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1、Development and Evaluation of Power Li-ion Battery and Key Materials 动力锂离子电池及其关键材料开发与评估,Xingjiang LIU, Chengwei XIAO and Jiqiang WANG,National Key Lab. of Power Sources, China Tianjin Institute of Power Sources, Tianjin 300381, China,The 4th International Forum on Power LIB for EV , Oct. 17, 2009, B
2、eijing,Outline,Introduction Development target and status of Power LIB Key materials for power LIB Technical issues and solution Summary,Introduction,National program for next generation power battery,USA: 2.4B$, 48 Projects, for Next-Generation of Batteries and Electric Vehicles Japan: 0.2B$, 42 su
3、bjects including Batteries for Stationary Maximum power; Capacity-10Ah for HEV, 50Ah for EV; Structure-Heat dispersion and conductibility; The others: Additive, separator, safety vent,Technical issues and solution,2. Power and Life High power: 1) Increasing the electron and ion diffusion speed ; 2)
4、Smaller particle size; 3) Thickness and porosity of electrode; 4) Electrolyte Longer life: 1) Cycle life; 2) Calendar life; Interface stability (SEI),Technical issues and solution,3. Specific Energy New material development Cathode: Layerd Mn based material; LVP Anode: Si based material,New Challeng
5、es,National program for next generation electrochemical power source,Period : year 2009 to year 2013,Battery : 300Wh/kg, based on lithium-ion system,High-Power Electrochemical Power Source: with specific power of 5000W/kg and specific energy of 20Wh/kg, based lithium-ion cell or electrochemical capa
6、citor,.,Organized by Tianjin Institute of Power Sources,Fig. X-ray diffraction patterns of Li1.2+xNi1/4Mn3/40.8-xO2 powders (a) x = 0, (b) x = 0.0381, (c) x = 0.0727) and Lattice constants a, c, and V as a function of Li content.,Fig. 3. Scanning electron photographs of Li1.2+xNi1/4Mn3/40.8-xO2.,Lay
7、ered Li1.2+xNi1/4Mn3/40.8-xO2 material,Cathode material,Fig. The first charge/discharge profiles Anode: HC, NGC, LTO; Cell LMO or LFP or NCM / HC or NGC for PHEV, EV NCM or NCA / LTO for HEV Next Generation Mn rich layered material, LVP, Si based material,Thank you for your kind attentions! 欢迎参加 第28
8、届全国化学与物理电源学术年会 28th Annual Meeting on Power Sources 2009年11月14日-16日 广州华泰宾馆,The 4th International Forum on Power LIB for EV , Oct. 17, 2009, Beijing,Advances of LiFePO4,Improving Conductivity of LiFePO4,SONY (2001) Synthesis of small particle LiFePO4,Armand et al (2001) Carbon coating of LiFePO4 particles,Y-M. Chiang et al (2002) Doped LiFePO4,L. Nazar et al (2001 & ECS 2003) C-matrix composite influence on LiFePO4,LFP Mass Production Line,
