Abstract
Abstract
In this work, we report a flexible nanofibrous cellulose nanocomposite with great potential for lithium-ion battery (LiB) polymer electrolyte. Flexible and fibrous material is synthesized using a simple and easy technique by synergistically combining carboxymethyl cellulose (CMC) and glycerol (Gly). Flexible porous cellulose forms a three-dimensional network for the mobility of Li ions in the polymer electrolyte of LIB systems. We investigated the effect ionic liquid of flexible fibrous cellulose (BC-CMC-Gly) on the electrochemical properties. The surface interaction between Li ions and the porous network is a key parameter demonstrated by the Li-ion emission line at 610.37 nm using laser inductance breakdown spectroscopy (LiBS). The ionic conductivity of BC-CMC-Gly characterized by EIS measurement is about 1.1 × 10−3 S cm−1. According to linear sweep voltammetry (LSV), BC-CMC-Gly, with a potential window of 4.3 V, shows a more expansive window voltage than pure BC (2.75 V) and BC-CMC (3.3 V). This indicates that the electrochemical stability is good, as wide as the range of voltages that the electrode reactions define. The specific capacity of BC-CMC-Gly containing IL is very high, about 27.6 mAh g−1 compared to BC (7.4 mAh g−1) and BC-CMC (11,5 mAh g−1). All these findings clearly show that forming plasticized structures synergistically with CMC trapped in the BC structure results in the largest Li-ion adsorption capacity and electrochemical performance improvement. Thermal stability up to 200 °C and electrolyte uptake of approx. 189% are the beneficial properties of BC-CMC-Gly fibrous cellulose for LiB electrolyte polymer.
Funder
Japan Society for the Promotion of Science (JSPS) KAKENHI Grants
Japan Society for the Promotion of Science (JSPS) RONPAKU Program
Department of Applied Chemistry, Graduate School of Engineering, Osaka University
Research Center for Advanced Materials, National Research and Innovation Agency
Advanced Characterization Laboratories, National Research and Innovation Agency
Subject
Metals and Alloys,Polymers and Plastics,Surfaces, Coatings and Films,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
3 articles.
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