Carbon additive effect on the electrochemical performances of inkjet printed thin-film Li4Ti5O12 electrodes

2021 ◽  
Vol 72 ◽  
pp. 411-418
Author(s):  
Prisca Viviani ◽  
Eugenio Gibertini ◽  
Filippo Iervolino ◽  
Marinella Levi ◽  
Luca Magagnin
2008 ◽  
Vol 179 (35-36) ◽  
pp. 2011-2015 ◽  
Author(s):  
T MATSUMURA ◽  
N IMANISHI ◽  
A HIRANO ◽  
N SONOYAMA ◽  
Y TAKEDA

2013 ◽  
Vol 13 (5) ◽  
pp. 3313-3316 ◽  
Author(s):  
Ho-Jin Yun ◽  
Kyu-Ha Baek ◽  
Lee-Mi Do ◽  
Kwang-Seok Jeong ◽  
Yu-Mi Kim ◽  
...  

2020 ◽  
Vol 208 ◽  
pp. 110409 ◽  
Author(s):  
Masashi Murata ◽  
Tomohisa Oizumi ◽  
Meigen Gi ◽  
Ryotaro Tsuji ◽  
Makoto Arita ◽  
...  

Author(s):  
Yongsong Xie ◽  
Roberto Neagu ◽  
Ching-Shiung Hsu ◽  
Xinge Zhang ◽  
Cyrille Decès-Petit ◽  
...  

Two techniques of spray pyrolysis, namely, electrostatic and pneumatic spray deposition, were used to deposit samaria-doped ceria (SDC) electrolyte and lanthanum strontium cobalt ferrite (LSCF) cathode on cermet or metal supported anodes for solid oxide fuel cells (SOFCs) operated at reduced temperature. The deposition processes, the properties of the deposited films, and the electrochemical performances of the fabricated cells are reported in this paper. The deposited SDC electrolytes were dense and gas-tight, and had good adhesion to the underlying anodes. The deposited LSCF cathode had a preferred morphology to facilitate the transport of oxygen gas and effective contact with the electrolyte. Button cell testing indicated that the SOFCs with electrolyte or cathode deposited by spray pyrolysis had good electrochemical performance. This study demonstrated that spray pyrolysis is a cost-effective process for fabricating thin film SOFCs, especially metal supported SOFCs.


2021 ◽  
Vol 5 (1) ◽  
pp. 13
Author(s):  
Annalisa Scroccarello ◽  
Flavio Della Pelle ◽  
Qurat Ul Ain Bukhari ◽  
Filippo Silveri ◽  
Daniele Zappi ◽  
...  

Carbonaceous-based nanomaterials (C-NMs) are the pillar of myriad sensing and catalytic electrochemical applications. In this field, the search for environmentally sustainable C-NMs from renewable sources became a duty in the development of nano-sensors. Herein, water-soluble carbon nanofibers (CF) were produced from eucalyptus scraps-based biochar (BH) through an ultrasound treatment, assisted by sodium cholate used as a stabilizing agent. Noteworthy, thanks to the use of the bio-stabilizing agent, the nanofibers were dispersed in water avoiding the use of organic solvents. The BH-CF was investigated as sensing material onto commercial screen-printed electrodes via drop-casting (BH-SPE) and as thin-film fully integrated into a lab-made flexible electrode. The thin film was produced via BH-CF vacuum filtration followed by the film transferring to a thermo-adhesive plastic substrate through thermal lamination. This approach gave rise to a conductive BH-CF film (BH-Film) easily embodied in a lab-made electrode produced with office-grade instrumentation (i.e., craft-cutter machine, thermal laminator) and materials (i.e., laminating pouches, stencil). The BH-CF amount was optimized and the resulting film morphologically characterized, then, the electrochemical performances were studied. The BH-CF electrochemical features were investigated towards a broad range of analytes containing phenol moieties, discrimination between orto- and mono-phenolic structures were achieved for all the studied compounds. As proof of applicability, the BH-CF-based sensors were challenged for simultaneous determination of mono-phenols and ortho-diphenols in olive oil extracts. LODs ≤ 0.5 μM and ≤ 3.8 μM were obtained for hydroxytyrosol (o-diphenol reference standard) and Tyrosol (m-phenols reference standard), respectively. Moreover, a high inter-sensors precision (RSD calibration-slopes ≤ 7%, n = 3) and quantitative recoveries in sample analysis (recoveries 91–111%, RSD ≤ 6%) were obtained. Here, a solvent-free strategy to obtain water-soluble BH-CF was proposed, and their usability to sensor fabrication and modification proved. This work demonstrated as cost-effective and sustainable renewable sources, rationally used, can lead to obtain useful nanomaterials.


2010 ◽  
Vol 157 (3) ◽  
pp. A289 ◽  
Author(s):  
Chen Chung Chen ◽  
Kuo-Feng Chiu ◽  
Kun Ming Lin ◽  
Hsin Chih Lin ◽  
Chang-Rung Yang ◽  
...  

2020 ◽  
pp. 6-22 ◽  
Author(s):  
Xufeng Yan ◽  
Weiqiang Han

All-solid-state batteries (ASSBs) have attracted much attention in recent years, due to their high energy density, excellent cycling performance, and superior safety property. As the key factor of all-solid-state batteries, solid electrolyte determines the performance of the batteries. Garnet-typed cubic Li7La3Zr2O12(LLZO) has been reported as the most promising solid electrolyte on the way to ASSBs. Thin film electrolyte could contribute to a higher energy density and a lower resistance in a battery. This short review exhibits the latest efforts on LLZO thin film and discusses the different preparation methods, together with their effects on characteristics and electrochemical performances of the solid electrolyte film.


Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 726 ◽  
Author(s):  
Hoseong Han ◽  
Sunghun Cho

Silica-conducting polymer (SiO2-CP) has the advantages of high electrical conductivity, structural stability, and the facile formation of thin-film. This work deals with the preparation and optimization of polypyrrole (PPy)-encapsulated silica nanoparticles (SiO2 NPs) using an ex situ method. The SiO2-PPy core-shell NPs prepared by the ex situ method are well dispersed in water and facilitate the mass production of thin-film electrodes with improved electrical and electrochemical performances using a simple solution process. As-prepared SiO2-PPy core-shell NPs with different particle sizes were applied to electrode materials for two-electrode supercapacitors based on coin cell batteries. It was confirmed that the areal capacitance (73.1 mF/cm2), volumetric capacitance (243.5 F/cm3), and cycling stability (88.9% after 5000 cycles) of the coin cell employing the ex situ core-shell was superior to that of the conventional core-shell (4.2 mF/cm2, 14.2 mF/cm3, and 82.2%). Considering these facts, the ex situ method provides a facile way to produce highly-conductive thin-film electrodes with enhanced electrical and electrochemical properties for the coin cell supercapacitor application.


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