期刊
JOURNAL OF POWER SOURCES
卷 303, 期 -, 页码 194-202出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.10.104
关键词
Nanostructures; Binderless electrode; Lithium-ion microbattery; Self-organized titania nanotubes; Lithium nickel manganese oxide nanowires
资金
- MEC [MAT2011-22753]
- Junta de Andalucia [FQM-7206]
- Ramon y Cajal program [RYC-2010-05596]
- MESC
- National Natural Science Foundation of China [21233004]
Novel battery architectures with improved safety, power and energy density are currently being demanded for battery miniaturization. We present a rechargeable full cell fabricated with self-organized titania nanotubes (nt-TiO2) and self-organized LiNi0.5Mn1.5O4 nanowires (LNMO). The effects of the Li3PO4-coated nt-TiO2 on the electrochemical performance of the full cell are studied. A complete (de) intercalation of lithium into both electrodes is observed, and cells avoid the use of metallic lithium while displaying improved safety and restrained lowering of the overall cell voltage. The surface modified electrodes exhibit better rate capability and cycling performance compared to non-treated electrodes. The nt-TiO2, Li3PO4/EC:DEC LiPF6/LiNi0.5Mn1.5O4 cell could be cycled at 5C rate, with associated capacity of 125 mA h g(-1), energy density of 325 W h kg(-1) and power density of 637 mu W cm(-2) gm(-1). These results give evidence to the compatibility between both nanostructured electrodes particularly when lithium phosphate exerts a stabilization effect at the electrode/electrolyte interface, facilitating improved mass transfer and Li-diffusion at high rates. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据