Long-Term Charge/Discharge Cycling Stability of MnO2 Aqueous Supercapacitor under Positive Polarization

2011 ◽  
Vol 158 (4) ◽  
pp. A422 ◽  
Author(s):  
Fatemeh Ataherian ◽  
Nae-Lih Wu
Keyword(s):  
Cycling Stability ◽  
Positive Polarization ◽  
Charge Discharge

scholarly journals Wire-in-Wire TiO2/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  
Keyword(s):  
Critical Role ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
High Capacity ◽  
Cycling Stability ◽  
Free Standing ◽  
High Specific Capacity ◽  
Tetracarboxylic Dianhydride ◽  
Carbon Network

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.

Mechanical constraining double-shell protected Si-based anode material for lithium-ion batteries with long-term cycling stability

2020 ◽  
Vol 846 ◽  
pp. 156437
Author(s):  
Yan Zhang ◽  
Bisai Li ◽  
Bin Tang ◽  
Zeen Yao ◽  
Xiongjie Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
Cycling Stability

Preparation and Performance of Si/Al/C Composites Anode Material Prepared by Glucose-Modified

2012 ◽  
Vol 164 ◽  
pp. 268-271
Author(s):  
Xu Ma ◽  
Ling Long Kong ◽  
Yu Ling Liu ◽  
Yan Hong Ding ◽  
Jie Zhao ◽  
...  
Keyword(s):  
Anode Material ◽  
Coulombic Efficiency ◽  
Test System ◽  
Cycling Stability ◽  
Charge Capacity ◽  
And Performance ◽  
Charge Discharge ◽  
Discharge Test

Si/Al/C composites were synthesized by the method of doping aluminum and glucose-modified. The samples were characterized by XRD, SEM, and the capacity and cycling stability of the composites were tested by electrochemical charge/discharge test system. After glucose was pyrolyzed, the first discharge and charge capacity of Si/Al/C composites were 1312 and 956.7mAh/g, and the first coulombic efficiency was 72.9%. After 50 cycles, the capacity of Si/Al/C composites was 440mAh /g and the coulombic efficiency remained over 98.1%

Performance and Long-Term Charge/Discharge Properties of a Capacitor Electrode of Carbon Gel in an Organic Electrolyte

2017 ◽  
Vol 43 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Hikaru Tsuchida ◽  
Zairan Cheng ◽  
Kiyoharu Nakagawa ◽  
Hirokazu Oda
Keyword(s):  
Organic Electrolyte ◽  
Carbon Gel ◽  
Charge Discharge

Cycling Stability Performance of La0.75Mg0.25Ni3.5Si0.10 Hydrogen Storage Alloy in Discharge–Charge System

2014 ◽  
Vol 13 (05n06) ◽  
pp. 1460003
Author(s):  
Zhaojiang Liu ◽  
Lei Huang ◽  
Qi Wan ◽  
Xu Li ◽  
Ma Guang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Electrochemical Properties ◽  
Melting Furnace ◽  
Test System ◽  
Cycling Stability ◽  
Hydrogen Storage Alloy ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Stability Performance ◽  
Charge Discharge

La 0.75 Mg 0.25 Ni 3.5 Si 0.10 hydrogen storage alloy was prepared by vacuum induction melting furnace and subsequently heated treatment at 940°C for 8 h and cooled to room temperature in the oven. The electrochemical properties of La 0.75 Mg 0.25 Ni 3.5 Si 0.10 compound were measured by LAND CT2001A battery test system. The morphologies of the samples were characterized by scanning electron microscopy (SEM). The surface state of samples was analyzed by X-ray photoelectron spectroscopy (XPS). It was found that the charge–discharge rate plays the key impact on the cycling stability of the alloy. During the cycle test, the prepared La 0.75 Mg 0.25 Ni 3.5 Si 0.10 compound presented an excellent capacity retention at the charge–discharge of 1 C while the capacity of sample declined rapidly at 0.2 C. The excellent cycling stability performance of La 0.75 Mg 0.25 Ni 3.5 Si 0.10 electrode at 1 C could be attributed to the less powder and less oxidation of surface effective active elements. The pulverization inevitably leads to the separation of the part of the cracking alloy and the electrode, resulting in reduction of the effective active substance and increasing attenuation of the capacity per cycle. In addition, on the analysis of the different cut-off potential effects on the electrode, it was found that the La 0.75 Mg 0.25 Ni 3.5 Si 0.10 electrode shows good comprehensive electrochemical properties at 1 C cut-off 0.6–0.7 V. During charging, heavy overcharge will not be conducive to cycling stability performance during the charging test.

In Situ Synthesis of WSe2/CMK-5 Nanocomposite for Rechargeable Lithium-Ion Batteries with a Long-Term Cycling Stability

2018 ◽  
Vol 6 (4) ◽  
pp. 4688-4694 ◽  
Author(s):  
Jianbiao Wang ◽  
Lin Chen ◽  
Lingxing Zeng ◽  
Qiaohua Wei ◽  
Mingdeng Wei
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
In Situ Synthesis ◽  
Cycling Stability

Long-Term Cycling Stability of 18650 Li-Ion Batteries Cells Using NMC811 Core@Shell Structure with Tetra-Materials

2021 ◽  
Vol MA2021-01 (4) ◽  
pp. 246-246
Author(s):  
Chirayu Khunrugsa ◽  
Poramane Chiochan ◽  
Farkfun Duriyasart ◽  
Chonticha Jangsan ◽  
Pattranit Kullawattanapokin ◽  
...  
Keyword(s):  
Shell Structure ◽  
Cycling Stability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Core Shell Structure

Carbon coated porous silicon flakes with high initial coulombic efficiency and long-term cycling stability for lithium ion batteries

2019 ◽  
Vol 3 (9) ◽  
pp. 2361-2365 ◽  
Author(s):  
Xiaoyong Dou ◽  
Ming Chen ◽  
Jiantao Zai ◽  
Zhen De ◽  
Boxu Dong ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Next Generation ◽  
Carbon Coated ◽  
Initial Coulombic Efficiency

Silicon (Si) has been regarded as a promising next-generation anode material to replace carbon-based materials for lithium ion batteries (LIBs).

Long-term cycling stability of porous Sn anode for sodium-ion batteries

2016 ◽  
Vol 317 ◽  
pp. 153-158 ◽  
Author(s):  
Changhyeon Kim ◽  
Ki-Young Lee ◽  
Icpyo Kim ◽  
Jinsoo Park ◽  
Gyubong Cho ◽  
...  
Keyword(s):  
Cycling Stability ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Sn Anode

scholarly journals Cabbage-like α-Ni(OH)2 with a good long-term cycling stability and high electrochemical performances for supercapacitor applications

2017 ◽  
Vol 677 ◽  
pp. 75-79 ◽  
Author(s):  
L. Aguilera ◽  
Y. Leyet ◽  
R. Peña-Garcia ◽  
E. Padrón-Hernández ◽  
R.R. Passos ◽  
...  
Keyword(s):  
Cycling Stability ◽  
Electrochemical Performances ◽  
Supercapacitor Applications
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