Development and characterization of tin based anode materials for Li-Ion batteries

Date

2018

Author

Yılmaz, Emre

Metadata

Show full item record

Item Usage Stats

172
views

0
downloads

Li-ion batteries are the most popular type of portable secondary batteries. They generate electrons at anode electrode during discharging process by releasing $Li^+$ ions from anode, in which graphite is used as Li reservoir. Recently, $SiO_2$ and Tin (IV) Oxide materials are investigated as anode materials by researchers, due to their very high theoretical capacity. There are two problems, however, limiting their use which are pulverization and irreversible reaction problems. These problems are, also, the causes of the capacity loss during charge-discharge cycles. To solve these problems, tools of nanotechnology are used to obtain different nanostructures. Doping with elements is another way to improve properties. In this study, tin based anode materials was developed for lithium ion batteries. For the production of materials, hydrothermal method was used. The effect of hydrothermal processing parameters and alloying elements such as La, W, Y and Zr were investigated. Produced materials were characterized by SEM, TEM also XRD for structural analysis and EDS were used for chemical analysis. Samples will be assembled in coin cells and galvanostatic charge-discharge, cyclic voltammetry and electrochemical impedance spectoscopy techniques were applied for their electrochemical characterization.

Subject Keywords

Lithium ion batteries., Storage batteries., Anodes., Tin.

URI

http://etd.lib.metu.edu.tr/upload/12621908/index.pdf
https://hdl.handle.net/11511/27157

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Development and characterization of tungstates and molybdates for li-ion batteries Kaygusuz, Burçin; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2016) In recent years, the need for portable power, lithium ion batteries dominate the markets because of their advantages. Metal tungstates and molybdates (Metals: Fe, Ni, Co, Mn, Zn, Mg) are two important families of inorganic materials and have found many applications in various fields, such as catalysis, magnetic applications, humidity sensors, and photoluminescence. However, their use in energy storage applications is almost none. The tungstates and molybdates adapt monoclinic crystal structure and crystalli...
Synthesis of Graphene-MoS2 composite based anode from oxides and their electrochemical behavior Sarwar, Saira; Karamat, Shumaila; Saleem Bhatti, Arshad; Aydınol, Mehmet Kadri; Oral, Ahmet; Hassan, Muhammad Umair (2021-10-16) High energy storage capacity and longer life span make rechargeable Li-ion batteries the first choice in portable electronics. Here, a graphene-MoS2 composite material is investigated as a potential electrode material which enhances the electrochemical storage ability of the Li-ion batteries (LIBs). Graphene-MoS2 composite is synthesized from graphene oxide (GO), molybdenum trioxide and thiourea via hydrothermal route. Formation of graphene-MoS2 composite (molar ratio 1:2) is confirmed by X-ray diffraction ...
Modeling of reaction and degradation mechanisms in lithium-sulfur batteries Erişen, Nisa; Külah, Görkem; Department of Chemical Engineering (2019) Lithium-sulfur batteries are promising alternatives for the energy storage systems beyond Li-ion batteries due to their high theoretical specific energy (2567 Wh/kg) in addition to the natural abundancy, non-toxicity and low cost of sulfur. The reaction and degradation mechanisms in a Li-S battery include various electrochemical and precipitation/dissolution reactions of sulfur and polysulfides; however, the exact mechanism is still unclear. In this study, the effect of critical cathode design parameters su...
Production and characterization of nano silver oxide for silver zinc batteries Yurtseven, Özüm Öyküm; Aydınol, Mehmet Kadri; Nalbant Esentürk, Emren; Department of Micro and Nanotechnology (2013) Rechargeable silver-zinc batteries have aroused interest and find various area of usage depending on their notably technical advantages over other battery systems including their high specific energy and high recharge efficiency. In this battery chemistry, silver oxide and metallic zinc are used as the positive and negative active materials respectively. Chemically stabilized particles with large surface areas are needed to reach high discharge rates for battery applications. The use of nanoparticles as ele...
Development and characterization of high power density cathode materials for lithium-ion batteries Doğu, Şafak; Aydınol, Mehmet Kadri; Evis, Zafer; Department of Micro and Nanotechnology (2015) In this thesis, facile and cost efficient aqua based synthesis method is developed to synthesize power dense and fast rechargeable LiFePO4 cathode materials. In order to obtain nano sized crystal morphology, nucleation controlled techniques were studied on precursor synthesis. These techniques are freeze (cryogenic) drying with co-precipitation and ultrasound assisted sub-sequential precipitation with vacuum drying at low temperatures (<350 K). In co-precipitation with freeze drying synthesis, star-like pla...

Citation Formats

E. Yılmaz, “Development and characterization of tin based anode materials for Li-Ion batteries,” M.S. - Master of Science, Middle East Technical University, 2018.