Abstract The layered nickel‐rich cathode materials are considered as promising for lithium‐ion batteries (LIBs) due to their high reversible capacity and low cost. However, several significant challenges, such the unstable powder properties limited electrode density, hindered practical application of with nickel content over 80%. Herein, important stability issues in‐depth understanding on basis industrial fabrication condition commercialization reviewed. A variety factors threatening...

Battery industries and research groups are further investigating LiCoO 2 to unravel the capacity at high‐voltages (>4.3 vs Li). The trends towards surface modification of stabilize it structurally chemically. In this report, recent progress in surface‐coating materials i.e., single‐element, binary, ternary hybrid‐materials etc. their coating methods illustrated. Further, importance evaluating surface‐coated Li‐ion full‐cell is highlighted with our results. Mg,P‐coated full‐cells exhibit...

An epitaxy layer on the LiNi_0.8Co_0.1Mn_0.1O₂ cathode significantly suppressed nickel-ion crossover, which enhanced structural/electrochemical stability at high temperature.

Conventional nickel-rich cathode materials suffer from reaction heterogeneity during electrochemical cycling particularly at high temperature, because of their polycrystalline properties and secondary particle morphology. Despite intensive research on the morphological evolution materials, its practical investigation electrode cell levels is still rarely discussed. Herein, an intrinsic limitation in high-energy full-cells discovered under industrial electrode-fabrication conditions. Owing to...

Abstract A practical solution is presented to increase the stability of 4.45 V LiCoO 2 via high‐temperature Ni doping, without adding any extra synthesis step or cost. How a putative uniform bulk doping with highly soluble elements can profoundly modify surface chemistry and structural identified from systematic chemical microstructural analyses. This modification has an electronic origin, where surface‐oxygen‐loss induced Co reduction that favors tetrahedral site causes damaging spinel...

Formation of a glue-nanofiller layer between grains, consisting middle-temperature spinel-like Lix CoO2 phase, reinforces the strength incoherent interfacial binding anisotropically oriented grains by enhancing face-to-face adhesion strength. The cathode treated with glue-layer exhibits steady cycling performance at both room-temperature and 60 °C. These results represent step forward in advanced lithium-ion batteries via simple coating.

Abstract The layered nickel‐rich materials have attracted extensive attention as a promising cathode candidate for high‐energy density lithium‐ion batteries (LIBs). However, they been suffering from inherent structural and electrochemical degradation including severe capacity loss at high electrode loading (>3.0 g cm −3 ) temperature cycling (>60 °C). In this study, an effective viable way of creating artificial solid–electrolyte interphase (SEI) layer on the surface by simple,...

A high-energy nickel-rich cathode with primary particle concentration gradient is developed via a simple, one-step process involving sacrificial polymeric-bead cluster. The particles' gradients and internal buffer space in the secondary particles are successfully formed without any surface coating reagents. It demonstrated that material has high specific capacity thermal stability. As service to our authors readers, this journal provides supporting information supplied by authors. Such...

Abstract After the research that shows Li 10 GeP 2 S 12 (LGPS)‐type sulfide solid electrolytes can reach high ionic conductivity at room temperature, have been intensively developed with regard to and mechanical properties. As a result, an increasing volume of has conducted employ all‐solid‐state lithium batteries in electric automobiles within next five years. To achieve this goal, it is important review over past decade, understand requirements for future necessary realize practical...

Open offices are cost-effective and continue to be popular. However, research shows that these environments, brimming with distractions sensory overload, frequently hamper productivity. Our investigates the use of virtual reality (VR) mitigate in an open office setting improve one's ability flow. In a lab study, 35 participants performed visual programming tasks four combinations physical (open or closed office) environments (beach office). While both preferred were flow more without VR,...

Abstract Highly deformable and advanced flexible lithium‐ion batteries (LIBs) are considered to be a promising power source for electronics. However, despite tremendous efforts achieve flexibility, battery performance still lags behind the commercial standards. Here, 3D interlocking LIB via one‐step patterning process of preassembled cell under industrial electrode fabrication conditions, satisfy viability, is demonstrated. The full‐cell with high loading level demonstrates excellent cycle...

In article number 1702028, Jaephil Cho, Minjoon Park and co-workers, review recent progress in nickel-rich cathode materials for industrial use, focusing on the material electrode designs terms of their commercialization lithium-ion batteries. Currently, low stability limited density are key challenges to overcome. this regard, authors provide innovative potential research directions, addressing current limitations practical use cathodes.

Abstract With increasing demands for high energy lithium‐ion batteries, layered nickel‐rich cathode materials have been considered as the most promising candidate due to their reversible capacity and low cost. Although some of with nickel contents ≦ 60 % were commercialized, there are tremendous obstacles further improvement electrochemical performance, which is strongly related unstable surface interfacial properties. In this regard, a specific review on chemistry between electrolyte during...

Abstract Identifying how spatially distributed information becomes integrated in the brain is essential to understanding higher cognitive functions. Previous computational and empirical studies suggest a significant influence of network structure on function. However, there have been few analytical approaches explain role shaping regional activities directionality patterns. In this study, methods are applied coupled oscillator model implemented inhomogeneous networks. We first derive...

Abstract Nickel‐rich materials, as a front‐running cathode for lithium‐ion batteries suffer from inherent degradation issues such inter/intragranular cracks and phase transition under the high‐current density condition. Although vigorous efforts have mitigated these current issues, practical applications are not successfully achieved due to material instability complex synthesis process. Herein, structurally stable, macrovoid‐containing, nickel‐rich is developed using an affordable,...

In this manuscript, we present a method for the direct calculation of an ambient dose equivalent (H*(10)) external gamma-ray exposure with energy range 40 keV to 2 MeV in electronic personal dosimeter (EPD). The designed EPD consists 3×3 mm2 PIN diode coupled 3×3×3 mm3 CsI (Tl) scintillator block. spectrum-to-dose conversion function (G(E)) estimating H*(10) was calculated by applying gradient-descent based on Monte-Carlo simulation. optimal parameters G(E) were found and from gamma spectra...

In recent years, around device input has emerged as a complement to standard touch input, albeit in limited tasks and contexts, such for item selection or map navigation. We push the boundaries interactions facilitate an entire smartphone application: browsing through large information lists make decision. To this end, we present AirPanes, novel technique that allows two-handed in-air interactions, conjointly with perform analytic tasks, making purchase AirPanes resolves inefficiencies of...

After the Fukushima accident in 2011, there has been increased public concern about radioactive contamination of water resources through fallout neighboring countries. However, is still no available initial response system that can promptly detect radionuclides. The purpose this research to develop most efficient gamma spectrometer monitor radionuclides an aquatic environment. We chose a thallium-doped sodium iodide (NaI(Tl)) scintillator readout with silicon photo multiplier (SiPM) due its...

People very often use mobile devices with one hand to free the second for other tasks. In such cases, thumb of holding device is only available input finger, making multi-touch interactions impossible. Complicating interaction further, screen area that can be reached while limited, which makes distant on-screen areas inaccessible. Motivated by emerging portable object tracking technologies, we explore how spatial mid-air thumb-gestures could potentially used in combination touch facilitate...