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Screen printed flexible water activated battery on woven cotton textile as a power supply for e-textile applications

Screen printed flexible water activated battery on woven cotton textile as a power supply for e-textile applications
Screen printed flexible water activated battery on woven cotton textile as a power supply for e-textile applications
Electronic textiles (e-textiles) development has been attracting significant research interest over the past two decades, especially in the field of wearable electronics. Fabric based flexible batteries are an attractive solution to the challenge of powering e-textiles. This work presents a simple and scalable textile primary battery, produced via a low-cost screen-printing manufacturing process. The device architecture is purposefully simple, based on a standard aluminum-silver redox reaction and a salt bridge. The battery as manufactured is inactive and requires the addition of water to be activated, and it can therefore be classified as a reserve battery. The battery is suitable for long-term storage, having negligible self-discharge rates. Initial batteries achieved a total area capacity of 101.6 μ Ah/cm 2 and an energy density of 2.178 mWh/cm 3 above 0.8 V. Further refinements of the battery include the inclusion of a novel membrane separator within the woven cotton textile layer and blending the metal salts with polyvinyl alcohol to reduce the number of textile layers. This optimization resulted in an improved performance of 166.8 μ Ah/cm 2 in area capacity and 3.686 mWh/cm 3 in energy density above 0.8 V. This work has demonstrated the feasibility of an aluminum-silver reserve textile battery and demonstrates a novel method for printing a phase inversion membrane separator into the textile. Following an encapsulation process, this flexible textile battery can be easily integrated into a standard woven textile, providing a robust, lightweight and flexible power supply.
2169-3536
206958 - 206965
Li, Yi
5c22f4d6-a339-4b3d-a43e-7c55eaf304a7
Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Hillier, Nicholas David George
6bde7893-a2db-4edd-9e12-a8ab17aa3702
Arumugam, Sasikumar
bda5c9f3-c979-4129-92a3-eaa50d778f4c
Beeby, Stephen
ba565001-2812-4300-89f1-fe5a437ecb0d
Li, Yi
5c22f4d6-a339-4b3d-a43e-7c55eaf304a7
Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Hillier, Nicholas David George
6bde7893-a2db-4edd-9e12-a8ab17aa3702
Arumugam, Sasikumar
bda5c9f3-c979-4129-92a3-eaa50d778f4c
Beeby, Stephen
ba565001-2812-4300-89f1-fe5a437ecb0d

Li, Yi, Yong, Sheng, Hillier, Nicholas David George, Arumugam, Sasikumar and Beeby, Stephen (2020) Screen printed flexible water activated battery on woven cotton textile as a power supply for e-textile applications. IEEE Access, 206958 - 206965. (doi:10.1109/ACCESS.2020.3038157).

Record type: Article

Abstract

Electronic textiles (e-textiles) development has been attracting significant research interest over the past two decades, especially in the field of wearable electronics. Fabric based flexible batteries are an attractive solution to the challenge of powering e-textiles. This work presents a simple and scalable textile primary battery, produced via a low-cost screen-printing manufacturing process. The device architecture is purposefully simple, based on a standard aluminum-silver redox reaction and a salt bridge. The battery as manufactured is inactive and requires the addition of water to be activated, and it can therefore be classified as a reserve battery. The battery is suitable for long-term storage, having negligible self-discharge rates. Initial batteries achieved a total area capacity of 101.6 μ Ah/cm 2 and an energy density of 2.178 mWh/cm 3 above 0.8 V. Further refinements of the battery include the inclusion of a novel membrane separator within the woven cotton textile layer and blending the metal salts with polyvinyl alcohol to reduce the number of textile layers. This optimization resulted in an improved performance of 166.8 μ Ah/cm 2 in area capacity and 3.686 mWh/cm 3 in energy density above 0.8 V. This work has demonstrated the feasibility of an aluminum-silver reserve textile battery and demonstrates a novel method for printing a phase inversion membrane separator into the textile. Following an encapsulation process, this flexible textile battery can be easily integrated into a standard woven textile, providing a robust, lightweight and flexible power supply.

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Accepted/In Press date: 10 November 2020
e-pub ahead of print date: 16 November 2020

Identifiers

Local EPrints ID: 445217
URI: http://eprints.soton.ac.uk/id/eprint/445217
ISSN: 2169-3536
PURE UUID: f069a2f7-9f24-4cf1-b7f2-b723aabe2e07
ORCID for Sheng Yong: ORCID iD orcid.org/0000-0002-8588-5981
ORCID for Sasikumar Arumugam: ORCID iD orcid.org/0000-0002-7783-1799
ORCID for Stephen Beeby: ORCID iD orcid.org/0000-0002-0800-1759

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Date deposited: 25 Nov 2020 17:32
Last modified: 25 Nov 2020 17:32

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