电池2018，Vol.48Issue(1)：25-28,4.DOI:10.19535/j.1001-1579.2018.01.007
低温水热法制备花状球形钛酸锂的性能
Performance of flower-like spherical lithium titanate synthesized by low temperature hydrothermal method
摘要
Abstract
A flower-like spherical lithium titanate (Li4Ti5O12) was synthesized by low temperature hydrothermal method,the formation mechanism of the micro-nano hierarchical structure as well as its electrochemical performance were studied.Hydrogen peroxide(H2O2) was the key factor to control the formation of micro-nano hierarchical structure.When the amount of hydrated lithium hydroxide and isopropyl titanate was 1.269 g and 1.99 g,respectively,H2O2 adding volume was 3 ml,product showed better electrochemical performance:when charged-discharged in 1.0-2.5 V,the initial discharge specific capacity of 5.0 C cycle was 164.8 mAh/g,the capacity retention rate was 80.2％ at the 500th cycle.The 20.0 C specific discharge capacity was still as high as 128.3 mAh/g,when it was performed 5 cycles at 0.1 C,0.5 C,1.0 C,5.0 C,10.0 C,15.0 C and 20.0 C,respectively.关键词
低温水热法/花状球形结构/钛酸锂(Li4Ti5O12)/制备/形成机理/电化学性能Key words
low temperature hydrothermal method/flower-like spherical structure/lithium titanate (Li4Ti5O12)/synthesis/formation mechanism/electrochemical performance分类
信息技术与安全科学引用本文复制引用
王媛,邵丹,李向峰,余景开..低温水热法制备花状球形钛酸锂的性能[J].电池,2018,48(1):25-28,4.基金项目
广东省科技计划项目(2014B010128001),国家质量监督检验检疫总局科技计划项目(2015QK163),广州市质量技术监督局科技项目(2017kj26),广州市质量技术监督局科技项目(2015kj34) （2014B010128001）
