1. National & Local Engineering Laboratory for Motive Power, and Key Materials; College of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang 453007 China
2. Henan Battery Research Institute; Xinxiang 453007 China
3. Henan Huarui Advanced Materials Technology Co. Ltd.; Xinxiang 453007 China
4. Department of Electronic Information Materials, School of Materials Science and Engineering; Shanghai University; Shanghai 200444 China