Preparation and Characterization of Spinel Based Anode and Cathode Electrodes for All Solid State Thin Film Lithium Ion Batteries

Abstract

Though there was a wide development in the field of battery technology, newlineminiaturization of all sorts of electronic gadgets and improvisations of energy harnessing newlinepaths paved the way for more explorations in this field. Ubiquitous use of Lithium-ion newlinebatteries for applications in mobility purpose has gained noteworthy attention through the newlinesheering research whereas the miniature versions (micro batteries) hold significant newlinepotential for an extensive range of applications, together with wearable electronics, newlineimplantable medical devices, Internet of Things (IoT) and micro electronic sensors. newlineThe current research directly encompasses and engages with the fundamental newlinemechanisms and principles that govern electrochemical energy system and conversion. The newlineresearch involves the design and fabrication of electrochemical cells and devices, newlineconsidering the factors such as cell architecture and electrode/electrolyte interfaces. These newlineaspects are crucial in maximizing the areal capacity and stability of the electrochemical newlinesystem. Additionally, this work incorporates the study of electrochemical reaction newlinemechanisms, transport phenomena, and degradation mechanisms. The electrode thin films newlineused in the study involves Li4Ti5O12 (LTO), LiFe5O8 (LFO), anode thin films and high newlinevoltage cathode material LiMn1.5Ni0.5O4 (LMNO). Current study primarily incorporates the newlinehalf-cell study for the as specified electrodes later on used for evaluating the compatibility newlineof LTO, LMNO electrodes along with the solid electrolyte Li0.33La0.56TiO3 (LLTO) for the newlinefabrication of full cell, thus exploring the compatibility of these advanced thin film newlineelectrode materials in half-cell and full-cell configurations.quot The electrochemical newlineperformance of cells containing anode or cathode films was validated, identifying newlinenecessary modifications to improve the LMNO/LLTO/LTO cell system. Entire thin films newlineprepared for the thesis work is fabricated via physical vapour deposition techniques like newlinePulsed Laser Deposition and RF Magnetron Sputter