Defect‐Engineered Graphene for High‐Energy‐ and High‐Power‐Density Supercapacitor Devices

作者：Jingyi Zhu, Anthony Childress, Mehmet Karakaya, Sushmita Dandeliya, Anurag Srivastava, Ye Lin, Apparao M. Rao, Ramakrishna Podila · 发表于：Advanced Materials · 年份：2016 · DOI：10.1002/adma.201602028 · 被引用次数：300 · 研究领域：Supercapacitor Materials and Fabrication、Advancements in Battery Materials、Graphene research and applications

Defects are often written off as performance limiters. Contrary to this notion, it is shown that controlling the defect configuration in graphene is critical to overcome a fundamental limitation posed by quantum capacitance and opens new channels for ion diffusion. Defect-engineered graphene flexible pouch capacitors with energy densities of 500% higher than the state-of-the-art supercapacitors are demonstrated.