Abstract: 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 stiffening monomer that in solution or incorporated into a cured polymer modifies a mechanical property such as flexural modulus of the battery cell; adhesion monomers such as a monomer that interacts with one or more surface within a battery to modify or improve adhesion of the electrolyte and the surface; etc.).

Abstract: A composition for an electrolyte, in a precured state, can include polymeric precursor(s), salt(s), optional plasticizer(s), optional additive(s), optional inhibitor(s), and optional initiator(s). The salt(s), additive(s), inhibitor(s), and/or initiator(s) can additionally or alternatively act as plasticizers. The composition can be used to form a gel electrolyte (e.g., in the activated state) such as within a charge storage device (e.g., battery).

Abstract: A method can include: receiving a gel electrolyte precursor solution comprising a polymeric precursor (such as monomers or oligomers), an initiator, and a plasticizer; adding the gel electrolyte precursor solution to a battery stack; wetting the battery stack with the gel electrolyte precursor solution; and curing the gel electrolyte precursor to form a covalently bonded gel electrolyte network interspersed throughout the battery stack.

Abstract: A composition for an electrolyte, in a precured state, can include polymeric precursor(s), salt(s), optional plasticizer(s), optional additive(s), optional inhibitor(s), and optional initiator(s). The salt(s), additive(s), inhibitor(s), and/or initiator(s) can additionally or alternatively act as plasticizers. The composition can be used to form a gel electrolyte (e.g., in the activated state) such as within a charge storage device (e.g., battery).

Abstract: A method can include: receiving a gel electrolyte precursor solution comprising a polymeric precursor (such as monomers or oligomers), an initiator, and a plasticizer; adding the gel electrolyte precursor solution to a battery stack; wetting the battery stack with the gel electrolyte precursor solution; and curing the gel electrolyte precursor to form a covalently bonded gel electrolyte network interspersed throughout the battery stack.