Microfibrillated cellulose as reinforcement for Li-ion battery polymer electrolytes with excellent mechanical stability

Newly Elaborated Multipurpose Polymer Electrolyte Encompassing RTILs for Smart Energy-Efficient Devices

“…The most important information that can be assumed from the ESW test are as follows: (i) the presence of a well-defined lithium deposition/ stripping couple of peaks confirms both the proper working of the solid polymer electrolyte in lithium cell as well as the presence of a porous and ion-transporting interface, (ii) the safe operation of the system under standard working conditions, since the anodic breakdown occurs at potentials higher than 4 V versus Li, and (iii) the purity of the entire system demonstrated by the very flat plateau in the stability region. 55 In view of practical applications, the polymer electrolyte membrane was assembled in a lab-scale all-solid-state lithium polymer cell, and its electrochemical behavior was investigated by means of galvanostatic charge/discharge cycling as a function of the cycle number at ambient temperature. The cell was assembled by combining a lithium metal anode with an electrode−electrolyte composite prepared by light curing the polymer electrolyte directly onto the LiFePO 4 cathode surface, a rapid and easily scalable procedure detailed in section 2.4.…”

Review of nanocellulose for sustainable future materials

“…114 Using microfibrillated cellulose as reinforcement for LIB polymer electrolytes, composite membranes with excellent mechanical properties (E~80 MPa), electrical high ionic conductivity (approaching 10 3 S/cm), and stable overall electrochemical performances was also reported. 115 Very recently, a nanofibrillated cellulose composite with a liquid electrolyte was reported for a very high elastic modulus around 400 MPa while the values of ionic conductivity is about 5×10 -5 S/cm for LIB application. 116 As another type of energy storage type, Zhu et al investigated sodium-ion battery (SIB) using natural wood fiber as electrolyte reservoir.…”

UV-cured Al2O3-laden cellulose reinforced polymer electrolyte membranes for Li-based batteries

“…Cellulose reinforced polymer electrolyte membranes have already been proposed in literature [16,18,19] and it has been shown that the use of such reinforcement can increase the flexibility and mechanical resistance of a UV cured plasticized polymer electrolyte A C C E P T E D M A N U S C R I P T membranes, but, when cellulose is used in the form of handsheet, it generally affects the ionic mobility inside the matrix. [16] According to the literature on composite polymer electrolytes and aiming to restore satisfying conductivity values, a finely designed paper handsheet containing alumina (Al 2 O 3 ) nano particles has been produced to be used as reinforcement in a UV cured plasticised polymer electrolyte membrane, being known that the addition of such fillers improves the conductivity of polymer hosts and their interfacial properties in contact with the lithium electrode.…”