CPC H01M 4/366 (2013.01) [C01G 53/50 (2013.01); H01M 4/38 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/36 (2013.01); C01P 2002/22 (2013.01); C01P 2002/74 (2013.01); C01P 2002/76 (2013.01); C01P 2002/77 (2013.01); C01P 2004/03 (2013.01); C01P 2006/40 (2013.01); H01M 2300/0005 (2013.01)] | 20 Claims |
1. A layered electrode material for use in a positive electrode of an electrochemical rechargeable zinc battery, the rechargeable zinc battery including a negative electrode comprising zinc and an electrolyte comprising a zinc salt dissolved in water with a pH value between 1 and 7, the layered electrode material comprising:
a plurality of active metal slab layers in a layered configuration, wherein an active metal slab layer comprises:
a plurality of redox active metal centers, M, comprising manganese and at least two other redox active metals, wherein the at least two other redox active metals maintain the layered configuration of the active metal slab layer during cycling;
at least one pillar species; and
a closely-packed anionic sublattice;
a plurality of interlamellar spaces, wherein an interlamellar space separates adjacent active metal slab layers in the layered configuration, and wherein the interlamellar space includes the at least one pillar species;
wherein the layered electrode material has a combined average metal oxidation state in a range of +3 to +4 in an initial charged state; and
wherein the layered electrode material accepts solvated zinc cations via intercalation into the interlamellar space upon reduction, wherein the zinc cations react with the redox active metal centers, M.
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