Journal of Electrochemical Energy Conversion and Storage最新文献

Internal short circuit and dynamic response of large-format prismatic lithium-ion battery under mechanical abuse 大型棱柱形锂离子电池在机械滥用下的内部短路和动态响应

IF 2.7 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-07-26 DOI: 10.1115/1.4066056

Shuai Jiang, Fangyuan Shi, Jie Li, Yongjun Pan, Honggang Li, Binghe Liu

{"title":"Internal short circuit and dynamic response of large-format prismatic lithium-ion battery under mechanical abuse","authors":"Shuai Jiang, Fangyuan Shi, Jie Li, Yongjun Pan, Honggang Li, Binghe Liu","doi":"10.1115/1.4066056","DOIUrl":"https://doi.org/10.1115/1.4066056","url":null,"abstract":"\u0000 Prismatic lithium-ion batteries (LIBs) are becoming the most prevalent battery type in electric vehicles, and their mechanical safety is garnering increased attention. Understanding the mechanical response and internal short circuit (ISC) of prismatic LIBs during dynamic impact is important for enhancing the safety and reliability of electric vehicles. Thanks to the pioneer's works on the cylindrical and pouch LIB, prismatic LIB can draw on relevant experimental and numerical modeling methods. However, there is still a lack of research on the dynamic effects of prismatic LIB in various loading directions. To address this disparity, the current research utilizes quasi-static and dynamic impact experiments on prismatic LIBs as a foundation. First, the mechanical response of a sizable prismatic LIB under quasi-static conditions and the dynamic effects are examined when subjected to mechanical abuse from various loading directions. Second, an anisotropic finite element model that considers dynamic strain rates are developed, enabling it to accurately represent the mechanical response to both quasi-static and dynamic impact loads. At last, we performed an analysis of ISC occurring under dynamic loading conditions combining the experimental and simulated results. The experimental results as well as the established model can provide reference for the safe design, application, and analysis of prismatic LIBs.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141801759","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 runaway characteristics of Ni-rich lithium-ion batteries employing TPP-based electrolytes 采用 TPP 电解质的富镍锂离子电池的热失控特性

IF 2.7 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-07-22 DOI: 10.1115/1.4066013

Zhenhai Gao, S. Rao, Zien Zhang, Yupeng Wang, Yang Xiao, Quan Yuan, Weifeng Li

{"title":"Thermal runaway characteristics of Ni-rich lithium-ion batteries employing TPP-based electrolytes","authors":"Zhenhai Gao, S. Rao, Zien Zhang, Yupeng Wang, Yang Xiao, Quan Yuan, Weifeng Li","doi":"10.1115/1.4066013","DOIUrl":"https://doi.org/10.1115/1.4066013","url":null,"abstract":"\u0000 Enhancing the safety performance of high-energy-density lithium-ion batteries are crucial for their widespread adoption. Herein, a cost-effective and highly efficient electrolyte additive, Triphenyl phosphate (TPP), demonstrates flame-retardant properties by scavenging hydrogen radicals in the flame, thereby inhibiting chain reactions and flame propagation to enhance the safety performance of graphite/LiNi0.8Co0.1Mn0.1O2 (NCM811) pouch cells. The results reveal that the capacity retention of cells without flame retardants, and those with the addition of 1 wt%, 3 wt%, 5 wt%, and 10 wt% TPP, is 96.4%, 92.1%, 84.15%, 71.0%, and 15.4% (1/2C 300 cycles), respectively. Furthermore, compared to cells without flame retardants, the highest temperature during thermal runaway decreases by 10.7%, 28.9%, 36.8%, and 40.4% with the addition of 1 wt%, 3 wt%, 5 wt%, and 10 wt% TPP, respectively. Through comprehensive analysis of the impact of flame-retardant additives on battery electrochemical performance and safety, it is determined that the optimal addition amount is 3 wt%. At this level, there are no significant flames during battery abuse, the triggering temperature for thermal runaway increases by 26.6°C, nd the maximum temperature decreases by 175°C. Moreover, even after 300 cycles at 1/2C, a capacity of 814.5mAh g-1 is retained, with a capacity retention rate of 84.1%. This study provides valuable insights into the mitigation of thermal runaway in high-energy-density power batteries.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141816441","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

Coupled Multiphysics Modeling of Lithium-ion Batteries for Automotive Crashworthiness Applications 用于汽车防撞应用的锂离子电池耦合多物理场建模

IF 2.7 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-07-19 DOI: 10.1115/1.4066019

Anudeep Mallarapu, I. Çaldichoury, Pierre L'Eplattenier, Nathaniel Sunderlin, S. Santhanagopalan

{"title":"Coupled Multiphysics Modeling of Lithium-ion Batteries for Automotive Crashworthiness Applications","authors":"Anudeep Mallarapu, I. Çaldichoury, Pierre L'Eplattenier, Nathaniel Sunderlin, S. Santhanagopalan","doi":"10.1115/1.4066019","DOIUrl":"https://doi.org/10.1115/1.4066019","url":null,"abstract":"\u0000 Considerable advances have been made on battery safety models, but achieving predictive accuracy across a wide range of conditions continues to be challenging. Interactions between dynamically evolving mechanical, electrical and thermal state variables make model prediction difficult during mechanical abuse scenarios. In this study, we develop a physics-based modeling approach which allows for choosing between different mechanical and electrochemical models depending on the required level of analysis. We demonstrate the use of this approach to connect cell-level abuse response to electrode-level and particle-level transport phenomenon. A pseudo-two-dimensional model and a simplified single-particle models are calibrated to electrical-thermal cycling data and applied to mechanically induced short circuit scenario to understand how the choice of electrochemical model affects the model prediction under abuse scenarios. These models are implemented using user defined subroutines on LS-DYNA finite element software and can be coupled with existing automotive crash safety models.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141821416","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

Neural Network-Based Modeling of Diffusion-Induced Stress in a Hollow Cylindrical Nano-Electrode of Lithium-Ion Battery 基于神经网络的锂离子电池中空圆柱纳米电极扩散应力建模

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-05-20 DOI: 10.1115/1.4065536

Yong Li, Yunhao Wu, He Huang, Kai Zhang, Fuqian Yang

{"title":"Neural Network-Based Modeling of Diffusion-Induced Stress in a Hollow Cylindrical Nano-Electrode of Lithium-Ion Battery","authors":"Yong Li, Yunhao Wu, He Huang, Kai Zhang, Fuqian Yang","doi":"10.1115/1.4065536","DOIUrl":"https://doi.org/10.1115/1.4065536","url":null,"abstract":"\u0000 Understanding the interaction between mechanical deformation and mass transport, such as diffusion-induced stress, is crucial in the development of advanced battery materials and electrochemical devices. Mathematical modeling and solving the coupling problems have played important roles in advancing the understanding of the interaction between mechanical deformation and mass transport. As the complexity of mathematical modeling continues to increase, numerical methods used to solve the related coupling problems are likely to encounter significant challenges. This work explores the feasibility of designing a neural network specifically for solving diffusion-induced stress in the electrode of lithium-ion battery via deep learning techniques. A loss function is constructed from the spatiotemporal coordinates of sampling points within the solution domain, the overall structure of the system of partial differential equations, boundary conditions, and initial conditions. The distributions of stress and lithium concentration in a hollow-cylindrical nanoelectrode are obtained. The high degree of conformity between the numerical results and those from finite element method is demonstrated.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122261","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

Effect of Substrate Temperature on the Electrochemical and Supercapacitance Properties of Pulsed Laser-Deposited Titanium Oxynitride Thin Films 基底温度对脉冲激光沉积氧化钛薄膜的电化学和超级电容特性的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-05-20 DOI: 10.1115/1.4065535

Ikenna Chris-Okoro, Jacob Som, Sheilah Cherono, Mengxin Liu, Swapnil Nalawade, Xiaochuan Lu, Frank Wise, Shyam Aravamudhan, Dhananjay Kumar

{"title":"Effect of Substrate Temperature on the Electrochemical and Supercapacitance Properties of Pulsed Laser-Deposited Titanium Oxynitride Thin Films","authors":"Ikenna Chris-Okoro, Jacob Som, Sheilah Cherono, Mengxin Liu, Swapnil Nalawade, Xiaochuan Lu, Frank Wise, Shyam Aravamudhan, Dhananjay Kumar","doi":"10.1115/1.4065535","DOIUrl":"https://doi.org/10.1115/1.4065535","url":null,"abstract":"\u0000 Electrocatalytically active titanium oxynitride (TiNO) thin films were fabricated on commercially available titanium metal plates using a pulsed laser deposition (PLD) method for energy storage applications. The elemental composition and nature of bonding were analyzed using x-ray photoelectron spectroscopy (XPS) to reveal the reacting species and active sites responsible for the enhanced electrochemical performance of the TiNO electrodes. Symmetric supercapacitor devices were fabricated using two TiNO working electrodes separated by an ion-transporting layer to analyze their real-time performance. The galvanostatic charge-discharge studies on the symmetric cell have indicated that TiNO films deposited on the polycrystalline titanium plates at lower temperatures are superior to TiNO films deposited at higher temperatures in terms of storage characteristics. For example, TiNO films deposited at 300°C exhibited the highest specific capacity of 69 mF/cm2 at 0.125 mA/cm2 with an energy density of 7.5 Wh/cm2. The performance of this supercapacitor (300°C TiNO) device is also found to be ∼ 22 % better compared to that of a 500°C TiNO supercapacitor with a capacitance retention ability of 90% after 1000 cycles. The difference in the electrochemical storage and capacitance properties is attributed to the reduced leaching away of oxygen from the TiNO films by the Ti plate at lower deposition temperatures, leading to higher oxygen content in the TiNO films and, consequently, a high redox activity at the electrode/electrolyte interface.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141123331","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

Mechanical deformation in lithium-ion battery electrodes: modelling and experiment 锂离子电池电极的机械变形：建模与实验

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-05-20 DOI: 10.1115/1.4065534

Jamie Foster, Young Hahn, Huzefa Patanwala, Victor Oancea, Elham Sahraei

引用次数: 0

Optimization of electrode manufacturing processes from the perspective of mechanical properties 从机械性能角度优化电极制造工艺

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-04-23 DOI: 10.1115/1.4065380

Binqi Li, Jinyang Song, Jianhua Zhou, Jiaying Chen, Jianping Li, Jiang Chen, Lubing Wang, Kai Wu

{"title":"Optimization of electrode manufacturing processes from the perspective of mechanical properties","authors":"Binqi Li, Jinyang Song, Jianhua Zhou, Jiaying Chen, Jianping Li, Jiang Chen, Lubing Wang, Kai Wu","doi":"10.1115/1.4065380","DOIUrl":"https://doi.org/10.1115/1.4065380","url":null,"abstract":"\u0000 As the fundamental part of battery production, the electrode manufacturing processes have a key impact on the mechanical and electrochemical properties of batteries. A comprehensive study is designed in this paper to reveal the manufacturing effect from the perspective of mechanical properties. Initially, the electrodes samples are prepared after different manufacturing process, i.e., slurry mixing, coating, drying, calendering, slitting, punching, cutting, assembling, electrolyte filling and formation. The effects of these processes on the mechanical response and morphology of electrodes are investigated. The calendering process significantly enhances the strength of both anode and cathode while providing a more uniform distribution of particles on the electrode. Besides, according to literature studies, the slurry mixing process has a critical impact on electrode deformation and failure. Hence, the effects of compaction density ρc and binder content Bc are further discussed to improve the slurry mixing and calendering processes. The active layer will debond from the current collector during cathode failure process as ρc and Bc decreases. This study provides valuable suggestions for optimizing the mechanical response of electrodes under key electrode processes.","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140670720","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

The size and charge effect of Pt cluster on the electrocatalytic activity towards the first step of dehydrogenation of methanol 铂团簇的尺寸和电荷对甲醇脱氢第一步电催化活性的影响

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-04-05 DOI: 10.1115/1.4065275

Yong-Chun Tong, Qing-Yun Wang, Yu-Jie Hu, Zhi-Juan Shi, Ke Zhang

引用次数: 0

Calendar life enhancement of commercial ultra-high-rate LiFePO4/graphite batteries for electromagnetic launch 提高用于电磁发射的商用超高速磷酸铁锂/石墨电池的日历寿命

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-04-05 DOI: 10.1115/1.4065279

Xinlin Long, Lang Liu, Ziqing Zeng

{"title":"Calendar life enhancement of commercial ultra-high-rate LiFePO4/graphite batteries for electromagnetic launch","authors":"Xinlin Long, Lang Liu, Ziqing Zeng","doi":"10.1115/1.4065279","DOIUrl":"https://doi.org/10.1115/1.4065279","url":null,"abstract":"\u0000 Due to the advantages of ultra high power density, long cyclic life and desirable safety, ultra-high-rate LiFePO4/graphite batteries(U-LIBs) are used as the energy storage system for electromagnetic launcher. However, the short calendar life of U-LIB limits its further application in the field of electromagnetic launch. In this study, the calendar life of commercial U-LIB is improved through the optimization design of anode materials and electrolyte. The calendar life is successfully improved without affecting the battery performances by appropriately increasing the particle size of graphite in the anode and properly reducing the proportion of dimethyl carbonate (DMC) which has low stability in the electrolyte. The average particle size of graphite is increased from 5 µm to 8 µm with a compaction density of 1.3 g cm−3 as the best option. The electrolyte formulation is optimized from 30% ethylene carbonate (EC), 60% DMC, 10% ethyl methyl carbonate (EMC) to 30% EC, 50% DMC, 20% EMC. After comprehensive optimization, the calendar life of commercial U-LIB was significant improved at different temperature and state of charge(SOC). For example, the one-month-storage capacity retention of U-LIB increased from 96.9% to 98% under the temperature of 45°C at 50%SOC (meaning 35.5% decrease on capacity loss), and increased from 98.2% to 98.8% under the temperature of 25°C at 100%SOC (33.3% decrease on capacity loss).","PeriodicalId":15579,"journal":{"name":"Journal of Electrochemical Energy Conversion and Storage","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140739262","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

Zr0.1Fe0.9V1.1Mo0.9O7 as cathode for LIB 用作 LIB 阴极的 Zr0.1Fe0.9V1.1Mo0.9O7

IF 2.5 4区工程技术

Journal of Electrochemical Energy Conversion and Storage Pub Date : 2024-04-02 DOI: 10.1115/1.4065248

Baohe Yuan, Zheng An, Heng Qi, Jianming Chen, Qi Xu

引用次数: 0