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Here, hard carbon microspheres (HCM) are prepared by tailoring the cross-linked polysaccharide, establishing a comprehensive methodology to obtain high-performance lithium-ion batteries (LIBs) with long plateau capacities. The "adsorption–intercalation mechanism" for lithium storage is revealed combining in situ Raman characterization and
3 天之前· In this work, the pore structure of carbon nanosheet-based electrocatalysts is precisely controlled by adjusting the content of a water-soluble potassium chloride template, allowing for in-depth investigation of the relationship between pore structure, electrolyte usage, and electrochemical performance in Li-S batteries. The molybdenum carbide-embedded carbon
Electrochemical test confirms that the nanoconfinement strategy endows the NPCS anode with high reversible capacity (376.3 mAh g −1 at 0.1 A g −1), superior initial coulombic efficiency (87.3% at 1.0 A g −1), remarkable rate capability (155.6 mAh g −1 at 50.0 A g −1) and excellent cycling stability (with capacity retention of ≈94.6% after 10 000 cycles),
Here, hard carbon microspheres (HCM) are prepared by tailoring the cross-linked polysaccharide, establishing a comprehensive methodology to obtain high-performance lithium-ion batteries (LIBs) with long
When paired with the current commercial LiCoO 2 and LiFePO 4 cathodes, the assembled pHC/LiCoO 2 and pHC/LiFePO 4 full cells exhibit a high ICE of >95.0% and a nearly 100% utilization of electrode-active materials, confirming a practical application of pHC for a new generation of high capacity and high power LIBs.
The pitch-based hard carbon material synthesized with a pre-oxidation heating rate of 0.5 °C min −1 delivers a high reversible capacity of 325.5 mAh g −1, which is higher than that of the directly carbonized carbon from pitch without pre-oxidation (135.8 mAh g −1). This work provides an innovative perspective for designing and developing high-performance hard carbon material
The proof-of-concept of two-dimensional, covalently bound silicon-carbon hybrids exhibits stable high-capacity and high-rate lithium storage performances when referred to weight, volume and area
Sodium-ion batteries (NIBs) are an alternative to lithium-ion batteries (LIBs), particularly in applications where cost, avail-ability, and sustainability are more critical. Hard carbon is emerging as a promising anode material for NIBs, however, the scale up remains in developmental stages.
Electric vehicle (EV) battery technology is at the forefront of the shift towards sustainable transportation. However, maximising the environmental and economic benefits of electric vehicles depends on advances in battery life cycle management. This comprehensive review analyses trends, techniques, and challenges across EV battery development, capacity
Moving forward, it is anticipated that hard carbon will follow a similar pathway as that of high-capacity anode composites, such as graphite-silicon compounds. Again, this is where the design
The addition of HNO 3 to the aqueous medium induced significant morphological changes in the resulting HCs (Fig. 2c and d).While some plant-derived structures remained (see Fig. S1c and
Electrochemical energy storage is a vital component of the renewable energy power generating system, and it helps to build a low-carbon society.The lead-carbon battery is an improved lead-acid battery that incorporates carbon into the negative plate. It compensates for the drawback of lead-acid batteries'' inability to handle instantaneous high current charging, and it
X-ray diffraction (XRD) measurement was performed to investigate the phase structure of Co SA-HC, HC and Co NP-HC particles (Supplementary Fig. 8).The peaks around 26.8° and 44.1° in the XRD
Electrochemical test confirms that the nanoconfinement strategy endows the NPCS anode with high reversible capacity (376.3 mAh g −1 at 0.1 A g −1), superior initial
The addition of HNO 3 to the aqueous medium induced significant morphological changes in the resulting HCs (Fig. 2c and d).While some plant-derived structures remained (see Fig. S1c and d†), their surfaces became entirely covered by micrometre-sized spherical carbon particles.This transformation is primarily attributed to the high oxidising power of HNO 3, which acts as a
The potassium iodide (KI)-modified Ga 80 In 10 Zn 10-air battery exhibits a reduced charging voltage of 1.77 V and high energy efficiency of 57% at 10 mA cm −2 over
The pitch-based hard carbon material synthesized with a pre-oxidation heating rate of 0.5 °C min −1 delivers a high reversible capacity of 325.5 mAh g −1, which is higher than that of the directly carbonized carbon from pitch without pre-oxidation (135.8 mAh g −1). This work provides an
3 天之前· In this work, the pore structure of carbon nanosheet-based electrocatalysts is precisely controlled by adjusting the content of a water-soluble potassium chloride template, allowing for
Here we propose the use of a carbon material called graphene-like-graphite (GLG) as anode material of lithium ion batteries that delivers a high capacity of 608 mAh/g and provides superior rate
Electric vehicle (EV) battery technology is at the forefront of the shift towards sustainable transportation. However, maximising the environmental and economic benefits of
The hard carbon carbonized at 1400 °C (LS1400) delivers a total capacity 350 mAh g −1 in the current density of 100 mA g −1 and a plateau capacity of 250 mAh g −1. Even
This porous carbon material exhibits a high capacity, extended cycle life, and exceptional rate capability, rendering it a promising candidate for future anode materials in
The hard carbon carbonized at 1400 °C (LS1400) delivers a total capacity 350 mAh g −1 in the current density of 100 mA g −1 and a plateau capacity of 250 mAh g −1. Even cycled at 100 mA g −1 after 450 cycles, the capacity still retains 94%.
More than 30 to 60 kWh usable battery capacity for 30 miles of electric driving; A 2-sec high-power performance of 60 to 150 kW or more; That volume, weight, and costs for such large systems are challenging; and; That thermal management for high-power systems operating in commercial vehicles, especially in vocational vehicles, is also challenging.
The potassium iodide (KI)-modified Ga 80 In 10 Zn 10-air battery exhibits a reduced charging voltage of 1.77 V and high energy efficiency of 57% at 10 mA cm −2 over 800 cycles, outperforming conventional Pt/C and Ir/C-based systems with 22% improvement. This innovative battery addresses the limitations of traditional lithium-ion batteries, flow batteries,
This porous carbon material exhibits a high capacity, extended cycle life, and exceptional rate capability, rendering it a promising candidate for future anode materials in lithium-ion batteries. By a simple ball-milling and heat treatment method, pitch as carbon source and CaCO3 or MgO as pore-former, the high-rate capability three-dimensional
The lithium/carbon fluoride (Li/CF x) battery has attracted significant attention due to its highest energy density among all commercially available lithium primary batteries.However, its high energy density also poses a significant risk during thermal runaway events, and its poor electrochemical performance at high discharge current densities limits its
Sodium-ion batteries (NIBs) are an alternative to lithium-ion batteries (LIBs), particularly in applications where cost, avail-ability, and sustainability are more critical. Hard
This porous carbon material exhibits a high capacity, extended cycle life, and exceptional rate capability, rendering it a promising candidate for future anode materials in lithium-ion batteries. High-power batteries have been necessitated in electric or hybrid vehicles, so the battery requires stable operation under high current conditions .
Graphite is utilized as the anode material in commercial lithium-ion batteries. However, the theoretical specific capacity of graphite is 372 mAh g −1, which falls short of the increasing demands of new energy vehicles and renewable energy sources.
The abundant presence of mesoporous and large pore volumes in porous carbon facilitates the diffusion of lithium ions and enhances the lithium storage capacity. The reversible charge–discharge capacity of porous carbon was 1102 mAh g −1 after 120 cycles at 100 mA g −1 and 800 mAh g −1 after 550 cycles at 500 mA g −1.
Mingming Xie successfully synthesized mesoporous carbon with interconnected three-dimensional porous structures, a high surface area, and abundant crystal defects. The reversible charge–discharge capacity of mesoporous carbon was 674.2 mAh g −1 at 0.2 A g −1 and 258.7 mAh g −1 after 1000 cycles at 1 A g −1.
It is believed that porous carbon will play a significant role in the future development of lithium-ion battery anode materials. No datasets were generated or analysed during the current study. H. Liu, X. Liu, W. Li, X. Guo, Y. Wang, G. Wang, D. Zhao, Porous carbon composites for next generation rechargeable lithium batteries.
High-power batteries have been necessitated in electric or hybrid vehicles, so the battery requires stable operation under high current conditions . Graphite is utilized as the anode material in commercial lithium-ion batteries.
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