylene glycol) methyl ether methacrylate]-grafted oxidized starch solid and gel polymer electrolytes 用聚（聚乙二醇）甲基丙烯酸甲醚接枝氧化淀粉固体和凝胶聚合物电解质的锂离子电池

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235971

Zahra Hajian , Seyedeh-Arefeh Safavi-Mirmahalleh , Amir Rezvani Moghaddam , Hossein Roghani-Mamaqani , Mehdi Salami-Kalajahi

Polymer electrolytes are considered in lithium-ion batteries because of their high safety and properties such as flexibility, easy moldability, etc. Starch is one of these polymers from renewable resources. Considering the semi-crystal structure of starch and ion conduction in amorphous phase, herein starch is oxidized and then modified with poly[poly(ethylene glycol) methyl ether methacrylate]. Solid polymer electrolytes (SPEs) are prepared by dissolution of lithium salt within polymer while gel polymer electrolytes (GPEs) as crosslinked structures are swollen in lithium salt solution. After validation of successful syntheses, all SPEs and GPEs with different oxidation state and various PEGMA/oxidized starch are evaluated in Li-ion battery performance. The synthesized GPEs and SPEs show the highest ionic conductivity of 5.5 × 10⁻³ and 2.19 × 10⁻⁴ S cm⁻¹, respectively at room temperature. Lithium ion transfer number (t⁺) of 0.6–0.9 and electrochemical stability window of 4.4–4.9 V are obtained for SPEs and GPEs. The discharge capacity is ∼180 mAh g⁻¹ at 0.2 C with capacity retention of 75 % after 100 cycles.

聚合物电解质因其高安全性和柔韧性、易成型等特性而被广泛应用于锂离子电池中。淀粉就是其中一种可再生聚合物。考虑到淀粉的半晶结构和非晶相的离子传导，本文将淀粉氧化后用聚[聚（乙二醇）甲基丙烯酸甲醚]改性。固体聚合物电解质（spe）是由锂盐溶解在聚合物中制备的，而凝胶聚合物电解质（GPEs）是交联结构，在锂盐溶液中膨胀。在验证成功合成后，对所有具有不同氧化态的spe和gpe以及各种PEGMA/氧化淀粉在锂离子电池中的性能进行了评价。合成的gpe和spe在室温下表现出最高的离子电导率，分别为5.5 × 10−3和2.19 × 10⁻S cm⁻1。spe和gpe的锂离子转移数（t+）为0.6 ~ 0.9，电化学稳定窗口为4.4 ~ 4.9 V。在0.2℃下，放电容量为~ 180 mAh g−1，循环100次后容量保持率为75%。

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引用次数: 0

Boron doped Ti2Nb10O29 nanosheets core/shell arrays as advanced high-energy anode for fast lithium ions storage 硼掺杂Ti2Nb10O29纳米片芯壳阵列作为锂离子快速存储的先进高能阳极

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235944

Xingchen Zhao , Ruiwang Zhang , Shengjue Deng , Qin Zhou , Yan Zhang , Chunqing Huo , Shiwei Lin

Titanium niobium oxide (Ti₂Nb₁₀O₂₉, TNO) as anode for high-energy lithium ion batteries (LIBs) typically suffers from sluggish kinetics and reaction activity because of its inferior electronic/ionic conductivity and easy aggregation feature. Herein, we present a novel synergistic strategy to tackle such problems of TNO by combining boron (B) doping and porous carbon nanosheet (PCN) arrays support. Experiment results and theoretical calculations demonstrate that the doped B substantially ameliorates the intrinsic electronic/ionic conductivity of TNO, increases the oxygen vacancy content in TNO, and accelerates lithium ion diffusion. Meanwhile, high-conductive PCN arrays as growth skeleton can avoid the agglomeration of B-TNO particles. As a result, the as-prepared PCN/B-TNO anode delivers an impressive specific capacity of 303 mAh g⁻¹ at 1 C and 104 mAh g⁻¹ at 20 C, superior to the PCN/TNO anode. Additionally, PCN/B-TNO anode also possesses a prominent long-time durability (85 % capacity retention after 2000 cycles). Our work paves a new way of rationally constructing high-energy anodes for fast energy storage and release.

氧化钛（Ti2Nb10O29， TNO）作为高能锂离子电池（LIBs）的负极，由于其电子/离子导电性差、易聚集等特点，导致其动力学和反应活性较差。在此，我们提出了一种新的协同策略，通过结合硼(B)掺杂和多孔碳纳米片（PCN）阵列支持来解决TNO的这些问题。实验结果和理论计算表明，掺杂B能显著改善TNO的本特征电子/离子电导率，增加TNO中氧空位含量，加速锂离子扩散。同时，采用高导电性PCN阵列作为生长骨架可以避免B-TNO颗粒的团聚。因此，制备的PCN/B-TNO阳极在1℃和20℃下的比容量分别为303 mAh g - 1和104 mAh g - 1，优于PCN/TNO阳极。此外，PCN/B-TNO阳极还具有突出的长期耐用性（2000次循环后容量保持85%）。我们的工作为合理构建高能阳极以实现快速能量存储和释放开辟了一条新途径。

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引用次数: 0

In-situ decoration of NiCo-thiophene based metal-organic framework on nickel foam as an efficient electrocatalyst for oxygen evolution reaction nico -噻吩基金属有机骨架在泡沫镍上的原位修饰作为析氧反应的高效电催化剂

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235942

Muhammad Salman , Hanli Qin , Yuming Zou , Zhenyuan Ji , Hu Zhou , Xiaoping Shen , Hongbo Zhou , Guoxing Zhu , Premlatha Subramanian , Aihua Yuan

Developing efficient electrocatalysts for oxygen evolution reaction (OER) is highly demanded but still challenging due to sluggish reaction kinetics. Metal-organic frameworks (MOFs) are considered potential electrocatalysts for efficient OER. Herein, NiCo-thiophene based metal-organic frameworks (NiCo-TDC-MOF) are in situ grown on nickel foam (NF) via a convenient hydrothermal approach. The as-prepared binder-free NiCo-TDC-MOF electrode exhibits exceptional OER performance with ultralow overpotentials of 194, 248, and 296 mV at current densities of 10, 100 and 200 mA cm⁻², respectively. Notably, the electrode displays outstanding OER stability, operating steadily for 110 h and 73 h at current densities of 100 and 500 mA cm⁻², respectively. This work develops a facile strategy for designing lattice defect MOF-based electrocatalysts, paving the way for efficient OER systems. Moreover, the as-prepared electrocatalyst meets industrial applicability criteria with its stability at high current density.

开发高效的析氧反应电催化剂的需求很大，但由于反应动力学缓慢，仍然具有挑战性。金属有机骨架（MOFs）被认为是高效OER的潜在电催化剂。本文采用水热法在泡沫镍（NF）上原位生长镍噻吩基金属有机骨架（NiCo-TDC-MOF）。制备的无粘结剂NiCo-TDC-MOF电极在电流密度为10、100和200 mA cm - 2时的过电位分别为194、248和296 mV，具有优异的OER性能。值得注意的是，该电极显示出出色的OER稳定性，在电流密度分别为100和500 mA cm−2的情况下稳定工作110 h和73 h。这项工作为设计基于mof的晶格缺陷电催化剂开发了一种简便的策略，为高效的OER系统铺平了道路。此外，所制备的电催化剂在高电流密度下具有稳定性，符合工业适用性标准。

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引用次数: 0

Heuristic method for electric vehicle charging in a Spanish microgrid: Leveraging renewable energy surplus 西班牙微电网中电动汽车充电的启发式方法：利用可再生能源盈余

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources

Pub Date : 2024-11-30 DOI: 10.1016/j.jpowsour.2024.235945

Oscar Izquierdo-Monge, Amy Zulema Velasco Bonilla, Marta Lafuente-Cacho, Paula Peña-Carro, Ángel Hernández-Jiménez

The transition towards renewable energies has intensified due to the global energy crisis, climate neutrality goals, and the increase in electrical demand. Technologies such as wind and solar have driven this change, although they present challenges such as intermittency and volatility. To maintain grid stability, solutions such as microgrids and energy storage system are required, improving supply quality and energy efficiency. Electric vehicles have gained importance as energy storage system through Vehicle-to-Grid technology. This article describes the implementation of a heuristic method in the microgrid of CEDER-CIEMAT (Center for Renewable Energy Development – Center for Energy, Environmental and Technological Research) in Spain. This microgrid, with a diversity of components and consumption profiles, allows for the acquisition of accurate data in a real-world setting. The heuristic method optimizes the charging of electric vehicles by leveraging the surplus renewable energy from the center, achieving 78 % of charging with surplus power and 96 % with renewable energy. This results in annual savings exceeding 900 €, ensuring sustainable energy use in the microgrid.

由于全球能源危机、气候中和目标和电力需求的增加，向可再生能源的过渡已经加剧。风能和太阳能等技术推动了这一变化，尽管它们存在间歇性和波动性等挑战。为了维持电网的稳定，需要微电网和储能系统等解决方案，以提高供电质量和能源效率。通过车联网技术，电动汽车作为储能系统的重要性日益凸显。本文介绍了一种启发式方法在西班牙CEDER-CIEMAT（可再生能源发展中心-能源、环境和技术研究中心）微电网中的实施。这种微电网具有多种组件和消费概况，可以在现实环境中获取准确的数据。启发式方法利用中心剩余可再生能源对电动汽车充电进行优化，实现剩余电力充电78%，可再生能源充电96%。这样每年可节省超过900欧元，确保了微电网的可持续能源使用。

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引用次数: 0