Weavable high-capacity electrodes

Improvement of system capacitance via weavable superelastic biscrolled yarn supercapacitors

Yarn-based supercapacitors having improved performance are needed for existing and emerging wearable applications. Here, we report weavable carbon nanotube yarn supercapacitors having high performance because of high loadings of rapidly accessible charge storage particles (above 90 wt% MnO2). The yarn electrodes are made by a biscrolling process that traps host MnO2 nanoparticles within the gal...

Transforming Commercial Textiles and Threads into Sewable and Weavable Electric Heaters.

We describe a process to transform commercial textiles and threads into electric heaters that can be cut/sewn or woven to fashion lightweight fabric heaters for local climate control and personal thermal management. Off-the-shelf fabrics are coated with a 1.5 μm thick film of a conducting polymer, poly(3,4-ethylenedioxythiophene), using an improved reactive vapor deposition method. Changes in t...

Ultrafast charge and discharge biscrolled yarn supercapacitors for textiles and microdevices.

Flexible, wearable, implantable and easily reconfigurable supercapacitors delivering high energy and power densities are needed for electronic devices. Here we demonstrate weavable, sewable, knottable and braidable yarns that function as high performance electrodes of redox supercapacitors. A novel technology, gradient biscrolling, provides fast-ion-transport yarn in which hundreds of layers of...

The Long Staple Weavable Singles Yarn

Square Root Palindromes

Square Root Palindromes ................................... 1 Sigma Quest .......................................................... 6 Decimal Fractions ................................................ 9 Designing Weavable Color Patterns ............... 12 Polygraphic Substitution .................................. 17 Programming Tips ............................................. 20 What’s Comi...