Electronic MaterialsPublished 25 May 2022Significantly Improved Energy Storage Density of Polypropylene Nanocomposites via Macroscopic and Mesoscopic Structure DesignsMinzun Ji · Daomin Min · Qingzhou Wu · Rui Mi · Wenfeng Liu · Shengtao Li · Shaorui Qin · Shenglong ZhuFrontiers in Electronic Materialsdoi 10.3389/femat.2022.904405