Imprintable, Bendable, and Shape‐Conformable Polymer Electrolytes for Versatile‐Shaped Lithium‐Ion Batteries

Abstract

A class of imprintable, bendable, and shape-conformable polymer electrolyte with excellent electrochemical performance in a lithium battery system is reported. The material consists of a UV-cured polymer matrix, high-boiling point liquid electrolyte, and Al2 O3 nanoparticles, formulated for use in lithium-ion batteries with 3D-structured electrodes or flexible characteristics. The unique structural design and well-tuned rheological characteristics of the UV-curable electrolyte mixture, in combination with direct UV-assisted nanoimprint lithography, allow the successful fabrication of polymer electrolytes in geometries not accessible with conventional materials.

Microfluidic devices using flexible organic electronic materials

“…Obviously, the fabrication technique is a serial-based process, which is not suitable for mass production. By modifying the active materials in electrodes with alumina particles, a joint research group made it possible to fabricate this stretchable lithium-ion battery in a parallel way (Kil et al, 2013). In addition, a new mechanism for energy-handling devices with microfluidics has been investigated by introducing a concept called reverse electrowetting (Krupenkin & Taylor, 2011).…”

Interfacial stability and electrochemical behavior of Li/LiFePO4 batteries using novel soft and weakly adhesive photo-ionogel electrolytes

“…Lastly, for all the samples used in this work, a drying step was carried out at 60 C under vacuum during 24 h to remove all traces of residual water in the solid electrolyte. Four different polymer electrolytes, hereafter named photoionogels, were prepared: [ETPTA 1 …”

“…Indeed, although the classical liquid electrolytes ensure very satisfactory electrochemical performance, their fluidic character limits choices in cell design, requires separator membranes for cell assembly, and leads to safety concerns because they suffer from possible leakage [1]. This motivates research and development of self-supported solid-state electrolytes that can conform to porous or three-dimensional electrodes and, also, have enough mechanical deformability for reliable use, especially for applications in flexible power sources to meet the rapid development of flexible electronic devices [3,4].…”

Flexible sulfur wires (Flex-SWs)—A new versatile platform for lithium-sulfur batteries

“…This aspect has been progressively realized by the battery community of late, and work has been directed towards addressing the same [2][3][4]. To this end, research has focused on carbon cloth based flexible electrodes [5], all solid-state batteries [6], wearable textile battery [7], functionalized polymer textile battery [8] and polymer fiber based flexible batteries [9].…”