Polyacrylonitrile-polyvinylidene fluoride as high-performance composite binder for layered Li-rich oxides
Polyacrylonitrile-polyvinylidene fluoride as high-performance composite binder for layered Li-rich oxides
复制标题
聚丙烯腈-聚偏二氟乙烯作为层状富锂氧化物的高性能复合粘合剂
DOI:
10.1016/j.jpowsour.2017.05.063
复制
发表时间:
2017-08
影响因子:
9.2
通讯作者:
Bao Liying
中科院分区:
文献类型:
--
作者:
Wu Feng;Li Weikang;Chen Lai;Lu Yun;Su Yuefeng;Bao Wurigumula;Wang Jing;Chen Shi;Bao Liying
Layered lithium-rich Oxides (LLROs) suffer from serious capacity fading during the cycling especially when the size is in sub-micron or nanoscale. Here we report the polyacrylonitrile (PAN) as a binder to maintain the capacity of LLROs sized ∼200 nm, the combined PAN with polyvinylidene fluoride (PVDF) achieve excellent cycle and rate performance as the composite binder taking advantages from both PAN and PVDF. The capacity retention of PAN-PVDF electrode after 40 cycles is 89.6%, comparing to the 77.5% of PVDF electrode and 85.1% of PAN electrode. The SEM images pronouncedly illustrates that PAN-PVDF as composite binder holds the active material on the laminates firmly, resulting few cracks and voids. The electrochemical impedance spectra indicate that averting those voids and cracks lead to lower resistance. The composite binder has played a significant role in improving the cycling and rate performance of LLROs.
登录
查看更多内容
影响因子:
17.6
作者:
Muhammad, Shoaib;Kim, Hyunchul;Yoon, Won-Sub
通讯作者:
Yoon, Won-Sub
DOI:
10.1039/c5cp00853k
发表时间:
2015-04
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
Sihui Wang;Yixiao Li;Jue Wu;Bizhu Zheng;M. J. McDonald;Yong Yang
通讯作者:
Sihui Wang;Yixiao Li;Jue Wu;Bizhu Zheng;M. J. McDonald;Yong Yang
影响因子:
41.2
作者:
Sathiya, M.;Abakumov, A. M.;Tarascon, J-M.
通讯作者:
Tarascon, J-M.
影响因子:
29.4
作者:
Chen, Lai;Su, Yuefeng;Wu, Feng
通讯作者:
Wu, Feng
影响因子:
9.2
作者:
Lee, Sangmin;Kim, Eun-Young;Oh, Eun-Suok
通讯作者:
Oh, Eun-Suok