Flexible electrode based on polyvinyl alcohol and preparation method of flexible electrode

• Main Authors: MIAO ZHONGXI, CHEN GUORONG, DAI LIZONG, LUO WEI'ANG, WU ZHANGFENG, XU YITING, ZENG BIRONG, YUAN CONGHUI, GUO CHUANLUAN
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

The invention discloses a flexible electrode based on polyvinyl alcohol and a preparation method of the flexible electrode. The flexible electrode is obtained by pouring and drying slurry, soaking in an acid solution for providing protons, washing with water and cutting, wherein the slurry is composed of polyvinyl alcohol, a conductive carbon material, an active substance and water. The flexible electrode disclosed by the invention is soft, curlable, foldable, elastic, capable of tolerating a certain degree of friction, has the performance of a supercapacitor, can charge and discharge charges, can increase the proportion of active substances according to needs, has large capacitance, can sense the change of the charges, and is very suitable for wearable equipment based on the flexible electrode. 本发明公开了一种基于聚乙烯醇的柔性电极及其制备方法，由浆料浇筑并干燥后，再于提供质子的酸溶液的浸泡、水洗涤和裁切后，即得；其中，该浆料由聚乙烯醇、导电碳材料、活性物质和水组成。本发明的柔性电极柔软可卷曲、折叠、有弹性，可耐受一定程度的摩擦，并具有超级电容器的性能，能进行电荷的充放电，可根据需要，增加活性物质比例，有不小的电容量，可以感应出电荷的变化，非常适合基于柔性电极的可穿戴设备。