A Composite Porous Membrane Based on Derived Cellulose for Transient Gel Electrolyte in Transient Lithium-Ion Batteries

Abstract

The transient lithium-ion battery is a potential candidate as an integrated energy storage unit in transient electronics. In this study, a mechanically robust, transient, and high-performance composite porous membrane for a transient gel electrolyte in transient lithium-ion batteries is studied and reported. By introducing a unique and controllable circular skeleton of methylcellulose to the carboxymethyl cellulose-based membrane, the elastic modulus and tensile strength of the composite porous membrane (CPM) are greatly improved, while maintaining its micropores structure and fast transiency. Results show that CPM with 5% methylcellulose has the best overall performance. The elastic modulus, tensile strength, porosity, and contact angle of the optimized CPM are 335.18 MPa, 9.73 MPa, 62.26%, and 21.22°, respectively. The water-triggered transient time for CPM is less than 20 min. The ionic conductivity and bulk resistance of the CPM gel electrolyte are 0.54 mS cm−1 and 4.45 Ω, respectively. The obtained results suggest that this transient high-performance CPM has great potential applications as a transient power source in transient electronics.

Degradable Green Polymers, Green Nanopolymers and Green Nanocomposites Derived from Natural Systems: Statistics and Headways

“…The transient supercapacitor had power of 120 kW kg -1 and may operate above 1.5 V. The transient batteries have also been constructed using the green nanomaterials [137]- [139]. In this regard, a cellulosebased transient lithium-ion battery has been reported by Chen et al [140]. The ionic conductivity and bulk resistance of 0.54 mScm -1 and 4.45 Ω, respectively, have been observed for the transient lithium-ion battery.…”

Electrospun Sandwich-like Structure of PVDF-HFP/Cellulose/PVDF-HFP Membrane for Lithium-Ion Batteries

“…One such technology is the lithium-ion battery, which is widely used due to its high capacity, lack of memory effect, low self-discharge, and stable output voltage [ 8 , 9 , 10 ]. However, lithium dendrites generated during charging and discharging cycles can easily pierce conventional polyolefin-based separators [ 11 ], making it crucial for separators to possess good electrolyte wettability, high mechanical strength, high thermal/dimensional/chemical stability, and superior electrochemical performance, especially for power batteries [ 12 , 13 , 14 ]. Due to their low porosity, intrinsic non-polar nature, and low melting points, conventional commercially available polyolefin-based separators are associated with unsatisfactory electrolyte wettability and thermal shrinkage at high temperatures, ultimately leading to battery safety accidents and impeding the electrochemical performance of lithium-ion batteries [ 15 ].…”