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All‐Solid‐State Lithium–Organic Batteries Comprising Single‐Ion Polymer Nanoparticle Electrolytes

Authors :
Haneol Kang
Moon Jeong Park
Rui-Yang Wang
Kyoungwook Kim
Boram Kim
Source :
ChemSusChem. 13:2271-2279
Publication Year :
2020
Publisher :
Wiley, 2020.

Abstract

Advances in lithium battery technologies necessitate improved energy densities, long cycle lives, fast charging, safe operation, and environmentally friendly components. This study concerns lithium-organic batteries comprising bioinspired poly(4-vinyl catechol) (P4VC) cathode materials and single-ion conducting polymer nanoparticle electrolytes. The controlled synthesis of P4VC results in a two-step redox reaction with voltage plateaus at around 3.1 and 3.5 V, as well as a high initial specific capacity of 352 mAh g-1 . The use of single-ion nanoparticle electrolytes enables high electrochemical stabilities up to 5.5 V, a high lithium transference number of 0.99, high ionic conductivities, ranging from 0.2×10-3 to 10-3 S cm-1 , and stable storage moduli of >10 MPa at 25-90 °C. Lithium cells can deliver 165 mAh g-1 at 39.7 mA g-1 for 100 cycles and stable specific capacities of >100 mAh g-1 at a high current density of 794 mA g-1 for 500 cycles. As the first successful demonstration of solid-state single-ion polymer electrolytes in environmentally benign and cost-effective lithium-organic batteries, this work establishes a future research avenue for advancing lithium battery technologies.

Details

ISSN :
1864564X and 18645631
Volume :
13
Database :
OpenAIRE
Journal :
ChemSusChem
Accession number :
edsair.doi.dedup.....92e174c7ec2f1b80573deb128ab63e05
Full Text :
https://doi.org/10.1002/cssc.202000117