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The safety aspect of sodium ion batteries for practical applications

Journal of Energy Chemistry 2024年第8期95卷 407-427,I0009页

作者： Yingshuai Wang Runqing Ou Jingjing Yang yuhang xin Preetam Singh Feng Wu Yumin Qian Hongcai Gao School of Materials Science&Engineering Beijing Institute of TechnologyBeijing 100081China School of Physics Beijing Institute of TechnologyBeijing 100081China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019ZhejiangChina Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China Department of Ceramic Engineering Indian Institute of Technology(Banaras Hindu University)VaranasiUttar Pradesh 221005India

Sodium-ion batteries(SIBs)with advantages of abundant resource and low cost have emerged as promising candidates for the next-generation energy storage ***,safety issues existing in electrolytes,anodes,and cathodes bring about frequent accidents regarding battery fires and explosions and impede the development of high-performance ***,safety analysis and high-safety battery design have become prerequisites for the development of advanced energy storage *** reported reviews that only focus on a specific issue are difficult to provide overall guidance for building high-safety *** overcome the limitation,this review summarizes the recent research progress from the perspective of key components of SIBs for the first time and evaluates the characteristics of various improvement *** orderly analyzing the root causes of safety problems associated with different components in SIBs(including electrolytes,anodes,and cathodes),corresponding improvement strategies for each component were discussed *** addition,some noteworthy points and perspectives including the chain reaction between security issues and the selection of improvement strategies tailored to different needs have also been *** brief,this review is designed to deepen our understanding of the SIBs safety issues and provide guidance and assistance for designing high-safety SIBs.

关键词： Sodium ion batteries Safety Organic electrolytes modification Solid-state electrolyte Anode bulk modification Cathode bulk design

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喻昌甘寒通络法探析及临床应用

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四川中医 2024年第6期42卷 22-25页

作者：辛宇航张福利苏金峰孙晶师佳莹宋双莹黑龙江中医药大学黑龙江哈尔滨150040

“甘寒通络”由喻嘉言首次提出。喻氏认为甘寒配伍一可清热息风,二可润燥补虚。喻氏将甘寒通络法用于胃阴亏虚之证,以生地、麦冬等甘寒之品息风清热、润燥补虚;对于胃阴亏虚夹杂痰浊湿热瘀血等邪气的复合证型,除了以甘寒息风清热通络、... 详细信息

“甘寒通络”由喻嘉言首次提出。喻氏认为甘寒配伍一可清热息风,二可润燥补虚。喻氏将甘寒通络法用于胃阴亏虚之证,以生地、麦冬等甘寒之品息风清热、润燥补虚;对于胃阴亏虚夹杂痰浊湿热瘀血等邪气的复合证型,除了以甘寒息风清热通络、养阴荣养络脉之外,辅以竹沥、竹茹、瓜蒌等甘寒之品祛痰浊湿热,以甘平气药补气通络瘀。对于胃阴亏虚证及胃阴亏虚兼杂复合证候,喻氏认为忌用辛温行气、苦寒燥烈、滋腻温补之类。导师张福利将喻氏甘寒通络结合叶天士辛润通络之法运用于胃阴亏虚为基础的复杂证型。

关键词：喻昌甘寒通络气味配伍虚风阴伤

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Li-ion Battery Failure Warning Methods for Energy-storage Systems

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Chinese Journal of Electrical Engineering 2024年第1期10卷 86-100页

作者： Peihao Wu Nawei Lyu yuhang Song xin Jiang Yang Jin School of Electrical and Information Engineering Zhengzhou UniversityZhengzhou 450001China

Energy-storage technologies based on lithium-ion batteries are advancing ***,the occurrence of thermal runaway in batteries under extreme operating conditions poses serious safety concerns and potentially leads to severe *** address the detection and early warning of battery thermal runaway faults,this study conducted a comprehensive review of recent advances in lithium battery fault monitoring and early warning in energy-storage systems from various physical *** focus was electrical,thermal,acoustic,and mechanical aspects,which provide effective insights for energy-storage system safety enhancement.

关键词： Lithium-ion batteries energy-storage systems thermal runaway characteristic signals fault warning

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The prospect and challenges of sodium-ion batteries for low-temperature conditions

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Interdisciplinary Materials 2022年第3期1卷 373-395页

作者： Meng Wang Qianchen Wang Xiangyu Ding Yingshuai Wang yuhang xin Preetam Singh Feng Wu Hongcai Gao School of Materials Science and Engineering Beijing Institute of TechnologyBeijingChina Department of Ceramic Engineering Indian Institute of Technology(BHU)VaranasiIndia

In recent years,considerable attention has been focused on the development of sodium-ion batteries(SIBs)because of the natural abundance of raw materials and the possibility of low cost,which can alleviate the concerns of the limited lithium resources and the increasing cost of lithium-ion *** the growing demand for reliable electric energy storage devices,requirements have been proposed to further increase the comprehensive performance of ***,the low-temperature tolerance has become an urgent technical obstacle in the practical application of SIBs,because the low operating temperature will lead to sluggish electrochemical reaction kinetics and unstable interfacial reactions,which will deteriorate the performance and even cause safety *** the basis of the charge-storage mechanism of SIBs,optimization of the composition and structure of electrolyte and electrode materials is crucial to building SIBs with high performance at low *** this review,the recent research progress and challenges were systematically summarized in terms of electrolytes and cathode and anode materials for SIBs operating at low *** typical full-cell configurations of SIBs at low temperatures were introduced to shed light on the fundamental research and the exploitation of SIBs with high performance for practical applications.

关键词： anode materials cathode materials electrolyte low temperatures sodium-ion batteries

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Electric-controlled pressure relief valve for enhanced safety in liquid-cooled lithium-ion battery packs

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Journal of Energy Chemistry 2024年第3期90卷 98-109,I0004页

作者： yuhang Song Jidong Hou Nawei Lyu xinyuan Luo Jingxuan Ma Shuwen Chen Peihao Wu xin Jiang Yang Jin Research Center of Grid Energy Storage and Battery Application School of Electrical and Information EngineeringZhengzhou UniversityZhengzhou 450001HenanChina

The liquid-cooled battery energy sto rage system(LCBESS) has gained significant attention due to its superior thermal management ***,liquid-cooled battery pack(LCBP) usually has a high sealing level above IP65,which can trap flammable and explosive gases from battery thermal runaway and cause *** poses serious safety risks and challenges for *** this study,we tested overcharged battery inside a commercial LCBP and found that the conventionally mechanical pressure relief valve(PRV) on the LCBP had a delayed response and low-pressure relief efficiency.A realistic 20-foot model of an energy storage cabin was constructed using the Flacs finite element simulation *** studies were conducted to evaluate the pressure relief efficiency and the influence on neighboring battery packs in case of internal explosions,considering different sizes and installation positions of the ***,a newly developed electric-controlled PRV integrated with battery fault detection is introduced,capable of starting within 50 ms of the battery safety valve ***,the PRV was integrated with the battery management system and changed the battery charging and discharging strategy after the PRV was *** tests confirmed the efficacy of this method in preventing *** paper addresses the safety concerns associated with LCBPs and proposes an effective solution for explosion relief.

关键词： Pressure relief valve Liquid-cooled battery pack Explosion Flacs

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Near infrared emissions from both high efficient quantum cutting (173%) and nearly-pure-color upconversion in NaY(WO_(4))_(2):Er^(3+)/Yb^(3+) with thermal management capability for silicon-based solar cells

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Light(Science & Applications) 2024年第1期13卷 113-126页

作者： Duan Gao Baojiu Chen Xuezhu Sha yuhang Zhang xin Chen Li Wang Xizhen Zhang Jinsu Zhang Yongze Cao Yichao Wang Lei Li Xiangping Li Sai Xu Hongquan Yu Lihong Cheng School of Science Dalian Maritime UniversityDalian 116026 LiaoningChina

Raising photoelectric conversion efficiency and enhancing heat management are two critical concerns for siliconbased solar *** this work,efficient Yb^(3+) infrared emissions from both quantum cutting and upconversion were demonstrated by adjusting Er^(3+) and Yb^(3+) concentrations,and thermo-manage-applicable temperature sensing based on the luminescence intensity ratio of two super-low thermal quenching levels was discovered in an Er^(3+)/Yb^(3+) codoped tungstate *** quantum cutting mechanism was clearly decrypted as a two-step energy transfer process from Er^(3+) to Yb^(3+).The two-step energy transfer efficiencies,the radiative and nonradiative transition rates of all interested 4 f levels of Er^(3+) in NaY(WO_(4))_(2) were confirmed in the framework of Föster-Dexter theory,Judd-Ofelt theory,and energy gap law,and based on these obtained efficiencies and rates the quantum cutting efficiency was furthermore determined to be as high as 173%in NaY(WO_(4))_(2):5 mol%Er^(3+)/50 mol%Yb^(3+) *** and nearly pure infrared upconversion emission of Yb3+under 1550 nm excitation was achieved in Er^(3+)/Yb^(3+)co-doped NaY(WO_(4))_(2) by adjusting Yb^(3+) doping *** Yb^(3+) induced infrared upconversion emission enhancement was attributed to the efficient energy transfer ^(4)I_(11/2)(Er^(3+))+^(2)F_(7/2)(Yb^(3+))→^(4)I_(15/2)(Er^(3+))+^(2)F_(5/2)(Yb^(3+))and large nonradiative relaxation rate of ^(4)I_(9/2).Analysis on the temperature sensing indicated that the NaY(WO_(4))_(2):Er^(3+)/Yb^(3+)serves well the solar cells as thermos-managing ***,it was confirmed that the fluorescence thermal quenching of ^(2)H_(11/2)/^(4)S_(3/2) was caused by the nonradiative relaxation of ^(4)S_(3/2).All the obtained results suggest that NaY(WO_(4))_(2):Er^(3+)/Yb^(3+) is an excellent material for silicon-based solar cells to improve photoelectric conversion efficiency and thermal management.

关键词： quantum thermal relaxation

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面向智能电网的融合通信MEC卸载策略

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电力信息与通信技术 2024年第6期22卷 10-17页

作者：李坤孟建罗广惠侯路程辉刘明峰管荑辛雨航曲增彬韩然吴慧文吕庆真国网山东省电力公司青岛供电公司山东省青岛市266002 山东大学信息科学与工程学院山东省青岛市266237

随着智能电网系统中移动终端的增加,其对传输数据低时延、大带宽和高可靠性的需求尤为紧迫。为解决其中无线传输、信息处理和可靠性不足等问题,文章采用“切片分组网(sliced packet network,SPN)+可信无线局域网(wireless local area ne... 详细信息

随着智能电网系统中移动终端的增加,其对传输数据低时延、大带宽和高可靠性的需求尤为紧迫。为解决其中无线传输、信息处理和可靠性不足等问题,文章采用“切片分组网(sliced packet network,SPN)+可信无线局域网(wireless local area network,WLAN)”通信新技术网络架构,建立多种移动终端设备安全无线传输和计算任务卸载的总时延优化卸载模型,提出一种基于交替优化技术的算法。仿真结果表明,该策略不仅保证设备安全高效地接入网络,还可显著降低传输时延,具有优异的成本效益。

关键词：智能电网移动边缘计算 SPN 可信WLAN 移动终端设备

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车内甲醛浓度及其动态分布数值仿真分析

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湖南大学学报（自然科学版） 2023年第6期50卷 61-69页

作者：何莉萍辛宇航夏凡杨金原江鑫湖南大学汽车车身先进设计制造国家重点实验室湖南长沙410082 湖南大学机械与运载工程学院湖南长沙410082

针对高污染、高危害的甲醛在乘用车内通风条件下的动态分布特征及规律的研究相对缺乏,应用计算流体动力学(Computational Fluid Dynamics,CFD)理论和Fluent软件建立车内甲醛浓度及其分布数值仿真模型,并验证其可靠性.以温度、通风速率... 详细信息

针对高污染、高危害的甲醛在乘用车内通风条件下的动态分布特征及规律的研究相对缺乏,应用计算流体动力学(Computational Fluid Dynamics,CFD)理论和Fluent软件建立车内甲醛浓度及其分布数值仿真模型,并验证其可靠性.以温度、通风速率和通风模式因素为变量,基于车内空气流场分析,率先研究乘用车内甲醛质量浓度分布及其动态变化规律,首次系统地探讨温度、通风速率、通风模式对驾驶员和乘员呼吸关键点位甲醛质量浓度分布及其变化规律.结果表明,温度对车内甲醛质量浓度影响显著;0.5 m/s和4.0 m/s通风速率下甲醛浓度由于涡旋流场而分别呈现“双曲线”和“驼峰”型分布特征.关键点位驾驶员呼吸位置的甲醛浓度随通风速率增加而增加,当通风速率≤1.6 m/s时,增长速率为16.5%;当通风速率>1.6 m/s后,增长速率为3.6%;整车检测点的甲醛浓度随通风速率增加呈线性增长,增长率约为10.8%.车内后排空间甲醛浓度高于前排空间.

关键词：数值分析空气质量甲醛浓度及动态分布温度通风速率通风模式

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数智技术介入下的紫砂器形态再设计

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南京艺术学院学报（美术与设计） 2024年第3期 92-97,I0003页

作者：王欣张雨航南京艺术学院设计学院江苏南京210013 无锡供春人工智能科技有限公司江苏宜兴214200

本文探讨了数字智能技术在紫砂器设计和制作中的融合及其对传统手工艺和文化传承的影响。强调了这些技术在适应现代市场需求、提升设计创新与效率方面的重要性。同时,探讨了如何在保持传统工艺精粹的同时,融入现代技术。最后通过实践案... 详细信息

本文探讨了数字智能技术在紫砂器设计和制作中的融合及其对传统手工艺和文化传承的影响。强调了这些技术在适应现代市场需求、提升设计创新与效率方面的重要性。同时,探讨了如何在保持传统工艺精粹的同时,融入现代技术。最后通过实践案例,分析了数智技术在紫砂器设计中的具体应用以及它与传统手工艺之间的互动关系。

关键词：数智技术紫砂器设计创新

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数据主导逻辑驱动传统行业打造新质生产力的过程机制研究

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科研管理 2024年第8期45卷 22-31页

作者：高昕程露康宇航大连海事大学航运经济与管理学院辽宁大连116026 中国大连高级经理学院辽宁大连116086

高质量发展背景下,诸多传统行业都亟待通过数实融合打造新质生产力以推动旧有增长方式的转型升级。当前研究多为宏观层面的理论推演,较少从微观层面揭示如何在数实融合背景下跨越从传统生产力到新质生产力的跃迁鸿沟。本研究围绕鸭嘴兽... 详细信息

高质量发展背景下,诸多传统行业都亟待通过数实融合打造新质生产力以推动旧有增长方式的转型升级。当前研究多为宏观层面的理论推演,较少从微观层面揭示如何在数实融合背景下跨越从传统生产力到新质生产力的跃迁鸿沟。本研究围绕鸭嘴兽物流科技平台展开了嵌入式单案例研究,探讨了其在运力供给端和需求端同步颠覆传统集装箱陆运模式,以实现传统生产力更新的微观过程机制。研究发现:(1)传统行业供需端协同转型升级以颠覆旧有增长模式,呈现出“数字技术采纳-数据主导逻辑-传统生产力更新”的动态演进过程;(2)针对传统行业供需端发展瓶颈,在通用性数字技术嵌入和专属性数字技术研发双重维度下进行数字技术采纳,是促进传统生产力向新质生产力迈进的刺激因素与触发器;(3)数据驱动下的流程再造与功能联动共同构成的数据主导逻辑,则是推动企业从战略认知层面形成数据流和业务流有机联动的使能器。研究结论为传统行业突破传统增长瓶颈与发展痼疾提供了“供-需”互促的新质生产力发展思路参考。

关键词：数据主导逻辑数字技术采纳新质生产力

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