A high energy density and high rate capability flexible supercapacitor based on electro-spun highly porous SnO2@carbon nanofibers

2020 ◽  
Vol 8 (30) ◽  
pp. 15110-15121 ◽  
Author(s):  
Rasmita Barik ◽  
Vaishali Tanwar ◽  
Rajat Kumar ◽  
Pravin P. Ingole
Keyword(s):  
Energy Density ◽  
State Of The Art ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Flexible Supercapacitor ◽  
Main Challenge ◽  
Highly Porous

The energy density of the present state-of-the-art materials remains the main challenge for commercial utilization of supercapacitor devices.

Stitchable supercapacitors with high energy density and high rate capability using metal nanoparticle-assembled cotton threads

2018 ◽  
Vol 6 (41) ◽  
pp. 20421-20432 ◽  
Author(s):  
Dongyeeb Shin ◽  
Cheong Hoon Kwon ◽  
Yongmin Ko ◽  
Byeongyong Lee ◽  
Seung Woo Lee ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
High Energy ◽  
Metal Nanoparticle ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Cotton Threads ◽  
Energy And Power Density ◽  
Highly Porous

Highly porous metallic cotton-based supercapacitors exhibited remarkable areal energy and power density, exceeding the performance of conventional 1D supercapacitors.

Perforated mesoporous NiO nanostructures for an enhanced pseudocapacitive performance with ultra-high rate capability and high energy density

CrystEngComm ◽  
2019 ◽  
Vol 21 (46) ◽  
pp. 7130-7140 ◽  
Author(s):  
Narasimharao Kitchamsetti ◽  
Parameshwar R. Chikate ◽  
Ranjit A. Patil ◽  
Yuan-Ron Ma ◽  
Parasharam M. Shirage ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
Mesoporous Structure ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Higher Power ◽  
Power And Energy ◽  
2D Nanosheets

The morphology of NiO (1D nanobelts and 2D nanosheets) has a significant effect on the pseudocapacitive performance. The perforated and interlinked mesoporous structure of NiO nanobelts delivered higher power and energy density than nanosheets.

Co-Electrodeposited porous PEDOT–CNT microelectrodes for integrated micro-supercapacitors with high energy density, high rate capability, and long cycling life

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7761-7770 ◽  
Author(s):  
Muhammad Tahir ◽  
Liang He ◽  
Waqas Ali Haider ◽  
Wei Yang ◽  
Xufeng Hong ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
High Energy ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Excellent Cycling Stability ◽  
Cycling Life

Microstructuring of the PEDOT–CNT composite for microsupercapacitors with high rate capability and excellent cycling stability.

High voltage spinel cathode materials for high energy density and high rate capability Li ion rechargeable batteries

2009 ◽  
Vol 194 (1) ◽  
pp. 526-530 ◽  
Author(s):  
Rajesh K. Katiyar ◽  
Rahul Singhal ◽  
Karina Asmar ◽  
Ricky Valentin ◽  
Ram S. Katiyar
Keyword(s):  
Energy Density ◽  
High Voltage ◽  
Rate Capability ◽  
High Energy ◽  
Rechargeable Batteries ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Li Ion ◽  
Spinel Cathode

scholarly journals High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1602 ◽  
Author(s):  
Jun-Ping Hu ◽  
Hang Sheng ◽  
Qi Deng ◽  
Qiang Ma ◽  
Jun Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Three Dimensional ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Closed Structure ◽  
Short Lifecycle

LiNixCoyMnzO2 (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi1/3Co1/3Mn1/3O2 (NCM 111) is considered one of the most widely used LNCM cathodes because of its high energy density and good safety. Herein, a kind of NCM 111 with semi-closed structure was designed by controlling the amount of urea, which possesses high rate capability and long lifespan, exhibiting 140.9 mAh·g−1 at 0.85 A·g−1 and 114.3 mAh·g−1 at 1.70 A·g−1, respectively. The semi-closed structure is conducive to the infiltration of electrolytes and fast lithium ion-transfer inside the electrode material, thus improving the rate performance of the battery. Our work may provide an effective strategy for designing layered-cathode materials with high rate capability.

scholarly journals Stable aqueous aluminum-manganese photoelectrochemical cells with high-rate and high-efficiency abilities

2021 ◽  
Author(s):  
Shuqiang Jiao ◽  
Xuefeng Zhang ◽  
Wei-li Song ◽  
Mingyong Wang ◽  
Jiguo Tu ◽  
...  
Keyword(s):  
Energy Density ◽  
Large Scale ◽  
High Efficiency ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Slow Kinetics ◽  
Aqueous Aluminum

Abstract Aqueous aluminum-ion batteries (AAIBs) are potential candidates for large-scale energy storage devices for their advantages of high energy density, resource abundance, low cost, safety, and environmental friendliness. Due to various redox procedures, good reversibility, and high discharge potential, the aqueous aluminum-manganese oxide battery has drawn wide attention, while the critical issues induced from slow kinetics and undesired soluble Mn2+ lead to slow charging, poor rate capability, and low energy density. However, there is very limited progress for performance improvement via conventional chemical or physical modification approaches. To overcome these challenges, an efficient photo-regulation strategy has been proposed in terms of direct radiating visible light on the cell during the galvanostatic charging and discharging. The efficient separation and transmission of photoelectrons in the photo positive electrode dramatically improves the dynamics, and fast charging and enhanced rate performance could be achieved. Photo-oxidation behavior can effectively promote the conversion of soluble Mn2+, thus further enhancing the energy density of the as-assembled aluminum-manganese battery. Furthermore, a photo-conversion efficiency of up to 1.2% has been acquired. Based on the photo-regulation strategy, the mechanism of the photoelectrochemical coupling system has been understood, which opens a promising route for achieving photoelectrochemical batteries with high energy density and fast charge.

Hierarchically porous Li1.2Mn0.6Ni0.2O2as a high capacity and high rate capability positive electrode material

2016 ◽  
Vol 40 (2) ◽  
pp. 1312-1322 ◽  
Author(s):  
Shanmughasundaram Duraisamy ◽  
Tirupathi Rao Penki ◽  
Munichandraiah Nookala
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
Dual Porosity ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Positive Electrode Material ◽  
Li Ion

Lithium-rich manganese oxide with dual porosity as the cathode material for the next generation high energy density Li-ion batteries.

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