期刊
JOURNAL OF POWER SOURCES
卷 196, 期 4, 页码 2246-2250出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.10.005
关键词
Lithium primary battery; Fluorinated graphite; Carbon nanotubes; Conductive additive; Discharge rate
资金
- National Basic Research Program of China [2010CB934700]
- National Natural Science Foundation of China [50873074, 51073115, 51011140072]
- Natural Science Foundation of Tianjin City [10JCZDJC22400]
The discharge performance of Li/CFx (x=1) battery is improved by using multi-walled carbon nanotubes (MWCNTs) as an alternative conductive additive Compared with the battery using acetylene black as conductive additive at the same amount the Li/CFx battery using MWCNTs as conductive additive has higher specific capacity and energy density as well as smoother voltage plateau especially at higher discharge rate The specific capacity at discharge rate of 1 C is improved by nearly 26% when MWCNTs are employed as conductive additive Meanwhile it is also found that the discharge performance is able to be tuned by the amount of MWCNTs and the battery containing more MWCNTs is favorable to be discharged at higher rates The specific capacity of Li/CFx battery with 11 09 wt % MWCNTs is approximately 712 mAh g(-1) at the discharge rate of 1 C It is proposed that the formed three-dimensional networks of MWCNTs in cathode which enlarges the contact area of interphase and facilitates electrons delivery accelerates the rates of lithium ion diffusion into the fluorinated layers and electrons transport in cathode at the same time which Improves the discharge performance of Li/CFx battery subsequently especially at higher rates (C) 2010 Elsevier BV 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