1. College of New Energy; BOHAI University; Jinzhou 121007 PR China
2. Liaoning Province Research Center for Engineering Technology of Super Capacity; BOHAI University; Jinzhou 121013 China
3. College of Chemistry and Chemical Engineering; BOHAI University; Jinzhou 121013 China
4. Analysis and Testing Center of Bohai University; BOHAI University; Jinzhou 121013 China