Journal of energy storage最新文献_第8页

Versatile form-transformable 3D-printed supercapacitors system engineered from thermoplastic polyurethane/Polypyrrole/NiO@MnO2 由热塑性聚氨酯/聚吡咯/NiO@MnO2设计的多功能变形3d打印超级电容器系统

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-10 DOI: 10.1016/j.est.2025.118767

Praveenkumar Subramanian , Rizan Mujeeb Rahman , Jin-Heong Yim

{"title":"Versatile form-transformable 3D-printed supercapacitors system engineered from thermoplastic polyurethane/Polypyrrole/NiO@MnO2","authors":"Praveenkumar Subramanian , Rizan Mujeeb Rahman , Jin-Heong Yim","doi":"10.1016/j.est.2025.118767","DOIUrl":"10.1016/j.est.2025.118767","url":null,"abstract":"<div><div>The best features of 3D-structured energy storage devices, such as supercapacitors (SCs) and highly stretchable 3D electrode devices, have enormous potential for use in smart energy supply systems. The mechanical strength, stretchability, slow electron transit, active materials loading, and low performance limit the potential of flexible devices (SCs). A 3D thermoplastic polyurethane (TPU)-rooted–Polypyrrole (PPy)/NiO@MnO<sub>2</sub> matrix SC electrode, (3D-TPU/PPy/NiO@MnO<sub>2</sub>), is proposed to be applied in three-dimensional SCs to reveal these issues. TPU was joined into filaments with several filling densities (30 %, 50 %, and 70 %) to create customised mesoporous geometrical structures optimised for energy storage electrodes. The composite 3D electrode had significant resistance to stresses of 6.5 MPa at ~160 % and this 3D printing method produced high-quality 3D structures that could tolerate mechanical loading stress. The 50 % filling density 3D-TPU/PPy/NiO@MnO<sub>2</sub> matrix SC exhibits a capacitance of 173.5 mF/cm<sup>2</sup> and 98 % cyclic stability after 6000 cycles. This SC also performs well electrochemically with mechanical stretching; critically, it maintains a capacitance of 181.9 mF/cm<sup>2</sup> even after 125 % mechanical elongation, and performance starts to drop off at higher strains. This method could accelerate the development of a scalable 3D matrix energy storage unit utilizing stretchable materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118767"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270982","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 lithium storage in Fe-doped Li3V2(PO4)3–Li3PO4/C composite cathodes fe掺杂Li3V2(PO4) 3-Li3PO4 /C复合阴极增强锂存储

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-10 DOI: 10.1016/j.est.2025.118795

Mebrahtom Gebresemati Weldehans, Hyejung Park, Hyomin Lee, Jaehyun Hur, Il Tae Kim

{"title":"Enhanced lithium storage in Fe-doped Li3V2(PO4)3–Li3PO4/C composite cathodes","authors":"Mebrahtom Gebresemati Weldehans, Hyejung Park, Hyomin Lee, Jaehyun Hur, Il Tae Kim","doi":"10.1016/j.est.2025.118795","DOIUrl":"10.1016/j.est.2025.118795","url":null,"abstract":"<div><div>A carbon-coated Li<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>–Li<sub>3</sub>PO<sub>4</sub> (LVP/LP/C) composite lithium-ion battery (LIB) cathode material with low Fe doping (LVFP/LP/C) is prepared using a facile hydrothermally assisted sol–gel method at a relatively lower annealing temperature (750 °C). Characterization techniques, including Fourier transform infrared (FTIR), Raman, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA), confirm its structural and morphological properties. Electrochemical evaluation shows superior performance as an LIB cathode in a half-cell, exhibiting a high initial discharge capacity of 124.3 mAh g<sup>−1</sup> and excellent capacity retention of 97.3 % after 200 cycles at 100 mA g<sup>−1</sup> in the 3.0–4.3 V (vs. Li/Li<sup>+</sup>) voltage window. The full-cell (LVFP/LP/C||graphite) also demonstrates excellent performance, achieving a reversible capacity of 73.5 mAh g<sup>−1</sup> and ~ 81.9 % retention after 85 cycles at 0.5C, with outstanding rate capability. Carbon coating enhances conductivity, while Li<sub>3</sub>PO<sub>4</sub> protects active materials by mitigating electrolyte decomposition and facilitating Li-ion diffusion. Fe doping introduces lattice defects, further improving conductivity and performance. These findings highlight the potential of surface modification and metal doping for advanced high-energy-density LIB cathode materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118795"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270985","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

Functional wood-based reversible thermochromic composite phase change energy storage materials for visual information storage and flame retardant 用于视觉信息存储和阻燃的功能性木基可逆热致变色复合相变储能材料

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-10 DOI: 10.1016/j.est.2025.118200

Lingjun Song , Yangjie Ou , Yongpeng Xia , Xianting Zhang , Lixian Sun , Yujia Sun , Fen Xu

{"title":"Functional wood-based reversible thermochromic composite phase change energy storage materials for visual information storage and flame retardant","authors":"Lingjun Song , Yangjie Ou , Yongpeng Xia , Xianting Zhang , Lixian Sun , Yujia Sun , Fen Xu","doi":"10.1016/j.est.2025.118200","DOIUrl":"10.1016/j.est.2025.118200","url":null,"abstract":"<div><div>Flame-retardant thermochromic composite phase change materials (CPCMs) that offer visual temperature monitoring and energy storage capabilities are essential for applications in smart buildings. Encapsulation of phase change materials (PCMs) in three-dimensional continuous porous carriers is an effective strategy to ensure shape stability in conventional latent heat storage systems. Wood, a renewable resource with a natural porous structure, is delignified to create a more complex three-dimensional hierarchical porous framework. Thermochromic materials and nano‑calcium carbonate (nanoCaCO<sub>3</sub>) are then melt-blended and impregnated into the delignified wood through vacuum impregnation. The resulting composite phase change material, CTBC/DW, possesses high heat storage density, reversible thermochromic properties, information storage and concealment capabilities, and flame retardancy. Differential scanning calorimetry (DSC) results show that CTBC/DW achieves a high thermal energy storage density (142.70–171.40 J g<sup>−1</sup> at 7–14 wt% nanoCaCO₃ loading) and excellent thermal stability. Importantly, CTBC/DW demonstrates significant reversible thermochromic behavior, with color changes from dark blue (25 °C) to Off-white (40 °C), making it useful for visualizing the phase change thermal storage process and enabling information access. Additionally, nanoCaCO<sub>3</sub> was introduced as a cladding material to solve the defect of flammability of wood, thereby improving the service life of the composites. This composite material holds considerable potential for a range of thermal energy storage applications, including information storage, decoration, furniture, and energy-efficient building solutions.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118200"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270800","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

In situ monitoring of internal temperature and hydrogen gas evolution in commercial lithium-ion batteries via flexible bifunctional sensors 利用柔性双功能传感器对商用锂离子电池内部温度和氢气析出进行现场监测

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118777

Xinyuan Li , Kelin Hu , Yuxiao Jiang , Shiqi Yang , Jing Zhang

{"title":"In situ monitoring of internal temperature and hydrogen gas evolution in commercial lithium-ion batteries via flexible bifunctional sensors","authors":"Xinyuan Li , Kelin Hu , Yuxiao Jiang , Shiqi Yang , Jing Zhang","doi":"10.1016/j.est.2025.118777","DOIUrl":"10.1016/j.est.2025.118777","url":null,"abstract":"<div><div>Lithium batteries (LIBs) in energy storage plants experience thermal runaway in severe cases due to inconsistent charging and discharging conditions. Traditional external parameter collection is insufficient for a battery management system to achieve a safe and comprehensive assessment. In this study, we propose a method for in-situ monitoring of the internal temperature and H<sub>2</sub> within batteries. This method is based on an ultrathin, flexible, bifunctional sensor, which can measure the resistance parameters induced by temperature and gas changes. We construct the temperature and gas sensors on flexible electrodes prepared through microelectronic printing technology. Polyimide films with flexible, breathable, and hydrophobic properties are prepared via electrospinning technology to encapsulate the sensors, which exhibit high thermal-response sensitivity of 0.036 °C<sup>−1</sup> and achieve an ultra-fast gas response/recovery time of 3 s/4.2 s. The results of long-term cycling experiments demonstrate that this thin-film sensor can efficiently monitor the internal temperature changes of batteries at different rates in real time, and it is capable of long term in-situ detection of H<sub>2</sub> under actual working conditions. Throughout the entire monitoring process, the influence of the sensor on battery performance is almost negligible. This method provides a new approach for the detectability of smart LIBs and early warning of thermal runaway, contributing to the intelligent management of LIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118777"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236628","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

Detection and localization of early-stage abnormal sounds in Lithium-ion battery thermal runaway 锂离子电池热失控早期异常声音的检测与定位

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118517

Xiaoliang Wang , Jiayuan Xiang , Fangfang Tu , Donghui Yang , Qi Wang , Rui Wang , Xinning Cao , Hao Jin

{"title":"Detection and localization of early-stage abnormal sounds in Lithium-ion battery thermal runaway","authors":"Xiaoliang Wang , Jiayuan Xiang , Fangfang Tu , Donghui Yang , Qi Wang , Rui Wang , Xinning Cao , Hao Jin","doi":"10.1016/j.est.2025.118517","DOIUrl":"10.1016/j.est.2025.118517","url":null,"abstract":"<div><div>Lithium-ion batteries are widely used in energy storage stations and power grid transmission because of their high energy density, fast discharge capability, and low maintenance requirements. However, they are susceptible to thermal runaway, which can result in fires or explosions under extreme conditions, posing a significant challenge to their large-scale deployment. Currently, there is a lack of accurate methods for early warning and localization of thermal runaway at the single-cell level. To address this, we propose an acoustic-based detection and localization system that can effectively detect early-stage abnormal sounds from the battery’s safety valve. Our findings demonstrate that the system can accurately detect and localize these early acoustic signals with high precision. Specifically, it provides an early warning up to 101 s before the safety valve opens and 791 s before full thermal runaway, achieving a localization accuracy of 0.05 m for abnormal sound signals. This work underscores the potential of acoustic-based monitoring for early thermal runaway detection, offering a proactive safety measure for lithium-ion battery applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118517"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236626","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

Synergistic internal temperature estimation and fault diagnosis of lithium-ion batteries via online sequential extreme learning machine 基于在线顺序极值学习机的锂离子电池内部温度协同估计与故障诊断

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118750

Zeyu Chen , Kunbai Wang , Meng Jiao , Rui Xiong

{"title":"Synergistic internal temperature estimation and fault diagnosis of lithium-ion batteries via online sequential extreme learning machine","authors":"Zeyu Chen , Kunbai Wang , Meng Jiao , Rui Xiong","doi":"10.1016/j.est.2025.118750","DOIUrl":"10.1016/j.est.2025.118750","url":null,"abstract":"<div><div>Temperature is a critical indicator for safety monitoring of lithium-ion batteries. However, due to uncertain thermal diffusion from the cell interior to the surface, surface measurements cannot accurately or promptly reflect internal states. To address this limitation, this study proposes a novel internal temperature estimation method applicable under both normal operation and short-circuit fault conditions. A synergistic framework is developed based on the online sequential extreme learning machine, enabling simultaneous internal temperature estimation and fault diagnosis. An innovative experimental setup was established using controlled external short circuits (ESC) and shallow, slow nail penetration to trigger internal short circuits (ISC). Experimental results demonstrate that the proposed method achieves high accuracy, with maximum errors of 1.0963 °C, 3.0876 °C, and 2.2119 °C under normal, ESC, and ISC conditions, respectively. Moreover, the method successfully distinguishes between ESC and ISC based on distinct internal temperature dynamics, confirming its capability for reliable fault classification. These results highlight the method's promise for real-time fault detection and safety monitoring in lithium-ion battery systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118750"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236638","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

A green and cost-effective mechanochemical approach for selective lithium recovery from spent lithium-ion batteries 从废锂离子电池中选择性回收锂的一种绿色且具有成本效益的机械化学方法

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118746

Weixin Li , Pengwei Li , Bai Song , Peng Yue , Dianxue Cao , Kai Zhu

{"title":"A green and cost-effective mechanochemical approach for selective lithium recovery from spent lithium-ion batteries","authors":"Weixin Li , Pengwei Li , Bai Song , Peng Yue , Dianxue Cao , Kai Zhu","doi":"10.1016/j.est.2025.118746","DOIUrl":"10.1016/j.est.2025.118746","url":null,"abstract":"<div><div>The escalating demand for lithium-ion batteries (LIBs) underscores the imperative for the development of highly efficient and environmentally sustainable recycling methodologies. Traditional pyrometallurgical and hydrometallurgical methods suffer from high energy consumption, reagent use, and environmental impact. In this research, we introduce an innovative mechanochemical (MC) methodology aiming at the selective recovery Li from spent LIBs, accompanied by the concurrent minimization Ni, Co, and Mn contents. The MC reaction facilitates the deintercalation of Li, followed by NaOH leaching, optimizing conventional acid leaching. Sodium citrate (Na<sub>3</sub>Cit) is employed as a reusable and cost-effective grinding aid, effectively reducing reagent consumption and eliminating the generation of waste liquids. The reusability of Na<sub>3</sub>Cit has been further substantiated, as evidenced by the maintenance of its selective separation efficiency for lithium across five consecutive cycles without notable decline. Under the conditions of optimal performance, the efficiency of lithium separation attains 98.6 %, accompanied by recovery rates of 98.59 % for lithium, 99.01 % for nickel, 99.02 % for cobalt, and 99.04 % for manganese, respectively. Compared with traditional pyrometallurgical and hydrometallurgical methods, the proposed method improves the profit of 2.07 and 1.33 $/kg waste lithium-ion batteries, respectively. Introducing MC technology, we unveil a recycling solution for spent LIBs thats not only highly efficient and cost-effective but also gentle on our planets ecosystem. This method also holds the potential for recovering other valuable metals, contributing to green resource recovery technologies.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118746"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236625","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

Theoretical analysis of Mo-based Janus transition metal dichalcogenide monolayers as anode in alkali-ion batteries 钼基Janus过渡金属二硫化物单层作为碱离子电池负极的理论分析

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118805

Quanzhen Wan , Jiawei Gong , Haiping Zhou , Rui Wang , Haiyan Lu

{"title":"Theoretical analysis of Mo-based Janus transition metal dichalcogenide monolayers as anode in alkali-ion batteries","authors":"Quanzhen Wan , Jiawei Gong , Haiping Zhou , Rui Wang , Haiyan Lu","doi":"10.1016/j.est.2025.118805","DOIUrl":"10.1016/j.est.2025.118805","url":null,"abstract":"<div><div>Janus transition metal dichalcogenides (TMDs) have attracted increasing attention as next-generation anode materials due to their out-of-plane asymmetry, intrinsic dipole moments, and tunable electronic properties. In this study, we conducted a systematic density functional theory (DFT) investigation of MoSSe, MoSTe, and MoSeTe monolayers as anode candidates for lithium, sodium, and potassium ion batteries. The results showed that MoSSe delivered a high theoretical capacity of 930 mAh/g for Li<sup>+</sup> storage, along with a low diffusion barrier of 0.08 eV and open-circuit voltage of 0.63 V. For Na<sup>+</sup> and K<sup>+</sup>, MoSTe and MoSeTe demonstrated superior adsorption energies of −3.00 and −2.55 eV, respectively, with corresponding diffusion barriers below 0.3 eV and open-circuit voltages ranging from 0.43 to 0.81 V. These Janus monolayers outperformed many conventional TMD and oxide-based anodes in terms of capacity, ion migration, and multi-ion adaptability. Electronic structure analysis revealed that alkali ion insertion led to band gap modulation and charge redistribution. The combined advantages of high capacity, low kinetic barrier, and moderate voltage profiles underscore the strong potential of Janus TMDs as chemically tunable and multi-ion compatible electrode materials for advanced energy storage systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118805"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236627","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

A non-flammable trimethyl phosphate-water hybrid electrolyte for highly reversible and long cycle life Zn-V2O5 batteries 一种用于高可逆和长循环寿命锌- v2o5电池的不可燃磷酸三甲基-水混合电解质

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-08 DOI: 10.1016/j.est.2025.118710

Jialing Zhu , Mingliang Shangguan , Haoxiang Li , Shuai Wang , Longqing Huang , Wenjun Zhang , Liusheng Xiao , Lan Xia

{"title":"A non-flammable trimethyl phosphate-water hybrid electrolyte for highly reversible and long cycle life Zn-V2O5 batteries","authors":"Jialing Zhu , Mingliang Shangguan , Haoxiang Li , Shuai Wang , Longqing Huang , Wenjun Zhang , Liusheng Xiao , Lan Xia","doi":"10.1016/j.est.2025.118710","DOIUrl":"10.1016/j.est.2025.118710","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (ZIBs) are emerging as one of the most promising energy storage systems due to their intrinsic safety, low cost, less rigorous manufacturing conditions, and environmental friendliness. However, their practical application is hindered by challenges such as uncontrollable zinc dendrite growth, water-induced zinc corrosion and parasitic reactions. Incorporating low-molecular-weight organic cosolvents to reduce water activity in electrolytes shows promise, but such strategies often introduce flammability risks. Herein, we report a non-flammable hybrid electrolyte using a flame-retardant solvent-trimethyl phosphate (TMP) as a cosolvent, which not only reconstructs the solvation structure of Zn<sup>2+</sup> and weakens the water activity, but also enables trimethyl phosphate to adsorb onto the Zn anode surface, forming a stable solid electrolyte interphase (SEI). This synergistic effect facilitates uniform zinc deposition while effectively suppressing zinc dendrite growth and cathode dissolution. The optimized electrolyte enables Zn||Zn symmetric cells to achieve unprecedented cycling stability exceeding 3000 h at 1 mA cm<sup>−2</sup>/1 mAh cm<sup>−2</sup>, while Zn||Cu asymmetric cells demonstrate a high average Coulombic efficiency of 99 % over 400 cycles. Remarkably, full cells employing V<sub>2</sub>O<sub>5</sub> cathodes deliver a high specific capacity of 417 mAh g<sup>−1</sup> with capacity retention rates of 89 % after 500 cycles and 80 % after 800 cycles at 0.5 A g<sup>−1</sup>. This work provides new insights into designing intrinsically safe electrolyte systems that simultaneously address multiple failure mechanisms in zinc-ion electrochemistry.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118710"},"PeriodicalIF":8.9,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236639","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

Realistic heat generation modeling and experimental validation for lithium-ion battery cells and modules 锂离子电池电池芯和模块的现实热生成建模和实验验证

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-10-07 DOI: 10.1016/j.est.2025.118769

Yacine Rezgui , Miloud Guemini , Ammar Tighezza

{"title":"Realistic heat generation modeling and experimental validation for lithium-ion battery cells and modules","authors":"Yacine Rezgui , Miloud Guemini , Ammar Tighezza","doi":"10.1016/j.est.2025.118769","DOIUrl":"10.1016/j.est.2025.118769","url":null,"abstract":"<div><div>Accurate thermal modeling is essential for predicting the behavior and ensuring the safety of lithium-ion battery cells and modules. In this study, a comprehensive electrothermal model is developed to realistically describe the heat generation inside 18650-type cells during discharge. The model incorporates multiple heat sources, including ohmic heating, polarization losses, reversible entropy change, side reactions, and post-discharge heat-sink effects. A temperature- and state-of-charge-dependent formulation for internal resistance and overpotential is employed, alongside a dynamic model for heat capacity during phase change in passive cooling materials. The model is implemented in COMSOL Multiphysics 6.1 and validated using experimental data reported in the literature for single cells and a 20-cell battery pack under discharge rates of 1C, 3C, and 5C. Results show excellent agreement between the predicted and experimental values of both temperature and heat generation rates, with relative errors below 5 % across all conditions. This validated model provides a robust foundation for future studies incorporating active thermal management strategies.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"138 ","pages":"Article 118769"},"PeriodicalIF":8.9,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270523","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