期刊
APPLIED MATERIALS TODAY
卷 29, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apmt.2022.101602
关键词
Flexible fabric framework; Mixed ion-electronic conductor; Li0.33La0.56TiO3; Li deposition behavior; Li-metal anodes
资金
- Outstanding Youth Foundation of Guangdong Province (CN) [2018B030306020]
- Key Applied Research Projects of Guangdong Province (CN) [2018KZDXM071]
- Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University [CUSF-DH-D-2020010]
This study successfully addresses the issues of Li-dendrite growth and volume fluctuations in Li-metal batteries by constructing a flexible mixed ion-electron conducting fabric scaffold, leading to the design of a stable and dendrite-free Li-metal anode.
Li-metal batteries are promising candidates for next generation rechargeable batteries. However, the hazards caused by the growth of Li-dendrite and enormous volume fluctuations during cycling hinder its practical applications. Here, to solve these problems, a flexible mixed ion-electron conducting fabric scaffold is constructed by uniformly incorporating Li0.33La0.56TiO3 nanoparticles into a 3D carbon nanofiber skeleton. The mixed conductor fabric cannot only homogenize the distribution of electric filed and alleviate volume changes, but also can accelerate the migration and distribution of Li+, thus achieving uniform Li plating/stripping behavior by balanced ion/electron transport. Consequently, the obtained stable and dendrite-free Li-metal anode has a notable cycling stability and rate performance. This work provides a promising direction for the design of practical composite Li-metal anodes.
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