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Additives strategies to improving cycling stability of li metal batteries by modifying electrode electrolyte interphases

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Progress in Natural Science:Materials International 2024年第2期34卷 338-344页

作者： Yuan li Pengfei Huang Chunyu Cui Xiaoyuan Ma li Chen Zekun li linhai li Yuhong Tian School of Biological and Chemical Engineering Guangxi University of Science and Technology School of College of Chemistry and Chemical Engineering Hunan University Isky Future Energy Institute

li metal batteries（LMBs） have attracted much attention due to the ultra-high theoretical capacity of the li metal anode（LMA）.However,the uncontrollable dendrites growth and low coulombic efficiency hinder their practical ***,we explore 3,5-difluoropyridine（2F-BD） as a novel electrolyte additive to enable highperformance *** 2F-BD additive participates in and modifies the solvation structure of li ions by reducing the coordinated number of PF6-at the electrode surface,leading to the formation of a liF and li3N-rich solid electrolyte interphase（SEI）.The liF component increases the robustness of SEI and suppresses the formation of li dendrites,while the li3N component facilitates the transportation and reaction kinetics of li *** a result,the li‖li symmetric cell presents a stable cycling performance of up to 500 h at a current density of 1 mA *** coupling with liFePO4cathode,the obtained full cell achieves high specific capacities of 106.06 mA h g-1and 84.98 mA h g-1at 2.55 mA cm-2and 5.10 mA cm-2,respectively,and maintains a high capacity retention of84.0% after 1000 cycles at 0.13 mA cm-2,with an average cycling CE of 99.58%.

关键词： Electrolyte additive li dendrites li metal batteries liF and li3N-Rich electrode-electrolyte interphase liFePO4 cathode

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我国妇女体育社会组织的培育与扶植研究

体育科学 2022年第2期42卷 86-96,F0003页

作者：李敏李军言张大超河南大学体育学院河南开封475001 河南开封科技传媒学院河南开封475004

通过梳理我国社会组织、妇女体育相关政策内容等,审视当前我国妇女体育相关的社会组织发展现实状况,调研发达国家妇女体育社会组织的主要目标、组织架构及运行机制、资金来源、行动计划、志愿者团队建设、科学研究以及取得的成效等,结... 详细信息

通过梳理我国社会组织、妇女体育相关政策内容等,审视当前我国妇女体育相关的社会组织发展现实状况,调研发达国家妇女体育社会组织的主要目标、组织架构及运行机制、资金来源、行动计划、志愿者团队建设、科学研究以及取得的成效等,结合我国社会组织建设与管理的最新机制,对我国全国性妇女体育社会组织建设的必要性与可行性、政策与策略、组织结构体系构成以及运行模式和实现路径等进行系统研究。研究认为:(1)我国妇女体育社会组织的建设和发展处于起步阶段,存在承担社会服务的能力较弱、内部机构建设不完善和人员分工不明确等问题;(2)我国妇女体育社会组织建设的主要目标是营造促进妇女积极参与体育的和谐体育文化氛围,为妇女提供平等参与体育的机会以及提高妇女体育参与率与获得感等;(3)应制定全国性和地方性妇女体育社会组织建设的外部扶持政策,探索自下而上和自上而下建设我国妇女体育社会组织体系的两条路径;(4)应从组织内部机构设置、人力资源、财务运营、宣传联络、项目规划和科学研究等方面入手,构建完备的妇女体育社会组织内部机构体系和运行机制。

关键词：妇女体育社会组织政策机构建设

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Isolation and P-gps Gene Expression Analysis on Ivermectin-resistant Strain of Nematodirus oiratianus in Sheep

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Isolation and P-gps Gene Expression Analysis on Ivermectin-r...

Study on Polymorphisms of GluCl-gbr-2b and P-gp-9 Genes of Ivermectin Resistant Strains in Haemonchus contortus

2021中国畜牧兽医学会兽医寄生虫学分会第16次学术研讨会

作者： Penglong Wang Xiaoping Luo junyan li Yang liu Baihui Teng Qin Du Rui Wang Xiaoye Yang

Nematodirus is a common gastrointestinal nematode in *** the process of longterm use of anthelmintic control,some strains will develop the resistance,resulting in a series of problems,such as the decrease of drug ***,the study of drug resistance of Nematodirus is great significance for the prevention and treatment of gastrointestinal nematodes in *** present, there are relatively few studies on ivermectin resistance of ***,in this paper,the ivermectin-resistant strain of Nematodirus in sheep were studied on the isolation,identification,cultivation,drug resistance detection and drug resistance-related P-gps gene expression in Inner Mongolia.（1） A longitudinal epidemiological investigations were performed on the infection of Nematodirus in sheep from six pastures in Xilingol and Hulunbuir grasslands,Inner *** results showed that pastures of Xilingol Blue Banner,the average infection rates of Nematodirus in spring and in autumn were 58.5% and 56.3% respectively,and in Hulunbuir Xinbarhu Right Banner,they were 41.7% and 55.6%,*** analysis showed that there was no significant difference in the infection rate of Nematodirus between two areas before deworming in spring and in autumn.（2） Through a series of isolation methods,a field strain of Nematodirus was obtained,and was identified by the combination of traditional morphology and molecular *** results indicated that the species was Nematodirus oiratianus.（3） The larvae development conditions of isolated nematode strain were optimized by orthogonal experiment,and the larvae were cultured under different pH,temperature,osmotic pressure and light time,and the results showed that the optimum conditions for its development were pH 5.5,temperature 27℃,osmotic pressure 0 mOsm/kg,and all light during the whole culture period.（4） The resistance of the strain to ivermectin was detected by larval migration inhibition *** data showed that the

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Study on Polymorphisms of GluCl-gbr-2b and P-gp-9 Genes of I...

后疫情时期东北冰雪旅游产业差异化协同发展研究

2021中国畜牧兽医学会兽医寄生虫学分会第16次学术研讨会

作者： Qin Du Penglong Wang Xiaoping Luo junyan li Yang liu Baihui Teng Rui Wang Xiaoye Yang

The resistance of sheep gastrointestinal nematodes to anthelmintic drugs has become a common problem all over the world,among which the resistance of Haemonchus contortus to ivermectin is the most *** view of the need for the prevention and control of parasitic diseases in the production practice of sheep breeding industry,in this paper,the P-gp-9 gene and GluCl-gbr-2 b gene of native isolates of Haemonchus contortus were studied with international standard strains as control,in order to understand the mechanism of ivermectin *** results were as follows:The sequences of GluCl-gbr-2 b gene fragments of Haemonchus contortus were compared and analyzed by MEGA5.1 biological software,and it was found that 20 bases of GluCl-gbr-2 b gene fragments of international standard drug-resistant strain Hc-R and local drug-resistant isolates WSHc-001,WSHc-003 and WSHc-138 were common mutation points with international standard sensitive strain as ***,when the isolated sensitive strain YCHc-022 was used as control,the GluCl-gbr-2 b gene fragments of Hc-R,WSHc-001,WSHc-003 and WSHc-138 only had a common mutation at position 422,indicating that the resistance of Haemonchus contortus to ivermectin may be associated with a mutation at a base site on the GluCl-gbr-2 b gene fragment,and its nucleotide polymorphism may be used as a potential molecule markers for the detection of drug *** comparing and analyzing the ORF sequence of P-gp-9 gene,it was found that the ORF sequence of international standard sensitive strain Hc-S was identical with that of isolated sensitive strain YCHc-022,and the ORF sequence of international standard drug resistant strain Hc-R was also consistent with that of WSHc-001,WSHc-003 and ***,compared with the sensitive strain,the ORF nucleotide sequence of the P-gp-9 gene of the resistant strain mutated from CCA to CTA,and amino acid from proline to leucine at the 89 th *** the same time,the polymorphism of t

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沈阳体育学院学报 2020年第3期39卷 1-9页

作者：李军岩刘颖沈阳体育学院管理与新闻传播学院辽宁沈阳110102 沈阳体育学院体育社会科学研究中心辽宁沈阳110102

差异化协同发展成为后疫情时期东北冰雪旅游产业高质量发展的优选之路。运用文献资料、逻辑分析等方法,在经典的差异化和协同理论阐释基础上,解析东北冰雪旅游产业差异化协同发展的逻辑:东北要素禀赋的比较优势推动冰雪旅游产业差异化... 详细信息

差异化协同发展成为后疫情时期东北冰雪旅游产业高质量发展的优选之路。运用文献资料、逻辑分析等方法,在经典的差异化和协同理论阐释基础上,解析东北冰雪旅游产业差异化协同发展的逻辑:东北要素禀赋的比较优势推动冰雪旅游产业差异化发展、东北条件基础的合作优势推动冰雪旅游产业协同发展、差异化与协同互动成为东北冰雪旅游高质量发展内生动力等;东北冰雪旅游产业存在的问题:差异化不明显导致东北冰雪旅游产业比较优势难以发挥、协同不充分导致东北冰雪旅游产业合作优势难以彰显、差异化与协同互动不足导致东北冰雪旅游产业发展动力难以生成等。提出发展路径:通过打造差异化发挥东北冰雪旅游产业发展的比较优势,通过建构协同模式彰显东北冰雪旅游产业发展的合作优势,通过推动差异化与协同互动激活东北冰雪旅游产业发展的内生动力。

关键词：冰雪旅游产业差异化协同发展后疫情时期东北

Leaching kinetics of fluorine during the aluminum removal from spent li-ion battery cathode materials

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Journal of Environmental Sciences 2024年第4期138卷 312-325页

作者： Shengjie li Jianxin Zhu Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

The high content of aluminum(Al)impurity in the recycled cathode powder seriously affects the extraction efficiency of Nickel,Cobalt,Manganese,and lithium resources and the actual commercial value of recycled materials,so Al removal is crucially important to conform to the industrial standard of spent li-ion battery cathode *** this work,we systematically investigated the leaching process and optimum conditions associated with Al removal from the cathode powder materials collected in a wet cathode-powder peeling and recycling production line of spent li-ion batteries(liBs).Moreover,we specifically studied the leaching of fluorine(F)synergistically happened along with the removal process of Al,which was not concerned about in other studies,but one of the key factors affecting pollution prevention in the recovery *** mechanism of the whole process including the leaching of Al and F from the cathode powder was indicated by using NMR,FTIR,and XPS,and a defluoridation process was preliminarily investigated in this *** leaching kinetics of Al could be successfully described by the shrinking core model,controlled by the diffusion process and the activation energy was 11.14 kJ/***,the leaching of F was attributed to the dissolution of liPF6and decomposition of PVDF,and the kinetics associated was described by Avrami *** interaction of Al and F is advantageous to realize the defluoridation to some *** is expected that our investigation will provide theoretical support for the large-scale recycling of spent liBs.

关键词： Al removal F leaching Cathode powder Heating alkali leaching Leaching kinetics

新闻报道倾向性对上市公司股东利益的影响:媒体互动的中介效应

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系统工程理论与实践 2018年第12期38卷 3037-3049页

作者：李君艳田高良赵宏祥司毅西安交通大学管理学院西安710049 西安财经学院行知学院西安710000 西安交通大学管理教学实验中心(国家级实验教学示范中心) 西安710049 厦门大学管理学院厦门361005

针对近些年上市公司从“被”媒体关注到战略性“媒体倾斜”转变中媒体的公司治理动因分析不足的问题,提出了结合公司治理、信息经济学理论及媒体互动中介效应分析新闻报道倾向性对股东利益影响的内在关联性的新方法.基于中国A股上市公... 详细信息

针对近些年上市公司从“被”媒体关注到战略性“媒体倾斜”转变中媒体的公司治理动因分析不足的问题,提出了结合公司治理、信息经济学理论及媒体互动中介效应分析新闻报道倾向性对股东利益影响的内在关联性的新方法.基于中国A股上市公司财务和媒体相关数据,采用单变量多因素耦合方法,分析了倾向性报道对公司股东每股收益、净资产收益率与市净率等因素的经济压力,揭示了上市公司“媒体关联”的真正动机.研究表明:1)高强度的新闻报道倾向性有助于媒体信息中介效应的发挥,从而改善股东的利益及其与上市公司的关系;2)媒体激励作用在积极的、正面的媒体报道倾向样本中更明显;3)上市公司所在地区的高市场化程度会强化两者间的关系.在控制了宏观环境行政处罚变量后,实证结果依然显著.文章加深了对媒体的公司治理效应和关联动机的认知,有助于上市公司价值的实现及其与主要利益相关者关系的改善.

关键词：报道倾向性信息不对称股东利益媒体互动中介效应

辽宁体育产业双核心区域要素禀赋的比较优势分析及其区域布局的设计构想

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沈阳体育学院学报 2014年第6期33卷 57-61页

作者：李军岩刘文境沈阳体育学院体育社会科学研究中心辽宁沈阳110102 湖南大学体育学院湖南长沙410008

区域布局是目前辽宁体育产业发展的关键问题之一。依据辽宁体育产业发展目标,从比较优势的视角系统厘清沈阳和大连两大核心区域要素禀赋差别,以此为基础提出辽宁体育产业双核心区域布局的设计构想,并辅以相应的保障措施。以期为辽宁体... 详细信息

区域布局是目前辽宁体育产业发展的关键问题之一。依据辽宁体育产业发展目标,从比较优势的视角系统厘清沈阳和大连两大核心区域要素禀赋差别,以此为基础提出辽宁体育产业双核心区域布局的设计构想,并辅以相应的保障措施。以期为辽宁体育产业合理区域布局提供一些借鉴与参考。

关键词：体育产业双核心区域布局要素禀赋比较优势

粪菌移植缓解放射对小鼠海马神经抑制作用的初步研究

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中华放射肿瘤学杂志 2023年第2期32卷 152-158页

作者：李俊彦张军军田野苏州大学附属第二医院放射治疗科苏州大学放射肿瘤治疗学研究所苏州市肿瘤放射治疗学重点实验室苏州215004

目的研究全脑照射(WBI)及粪便菌群移植(FMT)对小鼠海马神经发生及肠道菌群组成的影响。方法无特定病原体级雄性ICR小鼠40只(8周龄,30 g)以简单随机抽样法分为对照组(C组)、照射组(R组)、对照+FMT组(C+FMT组)、照射+FMT组(R+FMT组),每组1... 详细信息

目的研究全脑照射(WBI)及粪便菌群移植(FMT)对小鼠海马神经发生及肠道菌群组成的影响。方法无特定病原体级雄性ICR小鼠40只(8周龄,30 g)以简单随机抽样法分为对照组(C组)、照射组(R组)、对照+FMT组(C+FMT组)、照射+FMT组(R+FMT组),每组10只。单次剂量10 Gy WBI造模后,C组、R组予磷酸盐缓冲溶液灌胃,C+FMT组、R+FMT组予正常小鼠粪菌悬液灌胃14 d。通过16S rRNA测序、BrdU^(+)/NeuN^(+)免疫荧光染色检测粪便菌群组成、海马神经发生的变化。结果WBI和FMT对小鼠存活率和体重无影响。WBI诱导了海马神经发生抑制及粪便菌群失调,如拟杆菌科、瘤胃菌科分别增加28.6%、102.9%,乳杆菌科下降70.6%(P<0.05)。FMT调节了粪便菌群丰度,如肠杆菌科下降65.1%(P=0.028),而乳杆菌科增加58.2%(P=0.015),并部分缓解了海马神经发生抑制。结论这项初步研究提示FMT缓解了WBI诱导的小鼠海马神经发生抑制及肠道菌群组成紊乱失调。直接作用于小鼠全脑的电离辐射间接扰乱了肠道菌群的结构,而肠道菌群组成的变化也反过来影响了小鼠大脑海马神经发生的程度,肠道菌群与大脑之间存在双向作用。

关键词：粪便菌群移植海马神经发生全脑照射肠道菌群