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Green and Scalable Biopolymer-Based Aqueous Polyelectrolyte Complexes for Zinc-Ion Charge Storage Devices

Fernandez-Benito, Amparo (author)
CSIC, Spain
Martinez-Lopez, Juan Carlos (author)
CSIC, Spain
Jafari, Mohammad Javad (author)
Linköpings universitet,Biofysik och bioteknik,Tekniska fakulteten
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Solin, Niclas (author)
Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
Martinez Gil, Jose Gabriel (author)
Linköpings universitet,Sensor- och aktuatorsystem,Tekniska fakulteten
Garcia-Gimenez, Daniel (author)
CSIC, Spain
Ederth, Thomas (author)
Linköpings universitet,Biofysik och bioteknik,Tekniska fakulteten
Inganäs, Olle, 1951- (author)
Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
Carretero-Gonzalez, Javier (author)
CSIC, Spain
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 (creator_code:org_t)
WILEY-V C H VERLAG GMBH, 2023
2023
English.
In: ChemElectroChem. - : WILEY-V C H VERLAG GMBH. - 2196-0216. ; 10:2
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Green and scalable materials are essential to fulfill the need of electrification for transitioning into a fossil-fuels free society, and sustainability is a requirement for all new technologies. Rechargeable batteries are one of the most important elements for electrification, enabling the transition to mobile electronics, electrical vehicles and grid storage. We here report synthesis and characterization of polyelectrolyte complexes of alginate and chitosan, both biopolymers deriving from the sea, for transport of zinc ions in hydrogel electrolytes. We have used vibrational spectroscopy, thermal measurements and microscopy, as well as transport measurements with ohmic or blocking contacts. The transference number for zinc ions is close to 1, the conductivity is approximate to 10 mS/cm, with stability at Zn interfaces seen through 7000 cycles in symmetric zinc//zinc cell. A zinc ion aqueous electrolyte was prepared from blends of chitosan and alginate, by using a simple and scalable route. These green zinc ion electrolytes exhibit a stability window up to 2 V, a zinc ion transference number close to 1, and electrochemical cyclability over 7000 cycles at interfaces to zinc. This biologically derived polyelectrolyte complex offers many possibilities for optimizing transport and stability at electrode interfaces.image

Subject headings

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

Keyword

biopolymer; energy storage; gel-electrolyte; polyelectrolyte; zinc batteries

Publication and Content Type

ref (subject category)
art (subject category)

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