Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

3D Printed High‐Performance Lithium Metal Microbatteries Enabled by Nanocellulose

3D Printed High‐Performance Lithium Metal Microbatteries Enabled by Nanocellulose Batteries constructed via 3D printing techniques have inherent advantages including opportunities for miniaturization, autonomous shaping, and controllable structural prototyping. However, 3D‐printed lithium metal batteries (LMBs) have not yet been reported due to the difficulties of printing lithium (Li) metal. Here, for the first time, high‐performance LMBs are fabricated through a 3D printing technique using cellulose nanofiber (CNF), which is one of the most earth‐abundant biopolymers. The unique shear thinning properties of CNF gel enables the printing of a LiFePO4 electrode and stable scaffold for Li. The printability of the CNF gel is also investigated theoretically. Moreover, the porous structure of the CNF scaffold also helps to improve ion accessibility and decreases the local current density of Li anode. Thus, dendrite formation due to uneven Li plating/stripping is suppressed. A multiscale computational approach integrating first‐principle density function theory and a phase‐field model is performed and reveals that the porous structures have more uniform Li deposition. Consequently, a full cell built with a 3D‐printed Li anode and a LiFePO4 cathode exhibits a high capacity of 80 mA h g−1 at a charge/discharge rate of 10 C with capacity retention of 85% even after 3000 cycles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Materials Wiley

3D Printed High‐Performance Lithium Metal Microbatteries Enabled by Nanocellulose

Download PDF
10 pages

Loading next page...
 
/lp/wiley/3d-printed-high-performance-lithium-metal-microbatteries-enabled-by-SW6htYWSkz

References (42)

Publisher
Wiley
Copyright
"© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim"
ISSN
0935-9648
eISSN
1521-4095
DOI
10.1002/adma.201807313
Publisher site
See Article on Publisher Site

Abstract

Batteries constructed via 3D printing techniques have inherent advantages including opportunities for miniaturization, autonomous shaping, and controllable structural prototyping. However, 3D‐printed lithium metal batteries (LMBs) have not yet been reported due to the difficulties of printing lithium (Li) metal. Here, for the first time, high‐performance LMBs are fabricated through a 3D printing technique using cellulose nanofiber (CNF), which is one of the most earth‐abundant biopolymers. The unique shear thinning properties of CNF gel enables the printing of a LiFePO4 electrode and stable scaffold for Li. The printability of the CNF gel is also investigated theoretically. Moreover, the porous structure of the CNF scaffold also helps to improve ion accessibility and decreases the local current density of Li anode. Thus, dendrite formation due to uneven Li plating/stripping is suppressed. A multiscale computational approach integrating first‐principle density function theory and a phase‐field model is performed and reveals that the porous structures have more uniform Li deposition. Consequently, a full cell built with a 3D‐printed Li anode and a LiFePO4 cathode exhibits a high capacity of 80 mA h g−1 at a charge/discharge rate of 10 C with capacity retention of 85% even after 3000 cycles.

Journal

Advanced Materials – Wiley

Published: Apr 1, 2019

Keywords: ; ; ; ; ;

There are no references for this article.