摘要:
使用二氧化钛作为初始钛源,碳酸锂作为初始锂源,应用纯固相合成方法,在深入研究钛酸锂材料反应合成原理的基础上,通过调节Li/Ti比例为:0.8、0.85、0.9,合成不同的钛酸锂样品。使用TGA-DSC、XRD、SEM、TEM、恒流充放电等物相分析、电化学表征手段,深入研究不同固相合成工艺条件,对钛酸锂材料物相结构、表观形貌的影响,同时将其制备成2016纽扣电池,研究了首次库伦效率。
Abstract:
Using titanium dioxide as the initial titanium source and lithium carbonate as the initial lithium source,lithium titanate samples were synthesized via solid phase routes with adjusting the ratio of Li/Ti at0.8,0.85,0.9 respectively,based on a deep study of the reaction principles for lithium titanate synthesis.The effects of synthesis conditions on phase structure,apparent morphology and electrochemical properties of the prepared lithium titanate were investigated respectively by TGA-DSC,XRD,SEM,TEM and constant current charge/discharge characterizations.Meanwhile,2016 button batteries were prepared using the lithium titanate samples,and their initial coulombic efficiency was studied.
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