Abstract

Enhancing the ionic conductivity of solid polymer electrolytes and accelerating ion transport are pivotal challenges in achieving lithium‐ion batteries with high energy density and excellent electrochemical performance. In this study, amino‐modified porous aromatic frameworks (AMPAF) are prepared. The amino group in AMPAF stabilizes the anion through hydrogen bonding to reduce the dissociation energy barrier of Li+, enabling Li+ to be more easily dissociated from lithium salts. Additionally, the abundant pores of AMPAF promote the rapid transport of Li+. The prepared quasi‐solid polymer electrolyte (AMPAF‐QSPE) exhibited a high Li+ conductivity of 7.62 × 10−5 S cm−1 and a Li+ transference number as high as 0.55, which proves the restriction of the amino group in AMPAF on the movement of anions and the ability to dissociate lithium salts. The discharge specific capacity of Li//AMPAF‐QSPE//LiFePO4 reached as high as 137 mAh g−1 at 0.2 °C, and the capacity retention rate was stable at 85% after 200 cycles. This article presents an effective attempt to enhance the overall performance of polymer electrolytes using amino‐modified PAF, offering an innovative perspective for the development of electrochemical energy storage technologies.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.