Abstract
The purpose of this research is to know the influence of lithium chloride composition on membrane conductivity. Cellulose was extracted from pandan duri leaves (P. tectorius) by dilute alkaline and bleaching with 0.5% NaOCl followed by synthesis of cellulose acetate using acetic anhydride as acetylating agent, acetic acid as solvent and sulfuric acid as catalyst. The membranes were prepared by casting polymer solution method and the composition of CA/LiCl were 60/40, 65/35, 70/30, 75/25, 80/20 and 100/0. Structural analysis was carried out by FTIR and X-ray diffraction. The conductivity was measured using Elkahfi 100. The highest conductivity of cellulose acetate membrane was 2.20 × 10 -4 S cm -1 that measured at room temperature for 65/35 composition
Highlights
Nowadays, many people in this century are using portable electronic devices such as smartphone, smartwatch, digital camera, laptop and tablet to support their daily activities
In this work cellulose acetate was obtained by cellulose acetylation from pandan duri leaves using acetic anhydride as acetylating agent
The absorbance peaks in the region 1511.91 cm1 and 1253.28 reflect the stretching of the C=C aromatic and C-O-C of lignin, respectively
Summary
Many people in this century are using portable electronic devices such as smartphone, smartwatch, digital camera, laptop and tablet to support their daily activities. Many of them are powered by lithium ion (Li-ion) battery due to its high energy density, lack of memory effect, long cycle life, high charge and discharge rate capabilities [1, 2] It has many advantages, Li-ion battery has safety problem due to the using of liquid electrolyte that flammable and combustible, replacement of liquid electrolytes with polymer electrolytes is the best solution to the safety problem of li-ion battery [3]. Cellulose acetate (CA) membrane is the most common polymer electrolyte used, synthesized from cellulose of natural fibre [4]. One of the natural fibre plant is Pandan duri. Pandan duri (Pandanus tectorius) is a plant from Pandanaceae family, which productively grow in this land. The aim of this work is to know the influence of lithium chloride composition on membrane conductivity
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