Results 21 to 30 of about 603,839 (190)
Atomistic origins of high rate capability and capacity of N-doped graphene for lithium storage [PDF]
, 2014 Distinct from pure graphene, N-doped graphene (GN) has been found to possess high rate capability and capacity for lithium storage. However, there has still been a lack of direct experimental evidence and fundamental understanding of the storage ...
Yi, W. +9 more
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LiNi0.5Mn1.45Zn0.05O4 with Excellent Electrochemical Performance for Lithium Ion Batteries
International Journal of Electrochemical Science, 2017 Pure LiNi0.5Mn1.45Zn0.05O4 with a mixture of ordered and disordered phase has been successfully synthesized by a low temperature solution combustion synthesis method at 700°C.
Hongyan Sun +4 more
doaj +1 more source
Facile heart rate monitoring with multimodal capabilities
Biosensors and Bioelectronics: X, 2022 This paper presents the fabrication of a prototype with unique functionalities for monitoring human heart rate via simple insertion of fingertip on an infrared based sensor. The variation in the absorbance caused by the repeated pumping of oxygenated blood to various tissues within the body leads to distinct peaks and dips corresponding to the signal ...
Bhaskar Jyoti Borah +3 more
openaire +2 more sources
Kinetics and Electrochemical Studies of Fe-substituted LiMnPO4
International Journal of Electrochemical Science, 2012 A simple sol-gel method was applied to synthesize LiMn(1-x)FexPO4 (x=0-0.5). The kinetics of LiMn(1-x)FexPO4 was studied by chemical delithiation experiment and EIS measurements. The results showed that the LiMn0.6Fe0.4PO4 has the fastest conversion rate
Jiali Liu +3 more
doaj +1 more source
Actual pseudocapacity for Li ion storage in tunable core‐shell electrode architectures
EcoMat, 2022 Upon evaluating the pseudocapacitance contribution (k1v) of electrode materials, the exact capacity (also termed as actual pseudocapacity, kQ) is usually ignored. However, there is a significant variation between k1v and kQ.
Tuzhi Xiong +5 more
doaj +1 more source
3D Porous LiNi0.5Mn1.5O4 with Improved Rate Capability and Cycle Stability
International Journal of Electrochemical Science, 2018 A 3D porous LiNi0.5Mn1.5O4 (3D-LNMO) was prepared by an easy cotton assisted solution combustion synthesis method. X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to characterize the phase ...
Shaoping Feng +5 more
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International Journal of Electrochemical Science, 2018 Disordered spinel LiNi0.5Mn1.5O4 (LNMO) was successfully synthesised via a molten-salt method using a mixture of LiOH⋅H2O and LiNO3 salts. The precursor was annealed at 750, 850 or 950 °C for 12 h, and the effects of calcination temperature on the ...
Nabilah Mokhtar +2 more
doaj +1 more source
Inorganics, 2023 High mass loading (ca. 30 mg/cm2) electrodes were prepared with carbon recovered from catalytic methane cracking (MC). As-fabricated supercapacitors displayed 74% of capacitance retention from 6 mA/cm2 to 60 mA/cm2 and a Ragone plot’s slope of −7 Wh/kW ...
Joana Baptista +5 more
doaj +1 more source
Facile synthesis of Co9S8 nanosheets for lithium ion batteries with enhanced rate capability and cycling stability [PDF]
, 2017 Two-dimensional Co9S8 nanosheets with a thickness of similar to 10 nm and lateral size of several hundred nanometers are facilely synthesized through a polyvinyl alcohol (PVA)-assisted precipitation process in an aqueous solution.
Qiang Zhang +13 more
core +1 more source
High Performance Li4Ti5O12/Si Composite Anodes for Li-Ion Batteries
Nanomaterials, 2015 Improving the energy capacity of spinel Li4Ti5O12 (LTO) is very important to utilize it as a high-performance Li-ion battery (LIB) electrode. In this work, LTO/Si composites with different weight ratios were prepared and tested as anodes.
Chunhui Chen +2 more
doaj +1 more source