Moringa oleifera gum-based bio-membrane electrolyte for lithium-ion conducting battery applications

IF 2.4 4区化学 Q3 CHEMISTRY, PHYSICAL Ionics Pub Date : 2024-09-30 DOI:10.1007/s11581-024-05852-3

N. Muniraj Vignesh, M. Vengadesh Krishna, S. Selvasekarapandian, S. Aafrin Hazaana, R. Meera Naachiyar

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Abstract

Lithium-ion conducting bio-membranes based on Moringa oleifera gum (MOG) and LiNO₃ are fabricated through the solution casting method. Samples containing 1 g MOG incorporated with 0.6 to 0.8 mol.wt% LiNO₃ salt concentrations are prepared. The amorphous nature of the prepared samples is verified through XRD analysis. The glass transition temperature of the prepared samples is measured by DSC technique. AC impedance spectroscopy indicates that the sample 1 g MOG + 0.8 mol.wt% LiNO₃ gives the highest ionic conductivity measured as 5.46 × 10⁻³ S/cm. Additionally, CV, LSV, and transference number studies are taken for the highest ion conducting sample to evaluate its electrochemical stability. A primary lithium-ion conducting battery is constructed by using the highest ion conducting sample as an electrolyte for the system and the open circuit voltage is observed as 2.19 V. Then, a rechargeable lithium-ion conducting coin cell is constructed, and its performances are studied.

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应用于锂离子传导电池的基于辣木油树胶的生物膜电解质

通过溶液浇铸法制备了基于辣木油树胶（MOG）和 LiNO3 的锂离子导电生物膜。制备的样品含有 1 克 MOG 和 0.6 至 0.8 mol.wt% 的 LiNO3 盐浓度。通过 XRD 分析验证了所制备样品的无定形性质。制备样品的玻璃化转变温度是通过 DSC 技术测量的。交流阻抗光谱显示，样品 1 g MOG + 0.8 mol.wt% LiNO3 的离子电导率最高，达到 5.46 × 10-3 S/cm。此外，还对离子导电率最高的样品进行了 CV、LSV 和转移数研究，以评估其电化学稳定性。使用导电率最高的离子样品作为系统的电解质，构建了一个原生锂离子导电电池，观察到其开路电压为 2.19 V。

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来源期刊

Ionics 化学-电化学

CiteScore

5.30

自引率

7.10%

发文量

427

审稿时长

2.2 months

期刊介绍： Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.