Fibrous all-in-one monolith electrodes with a biological gluing layer and a membrane shell for weavable lithium-ion batteries

Title
Fibrous all-in-one monolith electrodes with a biological gluing layer and a membrane shell for weavable lithium-ion batteries
Authors
이현정임정아김형준김순우김수진하성훈이채원신규항박혜원임예인이윤정
Keywords
textile battery; biological glue; in-line coating; lithium ion battery; high capacity
Issue Date
2018-04
Publisher
Journal of materials chemistry. A, Materials for energy and sustainability
Citation
VOL 6, NO 15-6641
Abstract
The increasing demand for wearable devices ultimately requires the development of energy storage devices with wide structural versatility, lightweight and high energy density. Although various flexible batteries have been developed based on two-dimensional and one-dimensional platforms, truly weavable batteries with high capacity and elongation capability have not been materialized yet. Herein, we report weavable lithium ion batteries (LIBs) with high capacity by developing fibrous all-in-one electrode threads based on nanosized hybrid active layers with a biological gluing inner layer and a membrane shell. The thread consists of four distinct concentric structures, a carbon fiber core as a current collector, a conductive biological gluing layer, nanohybrid active materials, and a porous membrane layer. Nanosized LiFePO4/C-rGO and Li4Ti5O12/rGO are used for cathode and anode threads, respectively. This unique all-in-one structure combined with an inline coating approach ensures flexibility and mechanical stability with a high linear capacity of 1.6 mA h cm1. These features all together allow for various assembly schemes such as twisting and hierarchical weaving, enabling fabric LIBs to show 50% elongation via encoded structural deformation.
URI
http://pubs.kist.re.kr/handle/201004/67643
ISSN
2050-7488
Appears in Collections:
KIST Publication > Article
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