[1] Changsha Univ Sci & Technol, Coll Energy & Power Engn, Changsha 410114, Peoples R China
[2] Changsha Univ Sci & Technol, Coll Phys & Elect Sci, Changsha 410114, Peoples R China
[3] Hunan Changyuan L Co Ltd, Changsha 410221, Peoples R China
[4] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Peoples R China
[5] Changsha Univ Sci & Technol, Inst New Energy & Power Battery, Changsha 410114, Peoples R China