Sustainable energy storage devices using laser-induced graphene electrodes
Ormaetxea Orobengoa, Joseba M.
Torres, Francesc, 1948-, dir. (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Universitat Autònoma de Barcelona. Facultat de Ciències

Date:	2021
Abstract:	This project presents the development of laser-induced graphene (LIG) electrodes for application on sustainable electrochemical energy storage devices. Cardboard is selected as organic recyclable substrate, upon which fire-retardant treatments and lignin coatings have been tested prior to laser scribing. Laser conditions optimization have provided a cardboard derived conductor material with sheet resistance (Rs) values in the order of tens of Ω·sq-1. Particularly, a newly developed lignin and nanocellulose coating treatment of cardboard has yielded 8. 1 Ω·sq-1 Rs, close to the best value reported for LIG on an organic substrate. Electrochemical and morphological characterization of cardboard based LIG showed that it presents a highly porous 3D electroactive surface. This material has been implemented in the fabrication of cardboard derived supercapacitors (SC) and batteries. Compared with polyimide derived LIG, cardboard SCs demonstrate higher areal capacitance (1 mF·cm-2), with similar performance to literature references. On the other hand, the biopolymer-based cardboard battery is the first proof-of-concept of its kind ever reported. Although it presents high internal resistance, the battery provides almost 1 V open circuit voltage, and a maximum power density output of 19. 5 µW·cm-2. Thus, this work opens a new pathway in the research of potentially recyclable, biodegradable or even compostable batteries based on cardboard derived laserinduced graphene electrodes.
Note:	Premi UAB de la Fundació Autònoma Solidària (FAS) als millors Treballs de Fi de Grau sobre desenvolupament sostenible i justícia global. 5a Edició, curs 2020/2021
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.
Language:	Anglès
Studies:	Nanociència i Nanotecnologia [2501922]
Study plan:	Grau en Nanociència i Nanotecnologia [983]
Document:	Treball final de grau
Subject:	Laser-induced graphene ; Cardboard ; Energy storage devices ; Supercapacitor ; Battery

48 p, 3.9 MB

The record appears in these collections:
Research literature > Bachelor's degree final project > Bachelor's degree final projects award-winning
Research literature > Bachelor's degree final project > Sciences Faculty