2022-03-22 ノースカロライナ州立大学（NCState）
・この発見は、着用者の動きからエネルギーを取り込み、センサーやウェアラブル電子機器に電力を供給する「スマートテキスタイル」の開発を前進させることにつながる可能性がある。
・研究者らはnpj Flexible Electronics誌に、スーパーキャパシタ（エネルギーを貯蔵する電気機器）として機能する糸を絶縁糸で包むことで、糸のショートを防ぐことができたと報告しています。
＜関連情報＞
- https://news.ncsu.edu/2022/03/design-tweak-helps-prevent-malfunction-in-yarns-designed-to-store-energy/
- https://www.nature.com/articles/s41528-022-00150-2
糸状スーパーキャパシタにおける長さ方向の短絡回避のためのセパレータ糸 Separator threads in yarn-shaped supercapacitors to avoid short-circuiting upon lengt
Nanfei He,Junhua Song,Jinyun Liao,Feng Zhao &Wei Gao
Published: 18 March 2022
図1：概略図、写真、光学顕微鏡画像を使用したTYCの描写。
Abstract：
Yarn-shaped supercapacitors (YSCs) are becoming promising energy-supply units with decent mechanical flexibility to be integrated into e-textiles in various shapes and locations. However, a robust YSC configuration that can provide long-term and reliable power output, especially after rigorous weaving and knitting processes, as well as all kinds of end uses, is yet to be established. Most YSCs today still suffer from short-circuiting upon length, primarily due to the structure failure of gel electrolyte that also works as the separator. Herein, we report the incorporation of separator threads in a twisted YSC, to withstand repetitive mechanical deformations. Separator threads are wrapped outside of yarn electrodes as a scaffold to accommodate gel electrolyte, while chemistry and wrapping density of these threads are investigated. With processing parameters optimized, we present an YSC configuration that can bear mechanical deformations along almost all directions, leading to reliable power units in woven or knit fabrics.
