Polyimides as Promising Materials for Lithium-Ion Batteries: A Review

Abstract

Lithium-ion batteries (LIBs) have helped revolutionize the modern world and are now advancing the alternative energy field. Several technical challenges are associated with LIBs, such as increasing their energy density, improving their safety, and prolonging their lifespan. Pressed by these issues, researchers are striving to find effective solutions and new materials for next-generation LIBs. Polymers play a more and more important role in satisfying the ever-increasing requirements for LIBs. Polyimides (PIs), a special functional polymer, possess unparalleled advantages, such as excellent mechanical strength, extremely high thermal stability, and excellent chemical inertness; they are a promising material for LIBs. Herein, we discuss the current applications of PIs in LIBs, including coatings, separators, binders, solid-state polymer electrolytes, and active storage materials, to improve high-voltage performance, safety, cyclability, flexibility, and sustainability. Existing technical challenges are described, and strategies for solving current issues are proposed. Finally, potential directions for implementing PIs in LIBs are outlined.

Polyimide Compounds For Post‐Lithium Energy Storage Applications

“…However solid state (ss) NMR is a useful and informative technique to analyze the as-synthesized polymers. Typical ss 13 C NMR (Figure 1b) gives eight peaks in the aromatic region from 184 to 103 ppm. [24] (Peaks for aliphatic carbons of ethylene diamine were not shown) whereas proton NMR (Figure 1c) gives a chemical shift for aromatic protons at 7.27 ppm and aliphatic at 4.16 ppm.…”

“…Even though PI has been utilized in rechargeable batteries during the last several decades, only recently Zhang et al published a review on the use of PI in batteries, but it was focused just on Li ion systems. [13] Current review aims at examining the synthesis, characterization, and electrochemical performance of polyimide electrodes, primarily focusing on their utilization in postlithium batteries. The energy storage performance of PIbased electrodes in different electrolyte environments and their interactions with a variety of mono and multivalent cations is thoroughly discussed herein.…”

“…Even though PI has been utilized in rechargeable batteries during the last several decades, only recently Zhang et al. published a review on the use of PI in batteries, but it was focused just on Li ion systems [13] …”

Porous, robust, thermally stable, and flame retardant nanocellulose/polyimide separators for safe lithium-ion batteries

“…2–5 Polyimide (PI), being a high-performance polymer, garners increasing attention due to its notable advantages including exceptional thermal stability, self-extinguishing properties, high chemical stability, and the ability to withstand demanding operating conditions. 6–10 Consequently, the utilization of PI has been initiated in the fabrication of separators as a means to enhance the safety of LIBs. 11–13 The performance of PI separators exhibits a strong correlation with their structure.…”

Metallization of Polyamide-imide for High-Frequency Communication by Polyethylenimine Modification and Electroless Copper Plating

“…Some researchers have acknowledged that modifying surface chemical activity is a crucial factor in achieving the successful synthesis of a high-quality metal layer on a polymer substrate. Meanwhile, chemical modification of polymer substrates by polyethylenimine (PEI) is regarded as an effective method for adjusting surface characteristics. − Yang et al grafted PEI onto the poly­(glycidyl methacrylate-divinylbenzene) substrate, which was subsequently hydrolyzed to convert residual epoxide groups on the surface of the polymer substrate into hydroxyl groups. Finally, quaternized PEI was achieved by using a molecule containing epoxide groups.…”