Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 46, Pages 14382-14386Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201607951
Keywords
carbon nanotubes; flexible electronics; lithium-ion batteries; nanotechnology; self-healing polymers
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Funding
- NSFC [21225417, 51573027, 51403038]
- STCSM [15XD1500400, 15JC1490200]
- Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee
- Samsung Advanced Institute of Technology (SAIT)'s Global Research Outreach (GRO) Program [IO140919-02248-01]
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Flexible lithium-ion batteries are critical for the next-generation electronics. However, during the practical application, they may break under deformations such as twisting and cutting, causing their failure to work or even serious safety problems. A new family of all-solid-state and flexible aqueous lithium ion batteries that can self-heal after breaking has been created by designing aligned carbon nanotube sheets loaded with LiMn2O4 and LiTi2(PO4)(3) nanoparticles on a self-healing polymer substrate as electrodes, and a new kind of lithium sulfate/sodium carboxymethylcellulose serves as both gel electrolyte and separator. The specific capacity, rate capability, and cycling performance can be well maintained after repeated cutting and self-healing. These self-healing batteries are demonstrated to be promising for wearable devices.
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