中南大学学报（自然科学版）2012，Vol.43Issue(5)：1634-1637,4.
以竹纤维为模板制备微米管状Li4Ti5O12负极材料
Synthesis of microtubes Li4Ti5O12 anode material by bamboo fiber template
摘要
Abstract
Microtube Li4Ti5O12 anode materials for lithium-ion batteries were synthesized using bamboo fiber as template, and Ti(OC4H9)4 and Li(Ac)·2H2O as raw materials. The structure, morphology and electrochemical properties of Li4Ti5O12 were characterized by X-ray diffraction (XRD), scanning electronic morphology (SEM), Brunauer-Emmett-Teller method (BET), galvanostatic charge-discharge tests and electrochemical impedance spectroscopy (EIS) measurements. The results show that the Li4Ti5O12 microtubes are composed of spinel Li4Ti5O12 nano-particles, which has a high special surface area resulting in improved electrochemistry performances. The electrochemical test results show that the spinel Li4Ti5O12 microtube delivers the initial discharge capacity of 178 mAh/g at 0.1 C current rate in the voltage rang of 0.5-3.0 V, and its discharge capacity retains 162 mAh/g after 100 cycles. The spinel Li4Ti5O12 material has an excellent rate performance.关键词
锂离子电池/负极材料/模板法/微米管状Li4Ti5O12/竹纤维Key words
lithium-ion battery/ anode material/ template method/ Li4Ti5O12 microtubes/ bamboo fiber分类
信息技术与安全科学引用本文复制引用
邵丹,何嘉荣,刘惠平,卢子华,董先明,禹筱元..以竹纤维为模板制备微米管状Li4Ti5O12负极材料[J].中南大学学报（自然科学版）,2012,43(5):1634-1637,4.基金项目
广东省自然科学基金资助项目(9151064201000039) （9151064201000039）
广东省科技计划项目(2009B010900025) （2009B010900025）
华南农业大学"211工程"三期重点建设项目(2009B010100001) （2009B010100001）
华南农业大学新学科扶持基金资助项目(K09140) （K09140）
中国科学院可再生能源与天然气水合物重点实验室开放基金资助项目(Y007K2) （Y007K2）
