Carbon Nanomaterials for Flexible Energy Storage

Abstract

Flexible energy storage systems have substantial inherent advantages in comparison with many currently employed systems due to improved versatility, performance and potentially lower cost. The research within this field is currently undergoing tremendous developments as new materials, composites and large-scale assembly strategies are being developed. In this review, we summarize recent progresses toward the development of flexible electrodes based on carbonaceous nanomaterials with particular emphasis on rational electrode design. Strategies to assemble flexible electrodes, both with and without inert mechanical supports, are reviewed and compared. Depending on their composition, the flexible electrodes can be used in important energy storage systems including supercapacitors and lithium ion batteries. The trend on future developments is also analyzed.

Turning Perspective in Photoelectrocatalytic Cells for Solar Fuels

“…conversion. Significant advances were recently made in nanomaterials for energy storage, [8,[24][25][26][27][28][29][30] but ag ap of about one order of magnitude likely still exists in terms of energy densities with respect to fossil fuels. Currentb atteries have ag ravimetric energy density of approximately 0.1-0.2 MJ kg À1 ,w hich may be expected to increaseu pt o0 .5-0.8 MJ kg À1 ;t his value is still largely lower than that of current fuels ( % 45 MJ kg À1 ).…”

Heterogeneous Nanostructures for Sodium Ion Batteries and Supercapacitors

“…In the beginning, electrode materials for supercapacitors were mainly carbon-based because of their large electrical doublelayer capacitance. [92][93][94] Later on researchers found that pseudocapacitors based on metal oxides have am uch higher storage capacityt han EDLCs. In particular, transition metal oxidest hat combine electronic and ionic conductivity are important active components for electrochemical devices.…”

“…Specific energy-storage devices possessing characteristics of flexibility,l ight weight, and safety will meet the large proliferation of consumer electronics, and flexible and wearable supercapacitors have been conceivedi na rrays of applications. [92] The concept of smart garments embedded with textile supercapacitors was first proposed by the Gogotsi research group. [162] The energy-storing textiles are mainly based on coated energy textiles and fiber or yarn electrodes.…”

Electrocatalytic Water Oxidation by MnOx/C: In Situ Catalyst Formation, Carbon Substrate Variations, and Direct O2/CO2 Monitoring by Membrane‐Inlet Mass Spectrometry

“…[27] This is especiallyt rue for carbon nanotubes, [28,29] which are used as catalysts upports in fuel cells, redox flow batteries, lithium ion batteries, or supercapacitors. [30][31][32][33][34] Nanostructured carbon substrates offer some unique advantages for ap otentialu se as catalysts upport materials: high electrical conductivity;h igh chemicala nd electrochemical inertness over aw ide pH range;h igh thermala nd mechanical stability; the possibility to chemically or physically modify their surfaces;ahigh structural diversity owing to the existence of different polymorphs; and finally agood availability and affordable price.…”