In-plane β-Co(OH)2/Co3O4 hybrid nanosheets for flexible all-solid-state thin-film supercapacitors with high electrochemical performance

Nanoscale ◽  
2020 ◽  
Vol 12 (47) ◽  
pp. 24251-24258
Author(s):  
Shanshan Lou ◽  
Xueying Yang ◽  
Pin Hao ◽  
Fengcai Lei ◽  
Junfeng Xie ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Porous Surface

In-plane β-Co(OH)2/Co3O4 hybrid nanosheets with porous surface and controllable composition were fabricated as efficient electrode materials for the all-solid-state thin-film supercapacitors (ASSTFSs).

Comparative study of electrochemical performance of commercial solid-state thin film Li microbatteries

2018 ◽  
Vol 649 ◽  
pp. 69-74 ◽  
Author(s):  
Barbara Laïk ◽  
Isabelle Ressejac ◽  
Cécile Venet ◽  
Jean-Pierre Pereira-Ramos
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Comparative Study ◽  
Electrochemical Performance

Enhanced energy density of flexible asymmetric solid state supercapacitor device fabricated with amorphous thin film electrode materials

2020 ◽  
Vol 141 ◽  
pp. 109425 ◽  
Author(s):  
Dhanaji B. Malavekar ◽  
Vaibhav C. Lokhande ◽  
Vikas J. Mane ◽  
Shivaji B. Ubale ◽  
Umakant M. Patil ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Energy Density ◽  
Electrode Materials ◽  
Film Electrode ◽  
Thin Film Electrode ◽  
Amorphous Thin Film

scholarly journals High Electrochemical Performance Silicon Thin-Film Free-Standing Electrodes Based on Buckypaper for Flexible Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2053
Author(s):  
Oyunbayar Nyamaa ◽  
Duck-Hyeon Seo ◽  
Jun-Seok Lee ◽  
Hyo-Min Jeong ◽  
Sun-Chul Huh ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrical Conductivity ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Electronic Devices ◽  
High Capacity ◽  
Lithium Ion ◽  
Free Standing ◽  
Power Sources ◽  
Current Collectors

Recently, applications for lithium-ion batteries (LIBs) have expanded to include electric vehicles and electric energy storage systems, extending beyond power sources for portable electronic devices. The power sources of these flexible electronic devices require the creation of thin, light, and flexible power supply devices such as flexile electrolytes/insulators, electrode materials, current collectors, and batteries that play an important role in packaging. Demand will require the progress of modern electrode materials with high capacity, rate capability, cycle stability, electrical conductivity, and mechanical flexibility for the time to come. The integration of high electrical conductivity and flexible buckypaper (oxidized Multi-walled carbon nanotubes (MWCNTs) film) and high theoretical capacity silicon materials are effective for obtaining superior high-energy-density and flexible electrode materials. Therefore, this study focuses on improving the high-capacity, capability-cycling stability of the thin-film Si buckypaper free-standing electrodes for lightweight and flexible energy-supply devices. First, buckypaper (oxidized MWCNTs) was prepared by assembling a free stand-alone electrode, and electrical conductivity tests confirmed that the buckypaper has sufficient electrical conductivity (10−4(S m−1) in LIBs) to operate simultaneously with a current collector. Subsequently, silicon was deposited on the buckypaper via magnetron sputtering. Next, the thin-film Si buckypaper freestanding electrodes were heat-treated at 600 °C in a vacuum, which improved their electrochemical performance significantly. Electrochemical results demonstrated that the electrode capacity can be increased by 27/26 and 95/93 μAh in unheated and heated buckypaper current collectors, respectively. The measured discharge/charge capacities of the USi_HBP electrode were 108/106 μAh after 100 cycles, corresponding to a Coulombic efficiency of 98.1%, whereas the HSi_HBP electrode indicated a discharge/charge capacity of 193/192 μAh at the 100th cycle, corresponding to a capacity retention of 99.5%. In particular, the HSi_HBP electrode can decrease the capacity by less than 1.5% compared with the value of the first cycle after 100 cycles, demonstrating excellent electrochemical stability.

Flexible solid-state supercapacitors based on a conducting polymer hydrogel with enhanced electrochemical performance

2014 ◽  
Vol 2 (46) ◽  
pp. 19726-19732 ◽  
Author(s):  
Kai Wang ◽  
Xiong Zhang ◽  
Chen Li ◽  
Haitao Zhang ◽  
Xianzhong Sun ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Conducting Polymer ◽  
High Performance ◽  
Electrode Materials ◽  
Solid Materials ◽  
Polymer Hydrogel ◽  
Polymer Hydrogels ◽  
Enhanced Electrochemical Performance

Conducting polymer hydrogels instead of traditional solid materials are used as the electrode materials to prepare high-performance flexible solid-state supercapacitors.

Layer-by-layer β-Ni(OH)2/graphene nanohybrids for ultraflexible all-solid-state thin-film supercapacitors with high electrochemical performance

Nano Energy ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Junfeng Xie ◽  
Xu Sun ◽  
Ning Zhang ◽  
Kun Xu ◽  
Min Zhou ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Electrochemical Performance ◽  
Layer By Layer
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