scholarly journals Fe substitution in urchin-like NiCo2O4 for energy storage devices

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7210-7217 ◽  
Author(s):  
Yuan Yuan ◽  
Duanfu Long ◽  
Zhong Li ◽  
Jiliang Zhu
Keyword(s):  
Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Storage Performance ◽  
Fe Substitution

A composite of NiCo2−xFexO4 was designed to investigate the effects of Fe substitution on its energy storage performance.

scholarly journals BiFeO3-Based Relaxor Ferroelectrics for Energy Storage: Progress and Prospects

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7188
Author(s):  
Bipul Deka ◽  
Kyung-Hoon Cho
Keyword(s):  
Energy Storage ◽  
Breakdown Strength ◽  
Storage Systems ◽  
Electrical Energy ◽  
Relaxor Ferroelectrics ◽  
Energy Storage Systems ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Storage Performance ◽  
Low Dielectric

Dielectric capacitors have been widely studied because their electrostatic storage capacity is enormous, and they can deliver the stored energy in a very short time. Relaxor ferroelectrics-based dielectric capacitors have gained tremendous importance for the efficient storage of electrical energy. Relaxor ferroelectrics possess low dielectric loss, low remanent polarization, high saturation polarization, and high breakdown strength, which are the main parameters for energy storage. This article focuses on a timely review of the energy storage performance of BiFeO3-based relaxor ferroelectrics in bulk ceramics, multilayers, and thin film forms. The article begins with a general introduction to various energy storage systems and the need for dielectric capacitors as energy storage devices. This is followed by a brief discussion on the mechanism of energy storage in capacitors, ferroelectrics, anti-ferroelectrics, and relaxor ferroelectrics as potential candidates for energy storage. The remainder of this article is devoted to reviewing the energy storage performance of bulk ceramics, multilayers, and thin films of BiFeO3-based relaxor ferroelectrics, along with a discussion of strategies to address some of the issues associated with their application as energy storage systems.

Efficient high active mass paper-based energy-storage devices containing free-standing additive-less polypyrrole–nanocellulose electrodes

2014 ◽  
Vol 2 (21) ◽  
pp. 7711-7716 ◽  
Author(s):  
Zhaohui Wang ◽  
Petter Tammela ◽  
Peng Zhang ◽  
Maria Strømme ◽  
Leif Nyholm
Keyword(s):  
Energy Storage ◽  
Charge Storage ◽  
Energy Storage Devices ◽  
Free Standing ◽  
Free Paper ◽  
Active Mass ◽  
Storage Devices ◽  
Storage Performance ◽  
Novel Approach

A novel approach is employed to fabricate free-standing and additive-free paper electrodes containing up to 90 wt% polypyrrole (PPy), and with PPy mass loadings up to 20 mg cm−2, which demonstrates excellent charge storage performance for paper-based energy storage devices.

Advanced N-doped mesoporous molybdenum disulfide nanosheets and the enhanced lithium-ion storage performance

2016 ◽  
Vol 4 (4) ◽  
pp. 1440-1445 ◽  
Author(s):  
Si Qin ◽  
Weiwei Lei ◽  
Dan Liu ◽  
Ying Chen
Keyword(s):  
Energy Storage ◽  
Molybdenum Disulfide ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Storage Performance ◽  
Ion Storage ◽  
Van Der Waals Materials ◽  
Molybdenum Disulfide Nanosheets

With the increasing interest in two-dimensional van der Waals materials, molybdenum disulfide (MoS2) has emerged as a promising material for electronic and energy storage devices.

An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices

2020 ◽  
Vol 13 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Nana Chang ◽  
Tianyu Li ◽  
Rui Li ◽  
Shengnan Wang ◽  
Yanbin Yin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Energy Storage Devices ◽  
Storage Devices

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.

Ultrathin Carbon Nanosheets for Highly-efficient Capacitive K-ion and Zn-ion Storage

2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Metal Ion ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Capacity Retention ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
High Efficient ◽  
Ion Storage

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>

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.

Surface modification of cathode materials for energy storage devices: A review

2021 ◽  
pp. 127009
Author(s):  
Manika Chaudhary ◽  
Shrestha Tyagi ◽  
Ram K. Gupta ◽  
Beer Pal Singh ◽  
Rahul Singhal
Keyword(s):  
Surface Modification ◽  
Energy Storage ◽  
Cathode Materials ◽  
Energy Storage Devices ◽  
Storage Devices
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