【摘 要】
：
Sodium ion capacitors (SICs) have been considered as a kind of promising devices to achieve both high power and energy density. However, it is still a challenge to achieve high energy output at elevated power delivery due to the poor rate capability of ba
【机 构】
：
School of Materials Science and Engineering, National Institute for Advanced Materials, Institute of
论文部分内容阅读
Sodium ion capacitors (SICs) have been considered as a kind of promising devices to achieve both high power and energy density. However, it is still a challenge to achieve high energy output at elevated power delivery due to the poor rate capability of battery-type electrode materials and the kinetic mismatch with capacitor-type electrode materials. In this work, to fabricate SICs, P2-Na0.67Co0.5 Mn0.5O2 (P2-NCM) was chosen as the battery-type cathode material, and a typical metal-organic framework (MOF) material, zeolitic imidazolate framework-8 (ZIF-8) derived carbon (ZDC) was utilized as the capacitor-type anode material. Due to the kinetic match and high-rate performance of both electrodes, the ZDC//P2-NCM SICs exhibited an energy output of 18.8 Wh kg 1 at a high power delivery of 12.75 kW kg 1 .
其他文献
The conceptual design of yolk-shell structured Si/C composites is considered to be an effective way to improve the recyclability and conductivity of Si-based anode materials. Herein, a new type of yolk-shell structured Si/C composite (denoted as TSC-PDA-B
The side reaction between the active material and liquid-electrolyte cause structural damage and particle pulverization is one of the important factors leading to the capacity decay of LiNi0.80Co0.15Al0.05O2 (NCA)materials in Li ion batteries (LIBs).Surfa
Syngas to ethanol,consisting of dimethyl ether (DME) carbonylation to methyl acetate (MA) over zeolites and MA hydrogenation to ethanol on copper catalyst,has been developed in recent years,DME carbonylation over zeolites,a key step in this new process,ha
Rechargeable lithium metal batteries own the highest energy density among all electrochemical energy storage devices.Lithium metal anode in those cell system acts as paramount role in promoting high energy density [1].However,lithium anode tends to form d
Lithium sulfur batteries are one of the most promising alternative electrochemical systems,but their practical applications are largely hindered by the serious shuttling problems and sluggish redox kinetics.Here,the conductive and polar niobium nitride (N
A metal-free catalytic system combining oxidized carbon nanotubes (oCNTs) and ionic liquids (ILs) is pre- sented for the oxidation of aromatic thiophene compounds with H 2 O 2 as an oxidant. The oCNTs exhibit impressively high activity and stability in th
Hydrogen storage in Liquid Organic Hydrogen Carrier (LOHC) systems is appealing for the safe storage and distribution of excess renewable energy via existing gasoline infrastructures to end-users.We present the eutectic mixture of biphenyl and diphenyl et
Lithium sulfur (Li-S) batteries hold great promising for high-energy-density batteries,but appear rapid capacity fading due to the lack of overall and elaborated design of both sulfur host and interlayer.Herein,we developed a novel two-dimensional (2D) hi
Gold,as the common current collector in solid oxide electrolysis cell (SOEC),is traditionally considered to be inert for oxygen evolution reaction at the anode of SOEC.Herein,gold nanoparticles were loaded onto conventional strontium doped lanthanum manga
Developing large-scale and highly efficient oxygen reduction reaction (ORR) catalysts acts a vital role in realizing wide application of metal-air batteries.Here,we propose a gas-foaming strategy to fabricate sustainable and 3D hierarchically porous N-dop