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Issue 33, 2014
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Cellulose nanofibril reinforced composite electrolytes for lithium ion battery applications

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Abstract

The present study describes the synthesis and characterization of a series of four composite electrolytes for lithium ion battery applications. The two-phase electrolytes are composed of a soft, ionic conductive poly(ethylene glycol) (PEG) matrix having stiff nanofibrillated cellulose (CNF) paper as reinforcement to provide mechanical integrity. The reinforcing CNF is modified in order to create covalent bonds between the phases which is particularly beneficial when swelling the composite with a liquid electrolyte to enhance the ionic conductivity. After swelling the composite polymer electrolyte, forming a gelled structure, values of ionic conductivity at 5 × 10−5 S cm−1 and an elastic modulus around 400 MPa at 25 °C are obtained.

Graphical abstract: Cellulose nanofibril reinforced composite electrolytes for lithium ion battery applications

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Publication details

The article was received on 06 Mar 2014, accepted on 16 Jun 2014 and first published on 17 Jun 2014


Article type: Paper
DOI: 10.1039/C4TA01139B
J. Mater. Chem. A, 2014,2, 13556-13564
  • Open access: Creative Commons BY license
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    Cellulose nanofibril reinforced composite electrolytes for lithium ion battery applications

    M. Willgert, S. Leijonmarck, G. Lindbergh, E. Malmström and M. Johansson, J. Mater. Chem. A, 2014, 2, 13556
    DOI: 10.1039/C4TA01139B

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