
126 Electrochemically Enabled Sustainability
that they can unfold to free the Li
+
ions to move from one chain loop to the
other, as shown in the schematic diagram in Figure 3.9.
The PEO–LiX polymer membranes, due to their fully solid nature, are sta-
ble in contact with lithium metal that can then be cycled several hundred
times without dendrite formation. In addition, the PEO–LiX electrolytes are
of low cost and easily manufactured for the fabrication of plastic-like batter-
ies (see Figure 3.10).
= Lithium ion
= PEO chain
FIGURE 3.9
Schematic diagram of the lithium ion transport mechanism in a polymer electrolyte formed
by a complex between ...