Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 18, Pages 6001-6006Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201901582
Keywords
hierarchical structure; iodine cathode; lithium metal battery; near-single ion conduction; polymer electrolyte
Categories
Funding
- Australian Renewable Energy Agency project [ARENA 2014/RND106]
- Rail Manufactory CRC projects (RMCRC) [R1.1.1, R1.1.2]
- Australian Research Council (ARC) Discovery Project [DP160104340, DP170100436]
Ask authors/readers for more resources
The low Coulombic efficiency and serious safety issues resulting from uncontrollable dendrite growth have severely impeded the practical applications of lithium (Li) metal anodes. Herein we report a stable quasi-solid-state Li metal battery by employing a hierarchical multifunctional polymer electrolyte (HMPE). This hybrid electrolyte was fabricated via in situ copolymerizing lithium 1-[3-(methacryloyloxy)propylsulfonyl]-1-(trifluoromethanesulfonyl)imide (LiMTFSI) and pentaerythritol tetraacrylate (PETEA) monomers in traditional liquid electrolyte, which is absorbed in a poly(3,3-dimethylacrylic acid lithium) (PDAALi)-coated glass fiber membrane. The well-designed HMPE simultaneously exhibits high ionic conductivity (2.24x10(-3)Scm(-1) at 25 degrees C), near-single ion conducting behavior (Li ion transference number of 0.75), good mechanical strength and remarkable suppression for Li dendrite growth. More intriguingly, the cation permselective HMPE efficiently prevents the migration of negatively charged iodine (I) species, which provides the as-developed Li-I batteries with high capacity and long cycling stability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available