boosting the ultrahigh initial coulombic efficiency of

Chemical Research in Chinese Universities

They deliver a reversible capacity of 480.7 mAh/g at 500 mA/g and a high initial Coulombic efficiency of 87.8%. Furthermore, a discharge capacity of 444.8 mAh/g can be achieved at 1000 mA/g after 180 cycles. The sodium storage mechanism of FeNi 2 Se 4

OSA

Two-photon excited fluorescence materials usually suffer from inefficient two-photon absorption (TPA) and nonradiative excited states. Here, upconversion fluorescence in an electron donor-acceptor (DA) exciplex doped with fluorescent emitters are systematically investigated. It has been found that the undoped DA exciplex exhibits enhancements of #x223C;129% and #x223C;365% in upconversion

Carbon Supported MoO2 Spheres Boosting Ultra‐Stable

A high initial Coulombic efficiency of 76.5% is obtained due to limited solid electrolyte interface film formed on the exposed surface. Meantime, the sample with an optimal carbon content and a proper structural strength reveals a higher reversible capacity of 956 mA h g −1 than the theoretical capacity of crystalline MoO 2 (838 mA h g −1 ) and a high capacity retention ratio of 96.4%

Boosting initial coulombic efficiency of Si

Silicon-based composites are intensively pursued as one of the most promising anode materials for high-energy lithium-ion batteries (LIBs) owing to their ultrahigh theoretical capacity. However, the extended application of Si-based anode is still retarded by challenge of the poor initial coulombic efficiency (ICE), which will lead to the irreversible capacity loss of the full cell in the first

Surface engineering of LiNi0.8Mn0.1Co0.1O2 towards boosting

could improve the capacity retention to 90.97% after 200 cycles at 100 mA g 1 and enhance the initial coulombic efficiency (CE) to 82.92%. The electrochemical characterization further clarifies the indisputable benefits of NiCo2O4 coating to

Energy Environmental Science

acetylene black (AB). Fig. 1b compares the initial discharge/charge curves between an all-solid-state Li–Se cell and a Li–S cell at 50 mA g 1 at 25 1C. The Li–Se cell delivered an initial discharge capacity of 657 mA h g 1 and a high coulombic efficiency of 98%.

Boosting initial coulombic efficiency of Si

Silicon-based composites are intensively pursued as one of the most promising anode materials for high-energy lithium-ion batteries (LIBs) owing to their ultrahigh theoretical capacity. However, the extended application of Si-based anode is still retarded by challenge of the poor initial coulombic efficiency (ICE), which will lead to the irreversible capacity loss of the full cell in the first

Physics

Boosting Inertial-Confinement-Fusion Yield with Magnetized Fuel Building on a decade of advances in the understanding of neutron production and hot-spot physics, researchers at the National Ignition Facility are pursuing magnetized fusion fuel as a potentially disruptive way to boost the performance of laser-driven implosion.

Current issue

A molten-salt-induced thermochemical prelithiated approach for regulating active Si/O ratio of SiO x and thus enhancing initial Coulombic efficiency (ICE) is introduced, which integrates the coating of LiNH 2 in Li/NH 3 solution and heat treatment of pre-synthesized LiNH 2-coated SiO x in molten-LiCl.

Biomimetic composite architecture achieves ultrahigh rate

2020/12/8In this C-rate range, the Coulombic efficiencies (CEs) are approaching , which indicates good reversibility. Even at an ultra-high rate of 200 C, the voltage plateau is retained and a capacity of 49 mA h g −1 is achieved.

Chemical Research in Chinese Universities

They deliver a reversible capacity of 480.7 mAh/g at 500 mA/g and a high initial Coulombic efficiency of 87.8%. Furthermore, a discharge capacity of 444.8 mAh/g can be achieved at 1000 mA/g after 180 cycles. The sodium storage mechanism of FeNi 2 Se 4

Fabrication of 3D

1 This paper proposes the fabrication process of the first fully 3D-printed ceramic core structures for portable solar desalination devices optimized to tackle water scarcity from an energy and sustainability perspective. Robocasting, a 3D printing technique, is utilized to fabricate a fully ceramic structure of an integrated solar absorber/thermal insulator/water transporter based on the two

Surface engineering of LiNi0.8Mn0.1Co0.1O2 towards boosting

could improve the capacity retention to 90.97% after 200 cycles at 100 mA g 1 and enhance the initial coulombic efficiency (CE) to 82.92%. The electrochemical characterization further clarifies the indisputable benefits of NiCo2O4 coating to

Chemical Research in Chinese Universities

They deliver a reversible capacity of 480.7 mAh/g at 500 mA/g and a high initial Coulombic efficiency of 87.8%. Furthermore, a discharge capacity of 444.8 mAh/g can be achieved at 1000 mA/g after 180 cycles. The sodium storage mechanism of FeNi 2 Se 4

Stabilizing the Nanostructure of SnO2 Anodes by

To dramatically stabilize the nanostructure of Sn and achieve ultrahigh reversibility of conversion reactions in lithiated SnO 2, a series of SnO 2 –transition metal–graphite ternary nanocomposites are produced by ball milling, demonstrating high initial Coulombic efficiencies up to 88.6%, high reversible capacity (700 mAh g −1 at 2 A g −1), and ultralong cycling life (90.3% of

Understanding and improving the initial Coulombic

2019/12/1However, there are still various challenges need to be overcome before its commercial application. Among them, the low initial Coulombic efficiency of high-capacity anode is a critical issue that seriously limits the practical energy density of sodium ion full battery.

A Promising Hard Carbon−Soft Carbon Composite Anode

However, pure hard carbon carbons usually show very low initial coulombic efficiency, low electronic conductance, et al. Herein, hard carbon‐soft carbon (HC‐SC) composites composed of carbon nanotubes (CNTs) blooming on porous hard carbon, which were synthesized through thermal decomposition of zeolitic imidazolate framework‐67 (ZIF‐67) and polyvinyl alcohol (PVA) composite.

Boosting cell performance of LiNi0.8Co0.1Mn0.1O2 cathode material via structure design: Journal of Energy Chemistry, 2021, 55: 114-123 [2]Zeheng Li, Tiefeng Liu,Xuehui Gao,Siyuan Li,Chengdu Liang. Silicon Anode with High Initial Coulombic Efficiency by Modulated Trifunctional Binder for High-Areal-Capacity Lithium-ion Batteries: Advanced Energy Materials, 2020, 10 (20) : 1903110

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In Situ

2 Si is being actively developed as one of the most promising high-capacity anodes for next-generation lithium-ion batteries (LIBs). However, low cycling coulombic efficiency (CE) due to the repetitive growth of the solid electrolyte interphase (SEI) film is still an issue for its application in full batteries. Here, we propose a strategy to in situ form an artificial solid electrolyte

Applications of Ceramic/Graphene Composites and

2021/4/20The better structural behavior and improved charge transport achieved through N-doping delivered an initial discharge capacity of 1712.2 mAhg −1 with initial Coulombic efficiency of 71.5%, and reversible capacity of 1007 mAhg −1 after 50 cycles, 150% highernp

Boosting initial coulombic efficiency of Si

2020/3/20Silicon-based composites are intensively pursued as one of the most promising anode materials for high-energy lithium-ion batteries (LIBs) owing to their ultrahigh theoretical capacity. However, the extended application of Si-based anode is still retarded by challenge of the poor initial coulombic efficiency (ICE), which will lead to the irreversible capacity loss of the full cell in the first

Antimonene Allotropes α

19 In a quest to mitigate the undesirable shuttling effect that hampers the performance of Li–S batteries, we adopted first-principles calculations to study the anchoring mechanism of lithium polysulfides on antimonene phases, i.e., α-Sb and β-Sb. The anchoring mechanisms of LiPSs on α-Sb and β-Sb were studied through calculations of binding energy, charge transfer, and vertical binding

Stabilizing the Nanostructure of SnO2 Anodes by

Stabilizing the Nanostructure of SnO2 Anodes by Transition Metals: A Route to Achieve High Initial Coulombic Efficiency and Stable Capacities for Lithium Storage. Renzong Hu Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.

Nanotechnology Now

Home Press Boosting the efficiency of carbon capture and conversion systems: New design could speed reaction rates in electrochemical systems for pulling carbon out of power plant emissions Dyes are used to reveal the concentration levels of carbon dioxide in the water.

Electrochemical Performance of Hybrid Cationic

The results indicate that the initial coulombic efficiency and discharge capacity of the battery with 1 mol/L ZnSO 4 and 2 mol/L Li 2 SO 4 are 94.31% and 105.7 mAh/g using graphite as the However, the capacity retention of the latter is much higher than that of the former, especially using the high-concentration-lithium-based hybrid electrolyte, of which it is up to 74.63#x0025; even after

Ultra

High initial coulombic efficiency is highly desired because it implies effective interface construction and few electrolyte consumption, indicating enhanced batteries' life and power output. In this work, a high-capacity sodium storage material with FeS nanoclusters (≈1–2 nm) embedded in N, S-doped carbon matrix (FeS /N,S-C) was synthesized, the surface of which displays defects-repaired

Frontiers

Wang et al. studied the doping efficiency of Li + in the KSc 2 F 7 host lattice, they indicated that Li + doping efficiency is highly related to its initial concentration (Wang et al., 2017). In general, the actual amount of Li + doped into the host lattice is much lower than its initial concentration.

Boosting the ultrahigh initial coulombic efficiency of porous

Boosting the ultrahigh initial coulombic efficiency of porous carbon anodes for sodium-ion batteries via in situ fabrication of a passivation Journal of Materials Chemistry A ( IF 11.301) Pub Date Minghao Zhang, Yu Li, Feng Wu, Zhaohua Wang, Ying Bai, Chuan Wu

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