1. School of Chemical and Environmental Engineering; North University of China; Taiyuan P.R. China
2. Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province; Key Laboratory of Polyoxometalate Science of Ministry of Education, and National & Local United Engineering Laboratory for Power Batteries; Department of Chemistry; Northeast Normal University; Changchun Jilin Province P.R. China
3. Enervault Corporation; Sunnyvale CA USA