A polymer electrolyte can be formed from (e.g., by polymerizing) a mixture that includes oligomer(s), additive(s), solvent(s), salt(s), and/or any suitable components. The polymer electrolyte can further or alternatively include monomer(s) (e.g., a stiffen...

A method for forming a shaped battery can include: adding electrolyte to a dry battery cell, shaping the battery cell, relieving stress and/or strain from the battery cell, curing the electrolyte, and/or injection moulding a thermoplastic or thermoset arou...