Solid electrolyte for organic batteries
AssigneeInnovationLab GmbH
InventorsAndreas Wild, Michael Korell, Simon Münch, Alexandra Lex-Balducci, Johannes Brendel, Ulrich Sigmar Schubert
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Abstract
A process can be used to produce a charge storage unit, especially a secondary battery, the electrodes of which contain an organic redox-active polymer, and which includes a polymeric solid electrolyte. The solid electrolyte is obtained by polymerizing from mixtures of acrylates with methacrylates in the presence of at least one ionic liquid, which imparts advantageous properties to the charge storage unit.
Claims20
A process for producing a charge storage unit, the process comprising:
- (a) polymerizing a mixture M comprising at least one compound of the formula (I), at least one compound of the formula (II):
- wherein RA, RM are independently selected from the group consisting of hydrogen, an alkyl group, a (poly)ether group, an aryl group, an aralkyl group, an alkaryl group, and a haloalkyl group,
- and at least one ionic liquid IL, to obtain a polymer electrolyte Pele, and
- (b) disposing the polymer electrolyte Pele obtained in (a) between two electrodes Ecat and Ean, wherein Ecat and Ean each independently comprise at least one conductivity additive L and at least one organic redox-active polymer Predox selected from the group consisting of polyimides and polymers comprising m units of the general formula (III):
- wherein m is an integer ≥4, W is a repeat unit, Sp is an organic spacer and RX is an organic redox-active group, wherein the bond identified by (i) in a unit of the formula (III) binds to the bond identified by (ii) in an adjacent unit of the formula (III).
A charge storage unit, comprising a polymer electrolyte Pele disposed between two electrodes Ecat and Ean, wherein Ecat and Ean each independently comprise at least one conductivity additive L and at least one organic redox-active polymer Predox selected from the group consisting of polyimides and polymers comprising m units of the general formula (III):
- wherein m is an integer ≥4, W is a repeat unit, Sp is an organic spacer and RX is an organic redox-active group, wherein the bond identified by (i) in a unit of the formula (III) binds to the bond identified by (ii) in an adjacent unit of the formula (III),
- wherein
- the polymer electrolyte Pele is obtained by polymerizing a mixture M comprising at least one compound of the formula (I), at least one compound of the formula (II):
- wherein RA, RM are independently selected from the group consisting of hydrogen, an alkyl group, a (poly)ether group, an aryl group, an aralkyl group, an alkaryl group, and a haloalkyl group,
- and at least one ionic liquid IL.
Dependencies are inferred from the claim text.