Cross-Linked Chains of Metal–Organic Framework Afford Continuous Ion Transport in Solid Batteries

Abstract

Metal–organic frameworks (MOFs) have attracted intensive study as solid electrolytes (SEs) in recent years. However, MOF particles work separately in SEs and numerous interfaces hinder a high-efficiency ion transport, which lowers the performance of solid-state batteries (SSBs). Herein, continuous ion-conductive paths were constructed by cross-linked MOF chains. Chains of a newly developed MOF (Zr-BPDC-2SO3H) were grown on bacterial cellulose (BC) nanofibers to provide a continuous ion transport network. The cross-linked MOF chains exhibit a high ionic conductivity of 7.88 × 10–4 S cm–1 at 25 °C, single-ion transport ability (t Li +=0.88), a wide electrochemical window up to 5.10 V, excellent interface compatibility, and the capability for suppressing lithium dendrites. Most importantly, the SSB fabricated with the cross-linked MOF chains shows more than 100% improved specific capacity in comparison to an SSB without this design and stable cycling performance at 3 C. This work provides a splendid strategy for developing high-performance SEs with porous ion conductors.

Covalent Organic Framework for Rechargeable Batteries: Mechanisms and Properties of Ionic Conduction

“…[ 6,12 ] Mechanism exploration and novel material design become two important strategies to tackle the sluggish ion‐conduction kinetics. [ 13–17 ]…”

Sulfur‐Doped Hydrogen‐Bonded Organic Framework for Improved Oxygen Evolution Reaction

“…Porous organic frameworks including metal‐organic frameworks and covalent organic frameworks have shown considerable potential for catalysis, gas separation and sensing, by virtue of their powerful pore chemistry and tunable active sites [10–23] . Besides, hydrogen‐bonded organic frameworks (HOFs) as a class of newly emerging materials, are constructed by supramolecular interactions such as hydrogen bonds, and gain increased attention in various fields [24–28] .…”

“…Porous organic frameworks including metal-organic frameworks and covalent organic frameworks have shown considerable potential for catalysis, gas separation and sensing, by virtue of their powerful pore chemistry and tunable active sites. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] Besides, hydrogen-bonded organic frameworks (HOFs) as a class of newly emerging materials, are constructed by supramolecular interactions such as hydrogen bonds, and gain increased attention in various fields. [24][25][26][27][28] However, to our knowledge, there have been few researches on using HOFs as OER electrocatalyst, mostly restricted by their lack of enough active sites.…”

Probing the Water Vapor Adsorption Properties of MIL‐101 Doped with Manganese

“…Because of its high specific surface area and porosity, MOFs have been used in fields like gas adsorption, [11,12] catalysis, [13,14,15] solid electrolyte or interlayer in batteries. [16,17,18] The high specific surface area and porosity grant MOFs material the potential to be used as the carrier material of chemical heat pump solid adsorbent. Among MOF materials, the MIL series have attracted much attention due to its high specific surface area and porosity.…”

“…MOF material is a kind of porous material attracting much attention in recent years. Because of its high specific surface area and porosity, MOFs have been used in fields like gas adsorption, [11,12] catalysis, [13,14,15] solid electrolyte or interlayer in batteries [16,17,18] . The high specific surface area and porosity grant MOFs material the potential to be used as the carrier material of chemical heat pump solid adsorbent.…”