Electrochemical Behavior of Li4Ti5O12 under In Situ Process of Sintering and Surface Coating with Cassava Powder

Bambang Prihandoko; Achmad  Subhan; Slamet  Priyono

doi:10.4028/www.scientific.net/AMR.789.21

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Electrochemical Behavior of Li₄Ti₅O₁₂ under In Situ Process of Sintering and Surface Coating with Cassava Powder
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 789Electrochemical Behavior of Li4Ti5O12 under In...

Electrochemical Behavior of Li₄Ti₅O₁₂ under In Situ Process of Sintering and Surface Coating with Cassava Powder

Abstract:

Anode active material Li₄Ti₅O₁₂/C has an advantage to increase the life time and the ability to charge and discharge lithium batteries. An experiment was carried out to make Li₄Ti₅O₁₂/C more cheaper and simple process. Preparation of Li₄Ti₅O₁₂/C was carried out with stoichiometric composition of raw materials TiO₂ (Merck) and LiOH.H₂O (Germany) under powder metallurgy method. After mixing and calcinations cassava starch as a source of carbon black coating could be mixed under comparison 1:1 with calcinations powders. Pyrolisis process was done in - situ by the sintering process at temperature variation, i.e. 800, 850 and 900°C for 1 hour. XRD test results indicated the presence of anatase TiO₂ entire sample. The best results of powder Li₄Ti₅O₁₂/C with in situ process under 850°C for 1 hour had conductivity in the order of 10^-4S/cm and capacity round 5mAh/g. Carbon coating of cassava starch that is well identify in the black color of sample powder and EDX analysis, gave influence on electrochemical graphics of oxidation and reduction by cyclic voltammeter. The working voltage of Li₄Ti₅O₁₂/C is in general 1.55V.

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Advanced Materials Research (Volume 789)

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21-27

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https://doi.org/10.4028/www.scientific.net/AMR.789.21

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Online since:

September 2013

Authors:

Bambang Prihandoko, Achmad Subhan, Slamet Priyono

Keywords:

Anode Active Material, Cassava, Electrochemical, Li₄Ti₅O₁₂/C, Lithium Battery

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