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Enhancement of electrochemical performance in lithium-ion battery via tantalum oxide coated nickel-rich cathode materials

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Chinese Physics B 2022年第5期31卷 683-690页

作者： Fengling Chen jiannan lin Yifan Chen Binbin Dong Chujun Yin Siying Tian Dapeng Sun Jing Xie Zhenyu Zhang Hong Li Chaobo Li Institute of Microelectronics Chinese Academy of SciencesBeiing 100029China University of Chinese Academy of Sciences Beijing 100049China Institute of Physics Chinese Academy of SciencesBeijing 100190China Beijing Welion New Energy Technology Co. LtdBeijing 102402China

Nickel-rich cathode materials are increasingly being applied in commercial lithium-ion batteries to realize higher specific capacity as well as improved energy ***,low structural stability and rapid capacity decay at high voltage and temperature hinder their rapid large-scale ***,a wet chemical method followed by a post-annealing process is utilized to realize the surface coating of tantalum oxide on lini_(0.88)Mn_(0.03)Co_(0.09)O_(2),and the electrochemical performance is *** modified Li Ni_(0.88)Mn_(0.03)Co_(0.09)O_(2)displays an initial discharge capacity of~233 m Ah/g at0.1 C and 174 m Ah/g at 1 C after 150 cycles in the voltage range of 3.0 V–4.4 V at 45℃,and it also exhibits an enhanced rate capability with 118 m Ah/g at 5 *** excellent performance is due to the introduction of tantalum oxide as a stable and functional layer to protect the surface of lini_(0.88)Mn_(0.03)Co_(0.09)O_(2),and the surface side reactions and cation mixing are suppressed at the same time without hampering the charge transfer kinetics.

关键词： lini0.88Mn0.03Co0.09O2 tantalum oxide surface coating lithium-ion battery cathode material

Probing the improved stability for high nickel cathode via dual-element modification in lithium-ion

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Chinese Physics B 2022年第7期31卷 586-594页

作者： Fengling Chen Chaozhi Zeng Chun Huang jiannan lin Yifan Chen Binbin Dong Chujun Yin Siying Tian Dapeng Sun Zhenyu Zhang Hong Li Chaobo Li Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Beijing Welion New Energy Technology Co. LtdBeijing 102402China Institute of Physics Chinese Academy of SciencesBeijing 100190China

One of the major hurdles of nickel-rich cathode materials for lithium-ion batteries is the low cycling stability,especially at high temperature and high voltage,originating from severe structural degradation,which makes this class of cathode less ***,we compared the effect of single and dual ions on electrochemical performance of high nickel(lini_(0.88)Mn_(0.03)Co_(0.09)O_(2),NMC)cathode material in different temperatures and voltage *** addition of a few amounts of tantalum(0.2 wt%)and boron(0.05 wt%)lead to improved electrochemical *** co-modified Li Ni_(0.88)Mn_(0.03)Co_(0.09)O_(2)displays an initial discharge capacity of 234.9 m Ah/g at 0.1 C and retained 208 m Ah/g at 1 C after 100 cycles at 45℃,which corresponds to a capacity retention of 88.5%,compared to the initial discharge capacity of234.1 m Ah/g and retained capacity of 200.5 m Ah/g(85.6%).The enhanced capacity retention is attributed to the synergetic effect of foreign elements by acting as a surface structural stabilizer without sacrificing specific capacity.

关键词： lini_(0.88)Mn_(0.03)Co_(0.09)O_(2) lithium-ion battery cathode material modification

Influence of Homogenization Techniques on the Biomass-adsorbent Interaction During Ion-exchange Expanded Bed Adsorption: Zeta Potential Study

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Influence of Homogenization Techniques on the Biomass-adsorb...

推动福建音乐创作的重要平台——礼赞新中国70华诞暨第九届“京、沪、闽”现代音乐创作研讨会述评

第四届中美化学工程会议和第三届中日化工研讨会合并的三边化学工程大会

作者： jiannan Dong, Dongqiang lin, Shanjing Yao Zhejiang University, China

Expanded bed adsorption (EBA) is a novel primary recovery technology allowing the adsorption of target proteins directly from unclarified feedstock. Ion-exchange adsorbents are most extensively used due to high capacity and reasonable cost. However, it was found that during ion-exchange EBA the biomass (cells or cell debris) in the feedstock may adhere to the adsorbent, especially to the anion exchanger, which resulted in bad bed stability and low adsorption capacity. Earlier studies revealed that electrostatic forces between biomass and adsorbent were responsible for the adhesion. The adjustment of conductivity or pH could be used to reduce the electrostatic interaction (lin et al., 2001). But the range of control is limited due to the fact that the efficient adsorption of target products always requires specific pH and conductivity environment. It has been found that the homogenization could also weaken the biomass-adsorbent interactions, which seems to be a universal approach because it never conflict with the adsorption conditions. In the present work we thus carried out detailed investigations on the impact of two normal homogenization techniques (sonication and high pressure homogenization with French Press) on the biomass-adsorbent interactions. In order to gain a deeper insight into the mechanisms behind biomass-adsorbent electrostatic interactions, the concept of zeta potential based on colloid science (Hunter, 1981) was introduced to find out the proper control parameter for EBA process design.

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人民音乐 2020年第3期 20-21页

作者：林见南福建师范大学音乐学院

2019年12月13日至15日,礼赞新中国70华诞暨第九届"京、沪、闽"现代音乐创作研讨会在福建师范大学音乐学院隆重召开。会议由福建师范大学音乐学院与福建省艺术教育协会共同主办,来自中国艺术研究院、中央音乐学院、中央芭蕾舞团、首都师... 详细信息

2019年12月13日至15日,礼赞新中国70华诞暨第九届"京、沪、闽"现代音乐创作研讨会在福建师范大学音乐学院隆重召开。会议由福建师范大学音乐学院与福建省艺术教育协会共同主办,来自中国艺术研究院、中央音乐学院、中央芭蕾舞团、首都师范大学、上海音乐学院、上海芭蕾舞团、上海师范大学、《人民音乐》杂志、福建省歌舞剧院、福建省文联、福建省艺术研究院、福建省音乐家协会、华侨大学、福建师范大学的专家、学者共四十多人出席了研讨会。

关键词：福建师范大学首都师范大学上海芭蕾舞团中国艺术研究院中央芭蕾舞团华侨大学上海音乐学院中央音乐学院

病榻旁的执着与坚守——郭祖荣住院七年音乐创作侧记

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人民音乐 2024年第10期 12-15页

作者：林见南闽江学院蔡继琨音乐学院

每次到医院探望郭祖荣老师,笔者都会习惯性地问一句:“最近在写什么曲子?”他则每次都笑眯眯地从床头小书桌上,拿过一叠刚刚完成的手稿递给我。郭祖荣老师身边的晚辈可能早已对这样的场景习以为常,但若我们稍稍拉高视角,回顾他的创作历... 详细信息

每次到医院探望郭祖荣老师,笔者都会习惯性地问一句:“最近在写什么曲子?”他则每次都笑眯眯地从床头小书桌上,拿过一叠刚刚完成的手稿递给我。郭祖荣老师身边的晚辈可能早已对这样的场景习以为常,但若我们稍稍拉高视角,回顾他的创作历程与成就,就会惊叹于他朴实的外表和淡然的言语中,蕴藏着多么震撼人心的精神力量。

关键词：音乐创作精神力量创作历程老师习惯性执着习以为常

Narrow-bandgap Nb_2O_5 nanowires with enclosed pores as high-performance photocatalyst

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Science China Materials 2019年第2期62卷 203-210页

作者： Ying Zhang Hu Zhao Xiaofei Zhao jiannan lin Na Li Ziyang Huo Zifeng Yan Miao Zhang Shi Hu State Key Laboratory for Heavy Oil Processing PetroChina Key Laboratory of Catalysis China University of PetroleumQingdao Department of Chemistry School of Science Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University Queensland Micro- and Nanotechnology Centre Griffith University Chemical Science Division Department of Chemistry University of CaliforniaBerkeley

Porous niobium oxide nanowires synthesized via a solvothermal method exhibited decreased bandgap,en- hanced light absorption and reduced charge-recombination *** porous Nb2O5 nanowires showed increased performance for the photocatalytic H2 evolution and photo- degradation of rhodamine B,as compared to their solid counterparts,which could be ascribed to the peculiar porous nanostructure.

关键词： niobium oxide nanowires photocatalysis

A common variant in AAK1 reduces risk of noise-induced hearing loss

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National Science Review 2023年第7期10卷 77-80页

作者： Qixuan Wang Xueling Wang Tao Yang Lu Yang Huihui Liu Yihang Zheng Guixian Jiang Hongchao Liu Chenhui Huang Juan Chen Zhentao Wang Zhaoyan Wang Wei Zhao jiannan lin Xuejie Zhang Junbo Shi Kun Han Xingyu Le Yan Ren Yun Li Yingying Hong Wentao Shi Dongqi Cui Minfei Qian Jun Xu Xiaofei Zheng Yunge Gao Chen Li James lin Zhiwu Huang Hao Wu Department of Otolaryngology-Head and Neck Surgery Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Ear Institute Shanghai Jiao Tong University School of Medicine Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases Biobank Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai Institute of Precision Medicine Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine The Core Laboratory in the Medical Center of Clinical Research Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Clinical Research Center Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Network and Information Center Shanghai Jiao Tong University College of Health Science and Technology Shanghai Jiao Tong University School of Medicine

Noise-induced hearing loss (NIHL) is one of the most common types of hearing loss and contributes to significant morbidity worldwide,as well as being the major cause of age-related hearing loss and *** World Health Organization (WHO) estimates that 10%of the world’s population is exposed to sound levels that could potentially cause NIHL[1].It has been widely accepted that NIHL is a multifactorial genetic disorder with estimated heritability of 36%to 40%[2].Ideally,identification of the modifying genetic variants would help protect individuals at high risk of *** decades,many geneticists have searched for genes that either predispose or protect from *** r,the majority of genetic studies for NIHL were conducted in independent known candidate genes [3].

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新时代植树造林应正确处理好若干辩证关系

国家林业和草原局管理干部学院学报 2024年第3期23卷 28-35页

作者：林雪林建楠福建农林大学福建福州350002 大田县公安局福建三明366100

植树造林是建设美丽中国,参与生态环境治理的重要举措。当前,全球生态系统面临的风险与不确定性显著增加,我国经济社会发展对植树造林的需求也日益多元化。面对新时代新挑战,植树造林应正确处理好绿水青山与金山银山、量与质、社会获益... 详细信息

植树造林是建设美丽中国,参与生态环境治理的重要举措。当前,全球生态系统面临的风险与不确定性显著增加,我国经济社会发展对植树造林的需求也日益多元化。面对新时代新挑战,植树造林应正确处理好绿水青山与金山银山、量与质、社会获益与造林者利益、普遍规律与因地制宜、生态安全与粮食安全几对辩证关系。

关键词：植树造林辩证关系新时代

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基于图像处理的烟支污点面积测量方法

烟草科技 2014年第1期47卷 21-25页

作者：刘勇张文夏营威董浩林建南张龙中国科学院安徽光学精密机械研究所合肥市蜀山湖路350号230031 中国烟草总公司郑州烟草研究院浙江中烟工业有限责任公司技术中心

针对目前烟支污点检测人工测量的各种问题,提出一种基于图像处理技术的烟支污点面积测量方法。该方法以机器视觉系统为硬件平台,首先采用柱面模型进行图像转换,建立图像坐标系与展开坐标系的映射关系;然后利用正切函数对图像作增强处理... 详细信息

针对目前烟支污点检测人工测量的各种问题,提出一种基于图像处理技术的烟支污点面积测量方法。该方法以机器视觉系统为硬件平台,首先采用柱面模型进行图像转换,建立图像坐标系与展开坐标系的映射关系;然后利用正切函数对图像作增强处理,增强目标与背景的对比度;最后通过改进的区域生长法分割污点,排除烟支周期纹理和颜色分布的干扰。实验结果表明:该方法测量效率高,稳定性强,精度达到0.03 mm2,能够满足烟支污点的检测需求。

关键词：图像处理烟支污点机器视觉柱面模型正切函数区域生长法