【摘 要】
：
Anode material Li4Ti5O12 was prepared at 800℃ by a solid-state reaction,followed by heat-treatment at 600℃ for different times (0,2,8,and 12 h).The effects of
【机 构】
：
School of Materials Science and Engineering
论文部分内容阅读
Anode material Li4Ti5O12 was prepared at 800℃ by a solid-state reaction,followed by heat-treatment at 600℃ for different times (0,2,8,and 12 h).The effects of heat-treatmont time on the particle morphology,rate-capability,and electrode kinetic process of the Li4Ti5O12 electrode,and on the lithium ion diffusion coefficient inside the Li4Ti5O12 electrode were investigated.Proper heat treatment could smoothen the particle surface of Li4Ti5O12 particles and increase the rate-capability of the electrode.Overlong heat treatment might cause particle aggregation and hence result in a poor electrode kinetic process.A sample with 8 h of heat trearmnent showed the best rate-capability and the lowest electrode reaction resistance.Heat treatment for 2-8 h does not significantly change the lithium ion diffusion coefficient inside the Li4Ti5O12 electrode,whereas,12-h treatment results in a lower lithium ion diffusion coefficient.
其他文献
A new method of sintering Ca3SiO5 by the combination of conventional and microwave heating methods was studied. The influence of transitional metal oxides such
The asymptotic method and phase field simulation are applied to study the influences of variation of the surface tension with temperature on the movements of so
Considering the design problem of non-fragile decentralized H∞ controller with gain variations, the dynamic feedback controller by measurement feedback for unc
Based on consideration of the differential relations between the immeasurable variables and measurable variables in electro-hydraulic servo system, adaptive dyn
A NiCrAlY coating was deposited on the TC6 titanium substrate by arc ion plating (AIP). The structure and morphologies of the NiCrAlY coating were characterized
PLC是一种可靠性、稳定性较高的控制器,其出现故障的概率较低。但PLC一旦在工作过程中出现故障,首先要充分了解故障,判断故障发生的具体位置,分析故障现象是否具有再生性;然
To minimize the overall transmit power while maintaining a constant data rate and target BER,a downlink adaptive resource allocation algorithm with jointing the
Two types of spinel cathode powders, LiMn2O4 and LiAl0.1Mn1.9O3.9F0.1, were synthesized by solid-state reaction. X-ray diffraction (XRD) patterns of the prepare
The bake hardening (BH) behavior of transformation-induced plasticity (TRIP) and dual-phase (DP) steels after different prestrains was studied. The experimental
The effects of aging on the microstructure,mechanical properties,intergranular corrosion,and exfoliation corrosion ot an Al-3.5Cu-1.5Li-0.22(Sc + Zr) alloy have