厦门迈凯伦精瑞科仪有限公司 主营:匀胶机,烤胶机,紫外固化机,滴胶机,浸胶机(垂直提拉机)
服务电话
0592-6057091
所在位置:
首页 > 技术文章
技术中心

溶胶-凝胶法电容器储能介质提供了历史新高

Using a hybrid silica sol-gel material and self-assembled monolayers of a common fatty acid, researchers have developed a new capacitor dielectric material that provides an electrical energy storage capacity rivaling certain batteries, with both a high energy density and high power density.

If the material can be scaled up from laboratory samples, devices made from it could surpass traditional electrolytic capacitors for applications in electromagnetic propulsion, electric vehicles and defibrillators. Capacitors often complement batteries in these applications because they can provide large amounts of current quickly.


The new material is composed of a silica sol-gel thin film containing polar groups linked to the silicon atoms and a nanoscale self-assembled monolayer of an octylphosphonic acid, which provides insulating properties. The bilayer structure blocks the injection of electrons into the sol-gel material, providing low leakage current, high breakdown strength and high energy extraction efficiency.

"Sol-gels with organic groups are well known and fatty acids such as phosphonic acids are well known," noted Joseph Perry, a professor in the School of Chemistry and Biochemistry at the Georgia Institute of Technology. "But to the best of our knowledge, this is the first time these two types of materials have been combined into high-density energy storage devices."



Copyright@ 2003-2018  厦门迈凯伦精瑞科仪有限公司版权所有      电话:0592-6057091 传真:0592-6057051 地址:厦门市海沧区沧林三路520号二层 邮编:361026