当前位置: X-MOL 学术Langmuir › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Exfoliated Graphite Nanosheets Coating on Nano-grained SnO2/Li4Ti5O12 as a High-Performance Anode Material for Lithium-Ion Batteries
Langmuir ( IF 3.9 ) Pub Date : 2020-11-24 , DOI: 10.1021/acs.langmuir.0c02524
Yefeng Feng 1 , Kaidan Wu 1 , Xiaoqian Deng 1 , Jin Ke 1 , BingWen Yang 1 , Huafeng Dong 1 , Deping Xiong 1 , Miao He 1
Affiliation  

The SnO2/Li4Ti5O12/C compound was gained via hydrothermal, sintering, and ball milling methods. Nano-grained SnO2/Li4Ti5O12 are homogeneously wrapped in a sheet-like graphite. Li4Ti5O12 possesses cyclic stability and superior rate capacity. Meanwhile, the SnO2/Li4Ti5O12 hybrid can supply abundant active sites for absorption of Li+, mitigate chemical stress in cycling, and prevent the ultrathin graphite nanosheets from stacking. Besides, the sheet-like graphite could reduce volume variation in cycling and reduce transmission distance for the electron or Li+. Therefore, an outstanding electrochemical property of the SnO2/Li4Ti5O12/C composite can be obtained.

中文翻译:

纳米晶粒SnO 2 / Li 4 Ti 5 O 12上包覆的剥落石墨纳米片作为锂离子电池的高性能负极材料

通过水热法,烧结法和球磨法获得SnO 2 / Li 4 Ti 5 O 12 / C化合物。将纳米晶粒的SnO 2 / Li 4 Ti 5 O 12均匀地包裹在片状石墨中。Li 4 Ti 5 O 12具有循环稳定性和优良的倍率容量。同时,SnO 2 / Li 4 Ti 5 O 12杂化物可以提供丰富的活性位来吸收Li +,减轻循环中的化学应力,并防止超薄石墨纳米片堆叠。此外,片状石墨可以减少循环中的体积变化并减少电子或Li +的传输距离。因此,可以获得SnO 2 / Li 4 Ti 5 O 12 / C复合材料的优异的电化学性能。
更新日期:2020-12-08
down
wechat
bug