Towards 3D-lithium ion microbatteries based on silicon/graphite blend anodes using a dispenser printing technique

Abstract

Silicon/carbon–graphite blend slurries designed for 3D-dispenser printed lithium ion microbatteries systematically characterized by rheological and electrochemical methods.

Sustainable Li‐Ion Batteries: Chemistry and Recycling

“…[52] Several approaches, namely, the employment of well-defined nanostructures and the application of functional coatings to counter the mechanical stress, have been used in order to improve the electrochemical performance of silicon-based electrodes. [49,[52][53][54][55][56][57][58][59] Some of these approaches yield capacities in the range of ≈3000 mAh g −1 at fairly acceptable current rates >C/5 over 1000 cycles. [52] Several start-up companies [60][61][62] exist trying to commercialize the technology in electric cars with some of them reporting successful integration, though a compromise using composites heavy on the carbon content seems to be inevitable at the moment.…”

3D printing and International Trade

“…In the healthcare and pharmaceutical industry there are different applications, including in the production of anatomical models, medical implants, pharmacological design and medical apparatus and instruments (see Aimar, Palermo and Innocenti (2019 [29]) and Fan et al (2020[30])). The technology is also increasingly being used to 3D print food using chocolate, cookie dough, and sugar powder (Dankar et al (2018[31])) and even meat (Dick, Bhandari and Prakash (2019 [32])). But the technology is also often associated with producing materially simple consumption items, such as phone accessories, kitchen utensils or keyrings (Wittbrodt et al, 2013[33]).…”

“…The Thingi10k dataset contains information on 10 000 'featured' design files, that relate to 2 011 'things' or objects, that were culled from the popular website Thingiverse from September 2009 to November 2015 (Zhou and Jacobson, 2016 [50]). 32 These 10 000 models form a sample of top-quality designs available to users on Thingiverse. 33 As such, these are items more likely to be in the "at home" or retail end of the market.…”

Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene): A New Binder for Conventional and Printable Lithium-Ion Batteries

“…The polymer binder has a particularly relevant role in the field of printed batteries, as it has a strong impact on the ink rheology and, therefore, on processability . In fact, rheological characterization is the best way to assess the role of particle migration and orientation in the printability of inks for batteries, though such aspects are not enough addressed in the literature as demonstrated in ref and references therein.…”

“…The polymer binder has a particularly relevant role in the field of printed batteries, as it has a strong impact on the ink rheology and, therefore, on processability. 31 In fact, rheological characterization is the best way to assess the role of particle migration and orientation in the printability of inks for batteries, though such aspects are not enough addressed in the literature as demonstrated in ref 32 and references therein. Furthermore, allied with the printing technique, the development of novel polymer binders with advanced properties and/ or functionalities (increasing adhesion, mechanical, and bending properties; high dielectric constant; and improved lithium percolation) when compared with the applied ones, is a very important topic to increase the electrochemical properties of the electrodes based on the relevant role of this component in battery performance.…”