Improving Electrochemical Cycling Stability of Conjugated Yellow-to-Transmissive Electrochromic Polymers by Regulating Effective Overpotentials

2022 ◽  
pp. 336-342
Author(s):  
Xuefei Li ◽  
Xiaokang Wang ◽  
Liyan You ◽  
Kejie Zhao ◽  
Jianguo Mei
Keyword(s):  
Cycling Stability ◽  
Electrochromic Polymers ◽  
Electrochemical Cycling

scholarly journals Improved electrochemical cycling stability of intercalation battery electrodes via control of material morphology

Ionics ◽  
2018 ◽  
Vol 25 (2) ◽  
pp. 493-502 ◽  
Author(s):  
Bryan W. Byles ◽  
Mallory Clites ◽  
David A. Cullen ◽  
Karren L. More ◽  
Ekaterina Pomerantseva
Keyword(s):  
Cycling Stability ◽  
Electrochemical Cycling

N-doped porous carbon derived from walnut shells with enhanced electrochemical performance for supercapacitor

2019 ◽  
Vol 12 (03) ◽  
pp. 1950042 ◽  
Author(s):  
Yunfeng Wang ◽  
Honghui Jiang ◽  
Shewen Ye ◽  
Jiaming Zhou ◽  
Jiahao Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Porous Carbon ◽  
Low Cost ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Electrochemical Performances ◽  
Walnut Shells ◽  
Electrochemical Cycling ◽  
Elemental Doping

As the low-cost, natural multi-component for elemental doping and environment-friendly characteristics, biomass-derived porous carbon for energy storage attracts intense attention. Herein, walnut shells-based porous carbon has been obtained through carbonization, hydrothermal and activation treatment. The corresponding porous carbon owns superior electrochemical performances with specific capacitance reaching up to 462[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text], and shows excellent cycling stability (5000 cycles, [Formula: see text]94.2% of capacitance retention at 10[Formula: see text]A[Formula: see text]g[Formula: see text]). Moreover, the symmetry supercapacitor achieves high specific capacitance (197[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text]), relevant electrochemical cycling stability (5000 cycles, 89.2% of capacitance retention at 5[Formula: see text]A[Formula: see text]g[Formula: see text]) and high power/energy density (42.8[Formula: see text]W[Formula: see text]h[Formula: see text]kg[Formula: see text] at 1249[Formula: see text]W[Formula: see text]kg[Formula: see text]). Therefore, the facile synthesis approach and superb electrochemical performance ensure that the walnut shells-derived porous carbon is a promising electrode material candidate for supercapacitors.

Nanocrystalline Li–Al–Mn–Si Foil as Reversible Li Host: Electronic Percolation and Electrochemical Cycling Stability

Nano Letters ◽  
2019 ◽  
Vol 20 (2) ◽  
pp. 896-904 ◽  
Author(s):  
Huimin Fan ◽  
Bo Chen ◽  
Sa Li ◽  
Yue Yu ◽  
Hui Xu ◽  
...  
Keyword(s):  
Cycling Stability ◽  
Electrochemical Cycling

Integrated, Flexible Lithium Metal Battery with Improved Mechanical and Electrochemical Cycling Stability

2019 ◽  
Vol 2 (5) ◽  
pp. 3642-3650 ◽  
Author(s):  
Shaowen Li ◽  
Yue Ma ◽  
Jin Ren ◽  
Huanyan Liu ◽  
Kun Zhang ◽  
...  
Keyword(s):  
Cycling Stability ◽  
Lithium Metal ◽  
Electrochemical Cycling ◽  
Lithium Metal Battery

The controlled synthesis and improved electrochemical cyclability of Mn-doped α-Fe2O3 hollow porous quadrangular prisms as lithium-ion battery anodes

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7604-7610 ◽  
Author(s):  
Xinru Liu ◽  
Chenhao Zhao ◽  
Fan Feng ◽  
Faqi Yu ◽  
Wenpei Kang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Controlled Synthesis ◽  
Electrochemical Cycling ◽  
Mn Doped

The controlled synthesis of anode material Mn-doped α-Fe2O3 hollow porous quadrangular prisms with an enhanced electrochemical cycling stability is reported.

Improving Electrochemical Cycling Stability of Ni‐rich LiNi 0.91 Co 0.06 Al 0.03 O 2 Cathode Materials through H 3 BO 3 and Y 2 O 3 Composite Coating

2020 ◽  
Vol 7 (23) ◽  
pp. 4730-4736
Author(s):  
Ke Xu ◽  
Liang Kou ◽  
Cheng Zhang ◽  
Chao Zhang ◽  
Jing Sun ◽  
...  
Keyword(s):  
Composite Coating ◽  
Cathode Materials ◽  
Cycling Stability ◽  
Electrochemical Cycling

Understanding the mechanism of enhanced cycling stability in Sn-Sb composite Na-ion battery anodes: in-operando alloying and diffusion barriers

2019 ◽  
Author(s):  
W. Peter Kalisvaart ◽  
Hezhen Xie ◽  
Brian Olsen ◽  
Erik Luber ◽  
Jillian Buriak
Keyword(s):  
High Capacity ◽  
Positive Influence ◽  
Cycling Stability ◽  
Thin Layers ◽  
Sodium Ion ◽  
Clear Correlation ◽  
Capacity Retention ◽  
Intimate Contact ◽  
Electrochemical Cycling ◽  
In Operando

Sn-Sb composites are of great interest for high capacity sodium ion batteries due to their high stability, but because multiple phases and alloyed compositions are formed during cycling, the roles of each are challenging to deduce. In this work, two approaches were taken to investigate the importance of β-SnSb formation on the cycling stability of Sn-rich Sn-Sb composite sodium-ion battery (SIB) anodes. First, to tease out the role of each component, thin layers of amorphous silicon with thicknesses ranging from 0.5 to 10 nm, were incorporated between Sn and Sb layers, of equal thicknesses. Silicon has low solubility in both tin and antimony, and thus acts as a barrier layer that can interfere with the formation of Sn-Sb alloys. The equivalent composition of this sandwich structure was Sn<sub>53</sub>Sb<sub>47</sub>. Upon electrochemical cycling, a clear correlation between capacity retention and Si thickness was observed, and it was found that a 1 nm thick Si layer was sufficient to inhibit the formation of the β-SnSb intermetallic, resulting in loss of the capacity of the tin layer after a few tens of cycles. The second approach involved capping a Sn film with increasingly thicker Sb layers. Thicker antimony layers were found to have a large positive influence on cycling stability with a marked drop-off in the capacity retention when there is not enough Sb to fully convert the bilayer into β-SnSb. These results point to the necessity of the Sn and Sb being in intimate contact prior to cycling for the β-SnSb phase to form in-operando, which is necessary for the excellent capacity retention of the Sn-Sb system.

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