锂金属负极和碳酸酯类电解液之间不稳定的界面是限制高比能锂金属电池循环寿命的关键挑战.本文使用含苯环的双酚A乙氧基化物二甲基丙烯酸酯(BAED)交联剂调节聚(丙烯酸六氟丁酯)(PHFBA),设计了一种弹性人造固体电解质中间相(RASEI)来解决这个问题.刚性BAED分子可以对柔性PHBA基体进行调控,实现从600%伸长率到90%压缩率的卓越回弹性,并具有超过2 MPa的高杨氏模量.RASEI可以适应锂金属较大的体积变化,并确保电池运行过程中锂金属与RASEI之间的紧密接触,促进均匀的锂沉积并减少副反应.因此,经过RASEI修饰的Li‖Li对称电池可以在1 mA cm^(-2)和1 mAh cm^(-2)下实现超过500小时的长期循环.对循环后锂金属进行测试分析表明锂枝晶的生长得到了有效的抑制.此外,搭配20 mg cm^(-2)高阴极负载的NCM811软包电池在1 C下,经过200次循环后容量保持率超过85%.
Hero drafting for multiplayer online arena (MOBA) games is crucial because drafting directly affects the outcome of a match. Both sides take turns to "ban"/"pick" a hero from a roster of approximat...
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Traditional federated learning algorithms often face issues such as uneven data distribution and varying data quality, which can adversely affect model accuracy and convergence speed. To address these problems, we pro...
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Objective This study aimed to examine the associations of daytime napping with incident risks of cardiovascular diseases(CVDs)and hypertension(HTN).Methods Data for napping and CVD outcomes in 25 provinces were collec...
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Objective This study aimed to examine the associations of daytime napping with incident risks of cardiovascular diseases(CVDs)and hypertension(HTN).Methods Data for napping and CVD outcomes in 25 provinces were collected from baseline(2010)and three waves of follow-up(2012-2017)investigations of the China Family Panel *** frailty models with random intercepts for the surveyed provinces were used to assess the longitudinal effects of daytime napping on CVD and *** Compared with non-nappers,30+min nappers had higher risks of CVD and HTN,while no significant associations were observed among<30 min *** risks among 30-to<60-min nappers increased by 22%[hazard ratio(HR)1.22,95% confidence interval(CI)1.08-1.39]for CVD and 21%(1.21,1.04-1.41)for HTN,respectively,with corresponding HRs of CVD and HTN of 1.27(1.09-1.47)and 1.38(1.16-1.65)among≥60 min ***-associated CVD risks varied by subgroups,with stronger associations in participants with lower body mass index(<24 kg/m^(2)),physically inactive persons,smokers,and participants with longer nighttime sleep(≥7 h/night).Significant effects of daytime napping were observed on rural and northern residents only,highlighting great regional variations in CVD risks associated with napping *** This cohort study revealed strong evidence that long daytime napping(≥30 min)is associated with an increased incidence of cardiovascular events.
In order to adapt to the vigorous development of the new economy characterized by new technologies, new industries and new models, there is an urgent need for a large number of emerging engineering education applicati...
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Natural language processing technology is an important research area in artificial intelligence which occupies a pivotal position in deep learning. This paper describes in detail the research of NLP based on Transform...
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In this study, alumina bubbles and micro-pore-forming agents were used for the lightweight design of Al2O3-MgO castables. The microstructure, phase composition, and physical properties of the castables were analyzed. ...
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In this paper,we designed and prepared the polymeric carbon nitride-supported tungsten(W@PCN)*** were employed as the catalysts for photocatalytic oxidation of aniline in *** the process,H_(2)O_(2)was initially genera...
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In this paper,we designed and prepared the polymeric carbon nitride-supported tungsten(W@PCN)*** were employed as the catalysts for photocatalytic oxidation of aniline in *** the process,H_(2)O_(2)was initially generated via the PCN-catalyzed *** by supported tungsten,aniline was oxidized by the in situ generated H_(2)O_(2)to obtain less toxicpoly aniline.
The application of land cover classification is very extensive, it can be used in land resources management, urban planning, agricultural and other fields. The multi-scale variation of targets in high-resolution remot...
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Experimental teaching is an important part of the C programming language course, which aims to cultivate students’ Computational thinking ability, problem solving ability and programming ability. However, the existin...
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