Fe3O4 Nanoparticles on 3D Porous Carbon Skeleton Derived from Rape Pollen for High-Performance Li-Ion Capacitors

Herein, a three-dimensional (3D) Fe3O4@C composite with hollow porous structure is prepared by simple solution method and calcination treatment with biomass waste rape pollen (RP) as a carbon source, which is served as an anode of Li-ion capacitor (LIC). The 3D interconnected porous structure and conductive networks facilitate the transfer of ion/electron and accommodate the volume changes of Fe3O4 during the electrochemical reaction process, which leads to the excellent performance of the Fe3O4@C composite electrode. The electrochemical analysis demonstrates that the hybrid LIC fabricated with Fe3O4@C as the anode and activated carbon (AC) as the cathode can operate at a voltage of 4.0 V and exhibit a high energy density of 140.6 Wh kg−1 at 200 W kg−1 (52.8 Wh kg−1 at 10 kW kg−1), along with excellent cycling stability, with a capacity retention of 83.3% over 6000 cycles. Hence, these encouraging results indicate that Fe3O4@C has great potential in developing advanced LICs electrode materials for the next generation of energy storage systems.

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Synthesis of Si/Fe2O3-Anchored rGO Frameworks as High-Performance Anodes for Li-Ion Batteries

International Journal of Molecular Sciences ◽

10.3390/ijms222011041 ◽

2021 ◽

Vol 22 (20) ◽

pp. 11041

Author(s):

Yajing Yan ◽

Yanxu Chen ◽

Yongyan Li ◽

Xiaoyu Wu ◽

Chao Jin ◽

...

Keyword(s):

High Performance ◽

Melt Spinning ◽

Three Dimensional ◽

High Capacity ◽

Reversible Capacity ◽

High Energy ◽

High Specific Surface Area ◽

High Energy Density ◽

Active Components ◽

Li Ion

By virtue of the high theoretical capacity of Si, Si-related materials have been developed as promising anode candidates for high-energy-density batteries. During repeated charge/discharge cycling, however, severe volumetric variation induces the pulverization and peeling of active components, causing rapid capacity decay and even development stagnation in high-capacity batteries. In this study, the Si/Fe2O3-anchored rGO framework was prepared by introducing ball milling into a melt spinning and dealloying process. As the Li-ion battery (LIB) anode, it presents a high reversible capacity of 1744.5 mAh g−1 at 200 mA g−1 after 200 cycles and 889.4 mAh g−1 at 5 A g−1 after 500 cycles. The outstanding electrochemical performance is due to the three-dimensional cross-linked porous framework with a high specific surface area, which is helpful to the transmission of ions and electrons. Moreover, with the cooperation of rGO, the volume expansion of Si is effectively alleviated, thus improving cycling stability. The work provides insights for the design and preparation of Si-based materials for high-performance LIB applications.

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Three-Dimensionally Porous Li-Ion and Li-S Battery Cathodes: A Mini Review for Preparation Methods and Energy-Storage Performance

Nanomaterials ◽

10.3390/nano9030441 ◽

2019 ◽

Vol 9 (3) ◽

pp. 441 ◽

Cited By ~ 6

Author(s):

Jinyun Liu ◽

Jiawei Long ◽

Sen Du ◽

Bai Sun ◽

Shuguang Zhu ◽

...

Keyword(s):

Cathode Materials ◽

High Performance ◽

Three Dimensional ◽

High Energy ◽

High Energy Density ◽

Preparation Methods ◽

Electron Transfer Pathway ◽

Performance Factors ◽

Ion Conductivities ◽

Li Ion

Among many types of batteries, Li-ion and Li-S batteries have been of great interest because of their high energy density, low self-discharge, and non-memory effect, among other aspects. Emerging applications require batteries with higher performance factors, such as capacity and cycling life, which have motivated many research efforts on constructing high-performance anode and cathode materials. Herein, recent research about cathode materials are particularly focused on. Low electron and ion conductivities and poor electrode stability remain great challenges. Three-dimensional (3D) porous nanostructures commonly exhibit unique properties, such as good Li+ ion diffusion, short electron transfer pathway, robust mechanical strength, and sufficient space for volume change accommodation during charge/discharge, which make them promising for high-performance cathodes in batteries. A comprehensive summary about some cutting-edge investigations of Li-ion and Li-S battery cathodes is presented. As demonstrative examples, LiCoO2, LiMn2O4, LiFePO4, V2O5, and LiNi1−x−yCoxMnyO2 in pristine and modified forms with a 3D porous structure for Li-ion batteries are introduced, with a particular focus on their preparation methods. Additionally, S loaded on 3D scaffolds for Li-S batteries is discussed. In addition, the main challenges and potential directions for next generation cathodes have been indicated, which would be beneficial to researchers and engineers developing high-performance electrodes for advanced secondary batteries.

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Research on High-Value Utilization of Carbon Derived from Tobacco Waste in Supercapacitors

Materials ◽

10.3390/ma14071714 ◽

2021 ◽

Vol 14 (7) ◽

pp. 1714

Author(s):

Zhenrui Huang ◽

Caiyun Qin ◽

Jun Wang ◽

Lin Cao ◽

Zhuwen Ma ◽

...

Keyword(s):

High Performance ◽

Electrode Materials ◽

Retention Rate ◽

High Specific Capacitance ◽

High Energy ◽

Good Choice ◽

High Energy Density ◽

Koh Activation ◽

Supercapacitor Electrode ◽

Biomass Waste

Large quantities of tobacco stalks residues are generated and discarded as crop waste or combusted directly every year. Thus, we need to find an appropriate way to dispose of this type of waste and recycle it. The conversion of biomass waste into electrode materials for supercapacitors is entirely in line with the concept of sustainability and green. In this paper, tobacco-stalk-based, porous activated carbon (TC) was successfully synthesized by high-temperature and high-pressure hydrothermal pre-carbonization and KOH activation. The synthesized TC had a high pore volume and a large surface area of 1875.5 m2 g−1, in which there were many mesopores and interconnected micro-/macropores. The electrochemical test demonstrated that TC-1 could reach a high specific capacitance of up to 356.4 F g−1 at a current density of 0.5 A g−1, which was carried in 6M KOH. Additionally, a symmetrical supercapacitor device was fabricated by using TC-1 as the electrode, which delivered a high energy density up to 10.4 Wh kg−1 at a power density of 300 W kg−1, and excellent long-term cycling stability (92.8% of the initial capacitance retention rate after 5000 cycles). Therefore, TC-1 is considered to be a promising candidate for high-performance supercapacitor electrode materials and is a good choice for converting tobacco biomass waste into a resource.

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A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

Journal of Materials Chemistry A ◽

10.1039/c7ta09041b ◽

2018 ◽

Vol 6 (4) ◽

pp. 1802-1808 ◽

Cited By ~ 29

Author(s):

Ke Li ◽

Yanshan Huang ◽

Jingjing Liu ◽

Mansoor Sarfraz ◽

Phillips O. Agboola ◽

...

Keyword(s):

Energy Density ◽

High Performance ◽

Three Dimensional ◽

High Energy ◽

Cycling Stability ◽

High Energy Density ◽

Asymmetric Supercapacitor ◽

Asymmetric Supercapacitors ◽

Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

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Nanospace-confined synthesis of oriented porous carbon nanosheets for high-performance electrical double layer capacitors

Journal of Materials Chemistry A ◽

10.1039/c6ta06566j ◽

2016 ◽

Vol 4 (43) ◽

pp. 16879-16885 ◽

Cited By ~ 24

Author(s):

Ya Wang ◽

Hui Dou ◽

Bing Ding ◽

Jie Wang ◽

Zhi Chang ◽

...

Keyword(s):

Energy Density ◽

Porous Carbon ◽

Electrical Double Layer ◽

High Performance ◽

Three Dimensional ◽

High Energy ◽

High Energy Density ◽

Carbon Nanosheets ◽

Electrical Double Layer Capacitors ◽

Double Layer Capacitors

A symmetric capacitor based on facilely synthesized three-dimensional oriented porous carbon nanosheets delivers high energy density.

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N-Substituted Polyanionic Compounds As New High Energy-Density Electrode Materials for Li-Ion and Na-Ion Batteries

ECS Meeting Abstracts ◽

10.1149/ma2018-02/2/105 ◽

2018 ◽

Keyword(s):

Energy Density ◽

Electrode Materials ◽

High Energy ◽

High Energy Density ◽

Li Ion

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Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements

Energies ◽

10.3390/en12061074 ◽

2019 ◽

Vol 12 (6) ◽

pp. 1074 ◽

Cited By ~ 70

Author(s):

Yu Miao ◽

Patrick Hynan ◽

Annette von Jouanne ◽

Alexandre Yokochi

Keyword(s):

Electric Vehicles ◽

Electrode Materials ◽

Negative Electrode ◽

Lithium Ion ◽

High Energy ◽

High Energy Density ◽

Li Ion Batteries ◽

Li Ion Battery ◽

Li Ion ◽

On The Road

Over the past several decades, the number of electric vehicles (EVs) has continued to increase. Projections estimate that worldwide, more than 125 million EVs will be on the road by 2030. At the heart of these advanced vehicles is the lithium-ion (Li-ion) battery which provides the required energy storage. This paper presents and compares key components of Li-ion batteries and describes associated battery management systems, as well as approaches to improve the overall battery efficiency, capacity, and lifespan. Material and thermal characteristics are identified as critical to battery performance. The positive and negative electrode materials, electrolytes and the physical implementation of Li-ion batteries are discussed. In addition, current research on novel high energy density batteries is presented, as well as opportunities to repurpose and recycle the batteries.

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“Green” carbon with hierarchical three dimensional porous structure derived from - Pongamia pinnata seed oil extract cake and NiCo 2 O 4 -Ni(OH) 2 /Multiwall carbon nanotubes nanocomposite as electrode materials for high performance asymmetric supercapacitor

Journal of Power Sources ◽

10.1016/j.jpowsour.2017.04.085 ◽

2017 ◽

Vol 356 ◽

pp. 212-222 ◽

Cited By ~ 9

Author(s):

K. Chaitra ◽

Reddy Narendra ◽

Krishna Venkatesh ◽

N. Nagaraju ◽

Nagaraju Kathyayini

Keyword(s):

Carbon Nanotubes ◽

Porous Structure ◽

High Performance ◽

Seed Oil ◽

Electrode Materials ◽

Three Dimensional ◽

Multiwall Carbon Nanotubes ◽

Asymmetric Supercapacitor ◽

Oil Extract ◽

Multiwall Carbon

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Three-dimensional Co3O4@C@Ni3S2 sandwich-structured nanoneedle arrays: towards high-performance flexible all-solid-state asymmetric supercapacitors

Journal of Materials Chemistry A ◽

10.1039/c5ta03469h ◽

2015 ◽

Vol 3 (31) ◽

pp. 16150-16161 ◽

Cited By ~ 142

Author(s):

Dezhi Kong ◽

Chuanwei Cheng ◽

Ye Wang ◽

Jen It Wong ◽

Yaping Yang ◽

...

Keyword(s):

Activated Carbon ◽

Solid State ◽

High Performance ◽

Three Dimensional ◽

Negative Electrode ◽

High Energy ◽

High Energy Density ◽

Asymmetric Supercapacitor ◽

Cycle Stability ◽

Asymmetric Supercapacitors

A novel asymmetric supercapacitor composed of Co3O4@C@Ni3S2 NNAs as the positive electrode and activated carbon (AC) as the negative electrode can deliver a high energy density and excellent long cycle stability.

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