节点文献

LiCoO₂过充性能的研究

Study on over-charging of LiCoO₂

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 WANG Jing1,GU Xue-jing2,ZHU Jing3,LIU Qing-guo4(Hebei Polytechnic University 1.School of Materials,2.School of Information,3.School of Chemical Engineering and Biotechnology,Tangshan Hebei 063009,China ;4.Laboratory for Solid State Electrolyte,University of Science and Technology of Beijing,Beijing 100083,China)

【机构】河北理工大学材料学院；河北理工大学信息学院；河北理工大学化学与生物技术学院；北京科技大学固体电解质研究室河北唐山063009；河北唐山063009；北京100083；

【摘要】为了使锂离子蓄电池大型化之后依然保持良好的过充性能,研究了正极材料LiCoO2的不同物理性质对过充性能的影响。结果表明,以5C电流对电池进行充电,充至10V的过程中,造成电池发生爆炸的过充电量只与正极材料的质量大小有关而与负极材料的质量大小无关;LiOH为锂源、合成产物平均粒径为10～11mm、pH≤7的正极材料LiCoO2,其过充性能优良。由此可知,生产LiCoO2材料时,通过控制正极材料LiCoO2的平均粒径和pH值可以改善锂离子蓄电池的过充性能。更多还原

【Abstract】 With the aim of developing a large-scale lithium ion batteries with safety,we study over-charging of AA size batteries that were fabricated using the physical performance of various LiCoO2 as cathode materials.The results show that the coulomb quantity of 5 C overcharging to 10 V is dependent on the amount of cathode material,other than anode amount.The cathode material synthesized with LiOH,10-11 mm of the average particle size and pH≤7 presented better performances.更多还原