Ordered Lithium-Ion Conductive Interphase with Gradient Desolvation Effects for Fast-Charging Lithium Metal Batteries

Efficient desolvation and fast lithium ion (Li+) transport are key factors for fast-charging Li metal batteries (LMBs). Here, we report a self-assembled interphase (SAI) with ordered Li+ transport pathways to enable high Li+ conductivity and fast Li+ desolvation for fast-charging LMBs. A self-assembled structure originating from the intermolecular π–π stacking endows SAI with ordered Li+ transport pathways. The regular molecular stacking and a gradient distribution of functional groups of SAI contribute to a spatially confined gradient desolvation of Li+. Thereby, a stable Li metal anode (LMA) with durable solid-electrolyte interphase, accelerated Li+ transfer, and homogeneous Li plating/stripping is achieved at high rates. A full-cell battery of SAI protected LMA|LiNi0.8Co0.1Mn0.1O2 delivers a high capacity of 147 mAh g–1 with an improved capacity retention for 500 cycles at 3 C (1 C = 210 mA g–1), and the full cell can deliver over 71% of its capacity in 12 min

Ordered Lithium-Ion Conductive Interphase with Gradient Desolvation Effects for Fast-Charging Lithium Metal Batteries

Efficient desolvation and fast lithium ion (Li+) transport are key factors for fast-charging Li metal batteries (LMBs). Here, we report a self-assembled interphase (SAI) with ordered Li+ transport pathways to enable high Li+ conductivity and fast Li+ desolvation for fast-charging LMBs. A self-assembled structure originating from the intermolecular π–π stacking endows SAI with ordered Li+ transport pathways. The regular molecular stacking and a gradient distribution of functional groups of SAI contribute to a spatially confined gradient desolvation of Li+. Thereby, a stable Li metal anode (LMA) with durable solid-electrolyte interphase, accelerated Li+ transfer, and homogeneous Li plating/stripping is achieved at high rates. A full-cell battery of SAI protected LMA|LiNi0.8Co0.1Mn0.1O2 delivers a high capacity of 147 mAh g–1 with an improved capacity retention for 500 cycles at 3 C (1 C = 210 mA g–1), and the full cell can deliver over 71% of its capacity in 12 min

Ordered Lithium-Ion Conductive Interphase with Gradient Desolvation Effects for Fast-Charging Lithium Metal Batteries

Efficient desolvation and fast lithium ion (Li+) transport are key factors for fast-charging Li metal batteries (LMBs). Here, we report a self-assembled interphase (SAI) with ordered Li+ transport pathways to enable high Li+ conductivity and fast Li+ desolvation for fast-charging LMBs. A self-assembled structure originating from the intermolecular π–π stacking endows SAI with ordered Li+ transport pathways. The regular molecular stacking and a gradient distribution of functional groups of SAI contribute to a spatially confined gradient desolvation of Li+. Thereby, a stable Li metal anode (LMA) with durable solid-electrolyte interphase, accelerated Li+ transfer, and homogeneous Li plating/stripping is achieved at high rates. A full-cell battery of SAI protected LMA|LiNi0.8Co0.1Mn0.1O2 delivers a high capacity of 147 mAh g–1 with an improved capacity retention for 500 cycles at 3 C (1 C = 210 mA g–1), and the full cell can deliver over 71% of its capacity in 12 min

Ordered Lithium-Ion Conductive Interphase with Gradient Desolvation Effects for Fast-Charging Lithium Metal Batteries

Efficient desolvation and fast lithium ion (Li+) transport are key factors for fast-charging Li metal batteries (LMBs). Here, we report a self-assembled interphase (SAI) with ordered Li+ transport pathways to enable high Li+ conductivity and fast Li+ desolvation for fast-charging LMBs. A self-assembled structure originating from the intermolecular π–π stacking endows SAI with ordered Li+ transport pathways. The regular molecular stacking and a gradient distribution of functional groups of SAI contribute to a spatially confined gradient desolvation of Li+. Thereby, a stable Li metal anode (LMA) with durable solid-electrolyte interphase, accelerated Li+ transfer, and homogeneous Li plating/stripping is achieved at high rates. A full-cell battery of SAI protected LMA|LiNi0.8Co0.1Mn0.1O2 delivers a high capacity of 147 mAh g–1 with an improved capacity retention for 500 cycles at 3 C (1 C = 210 mA g–1), and the full cell can deliver over 71% of its capacity in 12 min

Ordered Lithium-Ion Conductive Interphase with Gradient Desolvation Effects for Fast-Charging Lithium Metal Batteries

Efficient desolvation and fast lithium ion (Li+) transport are key factors for fast-charging Li metal batteries (LMBs). Here, we report a self-assembled interphase (SAI) with ordered Li+ transport pathways to enable high Li+ conductivity and fast Li+ desolvation for fast-charging LMBs. A self-assembled structure originating from the intermolecular π–π stacking endows SAI with ordered Li+ transport pathways. The regular molecular stacking and a gradient distribution of functional groups of SAI contribute to a spatially confined gradient desolvation of Li+. Thereby, a stable Li metal anode (LMA) with durable solid-electrolyte interphase, accelerated Li+ transfer, and homogeneous Li plating/stripping is achieved at high rates. A full-cell battery of SAI protected LMA|LiNi0.8Co0.1Mn0.1O2 delivers a high capacity of 147 mAh g–1 with an improved capacity retention for 500 cycles at 3 C (1 C = 210 mA g–1), and the full cell can deliver over 71% of its capacity in 12 min

Fluorine-Doped SnO₂@Graphene Porous Composite for High Capacity Lithium-Ion Batteries

For the first time, a composite of fluorine-doped SnO₂ and reduced graphene oxide (F-SnO₂@RGO) was synthesized using a cheap F-containing Sn source, Sn­(BF₄)₂, through a hydrothermal process. X-ray photoelectron spectroscopy and X-ray diffraction results identified that F was doped in the unit cells of the SnO₂ nanocrystals, instead of only on the surfaces of the nanoparticles. F doping of SnO₂ led to more uniform and higher loading of the F-SnO₂ nanoparticles on the surfaces of RGO sheets, as well as enhanced electron transportation and Li ion diffusion in the composite. As a result, the F-SnO₂@RGO composite exhibited a remarkably high specific capacity (1277 mA h g^–1 after 100 cycles), a long-term cycling stability, and excellent high-rate capacity at large charge/discharge current densities as anode material for lithium ion batteries. The outstanding performance of the F-SnO₂@RGO composite electrode could be ascribed to the combined features of the composite electrode that dealt with both the electrode dynamics (enhanced electron transportation and Li ion diffusion due to F doping) and the electrode structure (uniform decoration of the F-SnO₂ nanoparticles on the surfaces of RGO sheets and the three-dimensional porous structures of the F-SnO₂@RGO composite)

Estimation of PM_2.5 using high-resolution satellite data and its mortality risk in an area of Iran

Satellite-based exposure of fine particulate matters has been seldom used as a predictor of mortality. PM2.5 was predicted using Aerosol Optical Depths (AOD) through a two-stage regression model. The predicted PM2.5 was corrected for the bias using two approaches. We estimated the impact by two different scenarios of PM2.5 in the model. We statistically found different distributions of the predicted PM2.5 over the region. Compared to the reference value (5 µg/m3), 90th and 95th percentiles had significant adverse effect on total mortality (RR 90th percentile:1.45; CI 95%: 1.08–1.95 and RR 95th percentile:1.53; CI 95%: 1.11–2.1). Nearly 1050 deaths were attributed to any range of the air pollution (unhealthy range), of which more than half were attributed to high concentration range. Given the adverse effect of extreme values compared to the both scenarios, more efforts are suggested to define local-specific reference values and preventive strategies.</p

Graphene Oxide: A Versatile Agent for Polyimide Foams with Improved Foaming Capability and Enhanced Flexibility

Close-celled aromatic polyimide (PI)/graphene foams with low density and improved flexibility were fabricated by thermal foaming of poly­(amic ester)/graphene oxide (PAE/GO) precursor powders. The PAE/GO precursor powders were prepared by grafting GO nanosheets with PAE chains, which led to efficient dispersion of the GO nanosheets in PAE matrix. Incorporation of GO resulted in an enhanced foaming capability of the precursor, i.e., enlarged cell size and decreased foam density. Notably, a decrease of 50% in the foam density was obtained via the addition of only 2 wt % GO in the precursor. In the foaming process, the GO nanosheets functioned as a versatile agent that not only provided heterogeneous nucleation sites but also produced gaseous molecules. By analyzing the foaming mechanism, the excellent features of GO in heat transfer, gas barrier, and strength reinforcement also facilitated to obtain large and uniform cells in the foams. In addition, the PI/graphene foams exhibited a prominent flexibility and enhanced flexural strength, as an elastic-to-nonelastic conversion of the initial stage of the compressive stress–strain curves was observed by increasing the content of graphene in the PI matrix and an increase of 22.5% in flexural strength was obtained by addition of 0.5 wt % GO in the precursor

Effects of training intensity, interval time, and training method on jump height in two stages.

(A) Time × protocol interaction effects on jump height over time in different training intensities. (B) Time × training intensity interaction effects on jump height over time under different training methods. (C) Jump height of the same population receiving different training protocols in two stages.</p

Long-Term Exposure to Road Traffic Noise and Incident Heart Failure: Evidence From UK Biobank

Background: Evidence on road traffic noise and heart failure (HF) is limited, and little is known on the potential mediation roles of acute myocardial infarction (AMI), hypertension, or diabetes. Objectives: The purpose of this study was to evaluate the impacts of long-term road traffic noise exposure on the risk of incident HF considering air pollution, and explore the mediations of the previously mentioned diseases. Methods: This prospective study included 424,767 participants without HF at baseline in UK Biobank. The residential-level noise and air pollution exposure was estimated, and the incident HF was identified through linkages with medical records. Cox proportional hazard models were used to estimate HRs. Furthermore, time-dependent mediation was performed. Results: During a median 12.5 years of follow-up, 12,817 incident HF were ascertained. The HRs were 1.08 (95% CI: 1.00-1.16) per 10 dB[A] increase in weighted average 24-hour road traffic noise level (Lden), and 1.15 (95% CI: 1.02-1.31) for exposure to Lden >65 dB[A] compared with the reference category (Lden ≤55 dB[A]), respectively. Furthermore, the strongest combined effects were found in those with both high exposures to road traffic noise and air pollution including fine particles and nitrogen dioxide. Prior AMI before HF within 2 years' time interval mediated 12.5% of the association of road traffic noise with HF. Conclusions: More attention should be paid and a preventive strategy should be considered to alleviate the disease burden of HF related to road traffic noise exposure, especially in participants who survived AMI and developed HF within 2 years.</p