High Performance Supercapacitors Electrode Derived from the Pine Needles

2014 ◽  
Vol 1035 ◽  
pp. 385-391
Author(s):  
Pei Yu Wang ◽  
Guo Heng Zhang ◽  
Hai Yan Jiao ◽  
Xiao Ping Zheng
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Active Material ◽  
Electrical Energy ◽  
Pine Needles ◽  
Porous Structures ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Surface Areas ◽  
Amorphous Character

In this paper, Pine needles (PNs) were used to synthesize porous activated carbon by the carbonization and activation processes. The material for PNs were carbonized at 600 °C and activated at 800 °C(denoted as AC-800) show typical amorphous character, and display porous structures with high specific surface areas 2729 m2/g via XRD and BET measurements. As the electro-active material, AC-800 electrode exhibit ideal capacitive behaviors in aqueous electrolytes, and the maximal specific capacitance is as high as 286 F/g at the current density of 1 A/g. Furthermore, AC-800 electrode shows excellent electrochemical cycle stability with ~94 % initial capacitance being retained after 2000 cycles. The desirable capacitive performances enable the PNs to act as a new biomass source of carbonaceous materials for high performance supercapacitors and low-cost electrical energy storage devices.

scholarly journals Designing ionic channels in novel carbons for electrochemical energy storage

2019 ◽  
Vol 7 (1) ◽  
pp. 191-201 ◽  
Author(s):  
Jianglin Ye ◽  
Patrice Simon ◽  
Yanwu Zhu
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Ionic Channels ◽  
Carbon Electrodes ◽  
Design Strategies ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Surface Areas ◽  
Electrochemical Electrodes ◽  
Supporting Materials

Abstract Tremendous efforts have been dedicated to developing high-performance energy storage devices based on the micro- or nano-manipulation of novel carbon electrodes, as certain nanocarbons are perceived to have advantages such as high specific surface areas, superior electric conductivities, excellent mechanical properties and so on. In typical electrochemical electrodes, ions are intercalated/deintercalated into/from the bulk (for batteries) or adsorbed/desorbed on/from the surface (for electrochemical capacitors). Fast ionic transport, significantly determined by ionic channels in active electrodes or supporting materials, is a prerequisite for the efficient energy storage with carbons. In this report, we summarize recent design strategies for ionic channels in novel carbons and give comments on the promising features based on those carbons towards tailorable ionic channels.

High-performance flexible quasi-solid-state Zn–MnO2 battery based on MnO2 nanorod arrays coated 3D porous nitrogen-doped carbon cloth

2017 ◽  
Vol 5 (28) ◽  
pp. 14838-14846 ◽  
Author(s):  
Wenda Qiu ◽  
Yu Li ◽  
Ao You ◽  
Zemin Zhang ◽  
Guangfu Li ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Nanorod Arrays ◽  
Energy Storage Devices ◽  
Environmental Friendliness ◽  
Storage Devices ◽  
Nitrogen Doped Carbon

Aqueous Zn–MnO2 batteries have great potential as flexible energy storage devices owing to their low cost, high energy density, safety, and environmental friendliness.

scholarly journals Tungsten‐Doped Nanocrystalline V 6 O 13 Nanoparticles as Low‐Cost and High‐Performance Electrodes for Energy Storage Devices

2019 ◽  
pp. 1801041 ◽  
Author(s):  
Shujun Wang ◽  
Jiadong Qin ◽  
Yubai Zhang ◽  
Fang Xia ◽  
Minsu Liu ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Low Cost ◽  
Energy Storage Devices ◽  
Storage Devices

Fabrication and Design of New Redox Active Azure A/3D Graphene Aerogel and Conductive Trypan Blue–Nickel MOF Nanosheet Array Electrodes for an Asymmetric Supercapattery

2021 ◽  
Author(s):  
Tahereh Sadeghian ◽  
Mehdi Khoshfetrat ◽  
Jalal Arjomandi ◽  
HU SHI ◽  
Sadegh Khazalpour
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Efficiency ◽  
Low Cost ◽  
Graphene Aerogel ◽  
Energy Storage Devices ◽  
3D Graphene ◽  
Storage Devices ◽  
Nanosheet Array ◽  
Redox Active

Great efforts have been made to design and fabricate low-cost, high efficiency advanced electrode materials for energy storage devices such as batteries and high-performance supercapacitors. Choosing organic and redox active...

scholarly journals Synthesis and Morphology Control of Nanoporous Cu2O/Cu and Their Application as Electrode Materials for Capacitors

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 340 ◽  
Author(s):  
Yuanwei Li ◽  
Xueyang Zhao ◽  
Hui Liu ◽  
Wei Li ◽  
Xiaojian Wang
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Acid Solutions ◽  
Porous Structures ◽  
Composite Electrodes ◽  
Energy Storage Devices ◽  
Discharge Performance ◽  
Storage Devices ◽  
Nanoporous Copper ◽  
Potential Applications

In this paper, nanoporous copper (NPC) was prepared by dealloying ZrCuAl metallic glass ribbons with HF acid solutions. The effect of dealloying time on the porous structures and thickness of the obtained NPC films was investigated. It was found that the ligament sizes of the NPC could be tuned in a range from 20 to 300 nm, and the thicknesses of the NPC films from 3.1 to 14.4 μm, with properly selected dealloying times. Furthermore, nanoporous composites made of NPC and nanoporous Cu2O were prepared by oxidizing the NPC with ethanol. The nanoporous composite electrodes exhibited superior charge-discharge performance and would have broad potential applications in flexible high-performance energy storage devices.

scholarly journals Vertical Co9S8 hollow nanowall arrays grown on a Celgard separator as a multifunctional polysulfide barrier for high-performance Li–S batteries

2018 ◽  
Vol 11 (9) ◽  
pp. 2560-2568 ◽  
Author(s):  
Jiarui He ◽  
Yuanfu Chen ◽  
Arumugam Manthiram
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
Next Generation ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Sulfur

Lithium–sulfur (Li–S) batteries have been regarded as one of the most promising next-generation energy-storage devices, due to their low cost and high theoretical energy density (2600 W h kg−1).

RuO2-coated vertical graphene hybrid electrodes for high-performance solid-state supercapacitors

2017 ◽  
Vol 5 (33) ◽  
pp. 17293-17301 ◽  
Author(s):  
Zhao Jun Han ◽  
Shafique Pineda ◽  
Adrian T. Murdock ◽  
Dong Han Seo ◽  
Kostya (Ken) Ostrikov ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Frequency Response ◽  
Electrical Resistance ◽  
High Performance ◽  
Low Cost ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Binder Free ◽  
Excellent Stability

Solid-state supercapacitors can be fabricated by uniformly coating RuO2onto vertical graphene (VG) using a simple, scalable, low-cost and solution-free method. The binder-free RuO2/VG hybrid electrodes possess a high areal capacitance, low electrical resistance, good frequency response, and excellent stability, shedding light on the commercialisation of Ru-based energy storage devices.

Hierarchical porous carbon nanosheet derived from waste engine oil for high-performance supercapacitor application

2019 ◽  
Vol 3 (2) ◽  
pp. 499-507 ◽  
Author(s):  
Yubing Li ◽  
Deyi Zhang ◽  
Jingjing He ◽  
Yulin Wang ◽  
Xiai Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Low Cost ◽  
Engine Oil ◽  
Hierarchical Porous Carbon ◽  
Energy Storage Devices ◽  
Supercapacitor Application ◽  
Storage Devices ◽  
Waste Engine Oil ◽  
Hierarchical Porous

The utilization of electrode materials with high-performance and low-cost is crucial for the development of electrochemical energy storage devices.

scholarly journals High-Performance Aqueous Zinc–Manganese Battery with Reversible Mn2+/Mn4+ Double Redox Achieved by Carbon Coated MnOx Nanoparticles

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Jingdong Huang ◽  
Jing Zeng ◽  
Kunjie Zhu ◽  
Ruizhi Zhang ◽  
Jun Liu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
Electrical Energy ◽  
Electrode Reaction ◽  
High Energy ◽  
High Energy Density ◽  
Ultrahigh Energy ◽  
Energy Storage Devices

AbstractThere is an urgent need for low-cost, high-energy-density, environmentally friendly energy storage devices to fulfill the rapidly increasing need for electrical energy storage. Multi-electron redox is considerably crucial for the development of high-energy-density cathodes. Here we present high-performance aqueous zinc–manganese batteries with reversible Mn2+/Mn4+ double redox. The active Mn4+ is generated in situ from the Mn2+-containing MnOx nanoparticles and electrolyte. Benefitting from the low crystallinity of the birnessite-type MnO2 as well as the electrolyte with Mn2+ additive, the MnOx cathode achieves an ultrahigh energy density with a peak of 845.1 Wh kg−1 and an ultralong lifespan of 1500 cycles. The combination of electrochemical measurements and material characterization reveals the reversible Mn2+/Mn4+ double redox (birnessite-type MnO2 ↔ monoclinic MnOOH and spinel ZnMn2O4 ↔ Mn2+ ions). The reversible Mn2+/Mn4+ double redox electrode reaction mechanism offers new opportunities for the design of low-cost, high-energy-density cathodes for advanced rechargeable aqueous batteries.

scholarly journals Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2053 ◽  
Author(s):  
Jia Hui ◽  
Daoxin Wei ◽  
Jing Chen ◽  
Zhou Yang
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Composite Electrode ◽  
Low Cost ◽  
Electrochemical Performances ◽  
Carbon Cloth ◽  
Composite Electrodes ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
One Step

Carbon materials have been widely used in designing supercapacitors (SCs) but the capacitance is not ideal. Herein, we synthesize polyaniline (PANI) nanotubes on the basis of a carbon cloth (CC) through a one-step self-degradation template method, and fabricate a CC@PANI NTs-H (CC@PANI nanotubes doping at high temperature) composite electrode by thermal acid doping. The CC@PANI NTs-H electrode obviously exhibits better electrochemical performance with a gravimetric capacitance of 438 F g−1 and maintains 86.8% after 10,000 cycles than the CC@PANI NTs-R (CC@PANI nanotubes doping at room temperature) electrode. Furthermore, we assemble a flexible solid state supercapacitor (FSSC) device with the as-prepared CC@PANI NTs-H composite electrodes, showing good flexibility and outstanding electrochemical performances with a high gravimetric capacitance of 247 F g−1, a large energy density of 21.9 Wh kg−1, and a capacitance retention of 85.4% after 10,000 charge and discharge cycles. Our work proposes a novel and easy pathway to fabricate low-cost FSSCs for the development of energy storage devices.

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