Bimetallic nickel cobalt selenides: a new kind of electroactive material for high-power energy storage

2015 ◽  
Vol 3 (47) ◽  
pp. 23653-23659 ◽  
Author(s):  
Haichao Chen ◽  
Si Chen ◽  
Meiqiang Fan ◽  
Chao Li ◽  
Da Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Power ◽  
Power Delivery ◽  
Electroactive Material ◽  
Storage Performance ◽  
Nickel Cobalt ◽  
First Time

For the first time, bimetallic Ni–Co selenides are synthesized and show improved power-delivery and energy-storage performance.

Design of nickel cobalt molybdate regulated by boronizing for high-performance supercapacitor applications

Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17849-17857 ◽  
Author(s):  
Gang Zhao ◽  
Yumeng Chen ◽  
Pengxiao Sun ◽  
Shuhua Hao ◽  
Xiaoke Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Synergistic Effect ◽  
Hierarchical Structure ◽  
Electrode Material ◽  
High Performance ◽  
Hybrid Architectures ◽  
Storage Performance ◽  
Nickel Cobalt ◽  
Cobalt Molybdate ◽  
Supercapacitor Applications

Here, we have successfully synthesized hierarchical structure by boronizing NixCoyMoO4 nanosheets. Benefitting from the synergistic effect among Ni3B, Ni(BO2)2 and NixCoyMoO4 in hybrid architectures, the electrode material possesses higher energy storage performance.

scholarly journals Effect of Composition on Polarization Hysteresis and Energy Storage Ability of P(VDF-TrFE-CFE) Relaxor Terpolymers

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1343
Author(s):  
Yusra Hambal ◽  
Vladimir V. Shvartsman ◽  
Daniil Lewin ◽  
Chieng Huo Huat ◽  
Xin Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Hysteresis Loops ◽  
Freezing Temperature ◽  
Relaxor Behavior ◽  
Ferroelectric State ◽  
Storage Performance ◽  
Relaxor State ◽  
A Charge ◽  
First Time ◽  
Discharge Efficiency

The temperature dependence of the dielectric permittivity and polarization hysteresis loops of P(VDF-TrFE-CFE) polymer films with different compositions are studied. Among them, the three compositions, 51.3/48.7/6.2, 59.8/40.2/7.3, and 70/30/8.1, are characterized for the first time. Relaxor behavior is confirmed for all studied samples. Increasing the CFE content results in lowering the freezing temperature and stabilizes the ergodic relaxor state. The observed double hysteresis loops are related to the field-induced transition to a ferroelectric state. The critical field corresponding to this transition varies with the composition and temperature; it becomes larger for temperatures far from the freezing temperature. The energy storage performance is evaluated from the analysis of unipolar polarization hysteresis loops. P(VDF-TrFE-CFE) 59.8/40.2/7.3 shows the largest energy density of about 5 J·cm−3 (at the field of 200 MV·m−1) and a charge–discharge efficiency of 63%, which iscomparable with the best literature data for the neat terpolymers.

scholarly journals Высоковольтные диффузионные диоды с резким восстановлением. II. Теория

2019 ◽  
Vol 53 (7) ◽  
pp. 985
Author(s):  
А.С. Кюрегян
Keyword(s):  
Energy Storage ◽  
High Power ◽  
Voltage Pulse ◽  
Resistive Load ◽  
Power Generators ◽  
Inductive Energy Storage ◽  
Nanosecond Pulses ◽  
Early Results ◽  
Analytical Formulas ◽  
First Time

Approximate analytical formulas are obtained to evaluate the main characteristics of diffused step recovery diodes (SRD) operating as current interrupters in high-power generators of nanosecond pulses with an inductive energy storage: the unwanted pre-pulse voltage, characterizing resistive losses in SRD, amplitude, duration of front and duration of voltage pulse formed on the resistive load. For comparison, similar formulas for epitaxial SRD, partially obtained for the first time, and partially clarifying the early results, are given.

Carbothermal conversion of boric acid into boron-oxy-carbide nanostructures for high-power supercapacitors

2021 ◽  
Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim
Keyword(s):  
Energy Storage ◽  
Boric Acid ◽  
High Power ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbothermal Method ◽  
Electrochemical Energy

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.

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