Electrospinning: designed architectures for energy conversion and storage devices

Abstract

International audienceElectrospinning is attracting close interest as a versatile fabrication method for one dimensional mesostructured organic, inorganic and hybrid nanomaterials of controlled dimensions prepared as randomly oriented or oriented continuous nanofibres that can present internal compositional organisation such as core-sheath, hollow or porous fibre, or even multichannel microtube arrangements. The dimensionality, directionality and compositional flexibility of electrospun nanofibres and mats are increasing being investigated for the targeted development of electrode and electrolyte materials. Specific properties associated with the nano-scale features such high surface to volume and aspect ratios, low density and high pore volume allow performance improvements in energy conversion and storage devices. We review here the application of electrospinning for designing architectured nanofibre materials for dye sensitised solar cells, fuel cells, lithium ion batteries and supercapacitors, with particular emphasis on improved energy and power density imparted by performance improvement to, inter alia, ionic conductivity, cyclability, reversibility, interfacial resistance and electrochemical stability, as well as mechanical strength, of electrospun electrode and electrolyte components

Nb-Doped TiO2 Nanofibers for Lithium Ion Batteries

“…Recent years have witnessed a growing development of electrospun TiO 2 -based electrodes for lithium-ion batteries, fuel cells and other conversion and energy storage devices. [16][17][18][19][20] Various methods are pursued to further enhance the performance of electrospun titania when 2 used as an active insertion material in LIB. One of them is the preparation of composite nanostructured electrodes interconnecting titania with a conducting additive nanophase (based on carbon), which improves the electron transfer.…”

Biochemical and Biophysical Cues in Matrix Design for Chronic and Diabetic Wound Treatment

“…The technology has a long history of development and was first proposed to produce electrospun fibers in the late 1930s. 214 Nowadays, electrospinning technology has found numerous applications in science and technology ranging from biomedicine, 215 fabrication of functional composites, 216 filtration, 217 energy, 218 and electronics. 219 In particular, electrospinning is a powerful technique to provide structures similar to the collagen structure in the ECM.…”

Facile Fabrication of Micro-Nano Structured Triboelectric Nanogenerator with High Electric Output

“…However, these methods are either complicated or costly. Electrospinning is one of the novel fiber fabrication techniques because it is easy to produce continuous polymer fibers with diameters ranging from several nanometers to micrometers [15][16][17]. Using electrospinning to prepare nanowire-based TENG simplifies the preparation process and reduces the cost [18].…”