1Studying on Discharge Life of Lithium ion Battery for Electric Bicycle at Low Temperature -20 ℃HOU Wei-guo, ZHENG Kun, CAI Guo-hui, DONG Tian, LI YangResearch and technology227-2302Multi-hollow CoFe2O4 Microspheres as High-performance Anode for Lithium-ion BatteryTANG Jia-yi, NIU Zheng, CHEN Xiang-zhen, FANG Zhen-hua, WANG Hai-bo, SUN Ying-hui, JIANG LinResearch and technology231-2353High Concentration LiFSI Electrolyte for Li-S BatteriesGAN Chao-lun, QIN Hu, YUAN Jie, WU QinResearch and technology236-2394Research on Status of Fire Extinguishing Efficiency Based on Lithium BatteryZHOU Hui-huiResearch and technology240-2435Cycle Life Decay Accelerated Testing of Li(NiCoMn)O2 Lithium ion BatteryDENG Shuang, WANG Hong-wei, GUO Shao-bo, FANG Xu-junResearch and technology244-2476Design and Analysis of a Low-speed EV Battery BoxWANG Jun, YUE Yue-qin, SHEN Ying-jie, YANG Yue-hua, LU Bin-binResearch and technology248-2527A Simulation of Fuel Cell Vehicle Hydrogen System Based on AMESimLIU Dong-an, CHEN Jun-chao, CAI Ji-minResearch and technology253-2588Investigation Progress of Test System for Fuel Cells at Home and AbroadWANG Pan-pan, LING Ze, ZHANG Kai-qing, ZOU Zhen-yaoReview259-2629Recent Materials and Research Progress on Lithium ion Battery SeparatorZHOU Xiao-ji, LIU Ting-tingReview263-26810Research Progress for Graphene Based Anode Materials of Lithium ion BatteryWANGCHEN Hao-yue, CHEN Gan-lin, WEI Le, PAN Yu-mo, SUN Ying-hui, ZHAO LiangReview269-27511Analysis of New GB Criteria of Lithium-ion Batteries for Light VehiclesWANG Cai-juan, QIN Jian-feng, SONG Yang, LV Yuan-yuanStandard And Test276-279