Aug 15, 2023 · Herein, we propose a simple and effective strategy of introducing a small quantity of cationic COF additive EB-COF-TFSI into the PEO of low glass transition temperature to obtain high-performance solid-state electrolyte (SSEs) and Li batteries.

Dec 21, 2018 · Covalent organic frameworks (COFs) are an emerging class of crystalline organic polymers with periodic structure and tunable functionality, which exhibit potential as a unique ion conductor/transporter. Here, we describe the use of a COF as a …

May 1, 2023 · In this work, the synthesized COF material CPs-BT with aligned channels and skeletons benefit the ion transport and mechanical stability of SSEs. And we reversely add a little of the COF material, as a filler or additive, into PEO host to prepare PEO-based CPEs.

Nov 15, 2021 · Herein, we give a review of the state-of-the-art developments of COFs for energy storage, and especially focus on the two-dimensional (2D) COFs. First of all, various building blocks and linkages, as well as the synthetic strategies, are summarized and discussed in detail.

Apr 12, 2024 · Herein, we report a flexible polyethylene oxide-COF-LZU1 (abbreviated as PEO-COF) electrolyte membrane with a high lithium ion transference number and satisfactory mechanical strength, allowing for dendrite-free and long-time cycling for LMBs.

May 29, 2018 · Covalent organic frameworks (COFs) with ordered one-dimensional channels could offer a predesigned pathway for ion motion. However, implanting salts into bare channels of COFs gives rise to a limited ion conductivity. Here, we report the first example of polyelectrolyte COFs by integrating flexible oligo (ethylene oxide) chains onto the pore walls.

We predesigned and constructed different molecular interfaces by fabricating ordered or amorphous π skeletons, installing ligating or non-ligating walls and engineering hydrophobic or hydrophilic pores.

Aug 5, 2024 · We report superionic conduction in a Mg2+-containing covalent organic framework (COF) at intermediate temperature in the absence of guest vapors. A COF containing Mg2+ carriers and polyethylene oxide (PEO) chains in its channels (TPB …

May 8, 2024 · Overall, the optimal 10 % COF composed PEO composite electrolyte exhibits an outstanding ionic conductivity and mechanical flexibility with stable Coulombic efficiency and high-capacity retention.

Nov 1, 2022 · The fabricated lithium ion batteries (Li/COF-PEO-9-Li) showed a stable working voltage of 5.2 V verse Li/Li + at 100 ºC. The capacity achieved 120 mAh g −1 and became stable over 10 cycles.