Journal of Electrochemical Energy Conversion and Storage最新文献_第2页

Experimental and Theoretical Analysis of Immersion Cooling of a Li-Ion Battery Module 锂离子电池模块浸没冷却的实验与理论分析

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-27 DOI: 10.1115/1.4063914

Swapnil Salvi, Bapiraju Surampudi, Andre Swarts, Jayant Sarlashkar, Ian Smith, Terry Alger, Ankur Jain

{"title":"Experimental and Theoretical Analysis of Immersion Cooling of a Li-Ion Battery Module","authors":"Swapnil Salvi, Bapiraju Surampudi, Andre Swarts, Jayant Sarlashkar, Ian Smith, Terry Alger, Ankur Jain","doi":"10.1115/1.4063914","DOIUrl":"https://doi.org/10.1115/1.4063914","url":null,"abstract":"Abstract Overheating of Li-ion cells and battery packs is an ongoing technological problem for electrochemical energy conversion and storage devices and systems, including in electric vehicles. Immersion cooling is a promising thermal management technique to address these challenges. This work presents experimental and theoretical analysis of the thermal and electrochemical impact of immersion cooling of a small module of Li-ion cells. Significant reduction in both surface and core temperature due to immersion cooling is observed, consistent with theoretical and simulation models developed here. However, immersion cooling is also found to result in a small but non-negligible increase in capacity fade of the cells. A number of hypotheses are formed and systematically tested through comparison of experimental measurements with theoretical modeling and simulations. Electrochemical Impedance Spectroscopy measurements indicate that the accelerated cell aging due to immersion cooling is likely to be due to enhanced lithium plating. Therefore, careful consideration of the impact of immersion cooling on long-term performance may be necessary. The results presented in this work quantify both thermal and electrochemical impacts of an important thermal management technique for Li-ion cells. These results may be of relevance for design and optimization of electrochemical energy conversion and storage systems.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"217 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136264063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

High-Accuracy Battery SOC Estimation Strategy Based on Deep Belief Network Cascaded with Extended Kalman Filter 基于扩展卡尔曼滤波级联深度信念网络的电池荷电状态高精度估计策略

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-13 DOI: 10.1115/1.4063431

Xiaoyu Liu, Lang Chen, Lijun Zhu, Jian Wang, Long Chen, Xiankai Zeng, Ziang Song, Lujun Wang

{"title":"High-Accuracy Battery SOC Estimation Strategy Based on Deep Belief Network Cascaded with Extended Kalman Filter","authors":"Xiaoyu Liu, Lang Chen, Lijun Zhu, Jian Wang, Long Chen, Xiankai Zeng, Ziang Song, Lujun Wang","doi":"10.1115/1.4063431","DOIUrl":"https://doi.org/10.1115/1.4063431","url":null,"abstract":"Abstract Battery state of charge (SOC) estimation is one of the main functions of the battery management system in electric vehicles. If the actual SOC of the battery differs significantly from the estimated value, it can lead to improper battery usage, resulting in unexpected rapid voltage drops or increases, which can affect driving safety. Therefore, high-accuracy SOC estimation is of great importance for battery management and usage. Currently used SOC estimation methods suffer from issues such as strong dependence on model parameters, error propagation from measurements, and sensitivity to initial values. In this study, we propose a high-precision SOC estimation strategy based on deep belief network (DBN) feature extraction and extended Kalman filter (EKF) for smooth output. The proposed strategy has been rigorously tested under different temperature conditions using the dynamic stress test (DST) and urban dynamometer driving schedule (US06) driving cycles. The mean absolute error (MAE) and root-mean-square error (RMSE) of the proposed strategy are controlled within 1.1% and 1.2%, respectively. This demonstrates the high-precision estimation achieved. To further validate the generality of this strategy, we also apply it to graphene batteries and conduct tests under US06 and highway fuel economy test (HWFET) driving cycles at temperatures of 25 °C and −10 °C. The test results show MAE of 0.47% and 2.01%, respectively.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135804889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Nano graphite-doped Spartina alterniflora-based hard carbon as high performance anode for sodium-ion batteries 纳米石墨掺杂互花米草硬碳作为钠离子电池的高性能阳极

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-05 DOI: 10.1115/1.4063397

Hongkuan Cheng, Qihang Shu, Huanyu Wei, Xingzhang Luo, Suzhen Huang, Zheng Zheng

引用次数: 0

A review on low-temperature performance management of lithium-ion batteries 锂离子电池低温性能管理研究进展

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-03 DOI: 10.1115/1.4063611

Jincheng Zhan, Yifei Deng, Yaohui Gao, Jiaoyi Ren, Yuang Liu, Rao Shun, Weifeng Li, Zhenhai Gao, Yupeng Chen

引用次数: 0

Supercapacitors based on spider nest shaped nickel foam electrodes operating in seawater 基于蜘蛛巢状泡沫镍电极在海水中工作的超级电容器

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-10-03 DOI: 10.1115/1.4063612

Haiying Li, Yuchen Hui, Zunbin Xia, Huixin Wang

{"title":"Supercapacitors based on spider nest shaped nickel foam electrodes operating in seawater","authors":"Haiying Li, Yuchen Hui, Zunbin Xia, Huixin Wang","doi":"10.1115/1.4063612","DOIUrl":"https://doi.org/10.1115/1.4063612","url":null,"abstract":"Abstract An environmental-friendly supercapacitor based on aqueous electrolyte was fabricated. Electrodes with conductive spider nest–shaped three-dimensional(3D)porous structure was prepared for the assembly of symmetric supercapacitors. The nickel foam was modified by multiwalled carbon nanotubes and β-cyclodextrin. The construction of spider nest was stabilized via the chemical bond inside carbon nanotubes, π-π stack effects among carbon nanotubes, and physical adsorption between nickel foam and carbon nanotubes substrate. The role of β-cyclodextrin is dispersant to prevent agglomeration of carbon nanotubes, thereby enhancing electroactive surface area of nickel foam, and improving the specific capacitance of the electrodes. Furthermore, the electrodes exhibited excellent rate capability. The obtained symmetrical supercapacitors exhibited excellent power density of 17561.3 W kg−1, good specific capacitance of 398.8 F g−1, and energy density of 154.8 Wh kg−1 for 4000 cycles with outstanding cycling stability. In addition, the specific capacitance, energy density, and power density of the supercapacitor operating in seawater were found to be 100.2 F g−1, 17.8 Wh kg−1, and 2568 Wh kg−1, respectively, for 3000 cycles. Overall, our findings indicate that the supercapacitor could stably operate in seawater and shows potential for use as an eco-friendly power supply to marine engineering equipment.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135696204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Lattice Boltzmann Simulations of non-homogeneous Li-O2 Battery Cathode: the effect of spatial and temporal porosity variations 非均匀锂氧电池正极的晶格玻尔兹曼模拟:时空孔隙度变化的影响

4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-09-22 DOI: 10.1115/1.4063489

Ajeesh Mohan T, Jithin M, Malay Das

{"title":"Lattice Boltzmann Simulations of non-homogeneous Li-O2 Battery Cathode: the effect of spatial and temporal porosity variations","authors":"Ajeesh Mohan T, Jithin M, Malay Das","doi":"10.1115/1.4063489","DOIUrl":"https://doi.org/10.1115/1.4063489","url":null,"abstract":"Abstract The porosity of the cathode in a lithium-oxygen battery is a crucial parameter that influences oxygen transport and active surface area availability. This study explores various cathode models with different initial porosity distributions and analyses the porosity evolution during discharge. The objective is to maximize the active surface area utilization of the cathode and increase the battery's discharge capacity. The simulations employ a recently developed Lattice Boltzmann method (LBM) model proposed by Chen et al. (Chen, S., B. Yang, and C. Zheng, Simulation of double-diffusive convection in fluid-saturated porous media by lattice Boltzmann method. International Journal of Heat and Mass Transfer, 2017. 108: p. 1501-1510.), which is capable of handling spatial and temporal variations in diffusion coefficient values. The results demonstrate that a hierarchical porous cathode provides a better specific capacity than a uniform porous cathode with the same average initial porosity. The specific capacity increases as the magnitude of initial porosity variation in the domain increases. Furthermore, incorporating oxygen channels improves oxygen transport in the cathode and offers a better specific capacity than the hierarchical porous cathode. A combination of hierarchical porous media and oxygen channels delivers the best specific capacity among all the other cathode models, as it efficiently balances oxygen transport and active surface area.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Heat transfer improvement of prismatic lithium-ion batteries via a mini-channel liquid-cooling plate with vortex generators 利用带涡流发生器的小通道液冷板改善棱柱形锂离子电池的传热性能

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-08-31 DOI: 10.1115/1.4063324

Huanwei Xu, Shi-Shuang Xiong, Wei Li, Lingfeng Wu, Zhonglai Wang

{"title":"Heat transfer improvement of prismatic lithium-ion batteries via a mini-channel liquid-cooling plate with vortex generators","authors":"Huanwei Xu, Shi-Shuang Xiong, Wei Li, Lingfeng Wu, Zhonglai Wang","doi":"10.1115/1.4063324","DOIUrl":"https://doi.org/10.1115/1.4063324","url":null,"abstract":"\u0000 Temperature is a critical factor affecting the performance and safety of battery packs of electric vehicles (EVs). The design of liquid cooling plates based on mini-channels has always been the research hotspots of battery thermal management systems (BTMS). This paper investigates the effect of adding vortex generators (VGs) to the liquid cooling channel on the heat dissipation capacity and temperature uniformity of the battery. The shape of the vortex generators (triangle, trapezoid, and semicircle), placement position (middle, inlet, and outlet of the channel), different flow rates, and different number of channels on the heat dissipation of the battery are systematically analysed. The research results indicate that: (1) The semi-circular vortex generator has better heat dissipation and a relatively lower impact on pressure drop than the triangular and trapezoidal vortex generators (2) The effect of adding vortex generators is more obvious when the flow rate is small in the cooling channels. When the flow velocity is 0.025 m/s, the heat dissipation performance can be increased by 7.4%. (3) When the cross-sectional area of the inlet is fixed, the heat dissipation effect of more channels is better. The average temperature of three and seven cooling channels decreases with a decrease of 8.87%. (4) The temperature difference can be effectively reduced when the vortex generators are concentrated near the outlet of the flow outlet. Its temperature difference is lower than that when the vortex generators are placed near the inlet, with a decrease of 10.5%.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47923316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 investigation and controllability study of electrochemical actuators based on Si/CNTs composite material 基于Si/CNTs复合材料的电化学致动器的实验研究与可控性研究

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-07-27 DOI: 10.1115/1.4063057

Zhilin Wu, Xiaobing Yang, Kai Sheng, Dawei Li

{"title":"Experimental investigation and controllability study of electrochemical actuators based on Si/CNTs composite material","authors":"Zhilin Wu, Xiaobing Yang, Kai Sheng, Dawei Li","doi":"10.1115/1.4063057","DOIUrl":"https://doi.org/10.1115/1.4063057","url":null,"abstract":"\u0000 Electrochemical actuators can convert electrical energy into mechanical energy directly and have been applied widely. With a large volume expansion in the electrochemical reaction, silicon material demonstrates enormous potential in the manufacture of the electrochemical actuators. Here, we propose a new electrochemical actuator based on Si/CNTs composite electrode. A mathematical model is developed to analyze the relationship among material parameters, structural changes, and bending deformation. The curvature changes of the cantilever beam are captured by a CCD camera during electrochemical cycling. Combining the model and bending curvatures, the modulus and swell strain are extracted and detailed analyzed. Here, the elastic modulus of the composite electrode softens and decreases from 9.59 GPa to 4.78 GPa, while the swell strain increases from 0.12% to 2.97% when arriving 6% normalized concentration of lithium. These results show that the composite material possesses excellent bending resistance and deformation ability. Also, the curvature changes under different thickness ratios are predicted successfully, the evolution of stress in the working electrode is simulated, and the loading experiment of the actuator is carried out. This work provides a new way to realize the controllability of the electrochemical actuators.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48745520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Thermal and Air Management of an Open Cathode PEM Fuel Cell using Sliding Mode Control 采用滑模控制的开阴极PEM燃料电池的热管理和空气管理

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-07-27 DOI: 10.1115/1.4063056

K. Ram, Shanal Kumar, Vincent Léchappé, A. Mohammadi, Maurizio Cirrincione

{"title":"Thermal and Air Management of an Open Cathode PEM Fuel Cell using Sliding Mode Control","authors":"K. Ram, Shanal Kumar, Vincent Léchappé, A. Mohammadi, Maurizio Cirrincione","doi":"10.1115/1.4063056","DOIUrl":"https://doi.org/10.1115/1.4063056","url":null,"abstract":"\u0000 The paper presents a simplified nonlinear model for an open cathode proton exchange membrane fuel cell (PEMFC) and its control by using three different strategies. The model presented uses four state variables. The mass flow of oxygen, hydrogen flow, water and temperature were taken to be the critical dynamics in the system. The unknown parameters were estimated using the experimental data of a 1.2 kW PEMFC. The simplified model showed good agreement with experimental results. Control schemes were implemented to control the stack temperature of the PEMFC. The proportional (P) and proportional-integral (PI) Control performed well but had a poorer response compared to the sliding mode control (SMC) scheme. The study of the different control schemes reveals the dangers of singularly controlling either the oxygen excess ratio or the temperature. Results show the best control is achieved when the excess ratio is control through the reference temperature. The study also compares the parasitic losses from the fans caused by the different controllers. Overall the results provide a good insight into designing a robust control system for an open cathode PEMFC for faster response and greater durability.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44175269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Promoting Effect of PbO on Ir Nanosurface Towards Ethanol Electrocatalytic Oxidation in Alkaline Media PbO对Ir纳米表面乙醇在碱性介质中电催化氧化的促进作用

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2023-07-25 DOI: 10.1115/1.4063017

Huazhong Ma, Sheng-Rong He, Xingyu Ma, Yaoyue Yang

{"title":"Promoting Effect of PbO on Ir Nanosurface Towards Ethanol Electrocatalytic Oxidation in Alkaline Media","authors":"Huazhong Ma, Sheng-Rong He, Xingyu Ma, Yaoyue Yang","doi":"10.1115/1.4063017","DOIUrl":"https://doi.org/10.1115/1.4063017","url":null,"abstract":"\u0000 Metal-metal (hydr)oxide interfaces can promote the CO2 selectivity of ethanol oxidation reaction (EOR) due to so-called metal-oxide-interaction (MOI). Here, we first show that the mixture of Ir and PbO species at the nanoscale can also form “bifunctional effect” sites, where C-C bond of ethanol can be effective cut at Ir sites to generate C1 intermediates, and nearby PbO species could provide oxygenated-species. Actually, the as-prepared Ir-PbO/C catalysts with a mean metallic nanoparticle size of 2.6±0.5 nm can greatly improve the activity, stability and C1 pathway selectivity of EOR. Specifically, it exhibits superior mass activity of 1150 mA mg−1Ir in 1 M NaOH solution containing 1 M C2H5OH. Chronoamperometry tests show that the stability of Ir-PbO/C is also significantly improved compared with Ir/C. In situ electrochemical infrared absorption spectral results confirm that the addition of oxophilic PbO species could accelerate the oxidative removal of COad intermediates, thereby greatly improving catalytic performance. This study may give new insights into designing efficient anode catalysts for the direct ethanol fuel cells (DEFCs).","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47320759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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