Abstract: An electrochemical device (e.g., a battery (cell)) including: an aqueous electrolyte and one or two electrodes (e.g., an anode and/or a cathode), one or both of which is a Prussian Blue analogue material of the general chemical formula AxP[R(CN)6?jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation; L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5, the electrode including a polymer coating to reduce capacity loss.

Abstract: An electrochemical apparatus (e.g., a battery (cell)) including an aqueous electrolyte with electrode stabilizing additives and one or two electrodes (e.g., an anode and/or a cathode), one or both of which is a Prussian Blue analog material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation, L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5 with the electrolyte including an additive to reduce capacity loss of the electrode(s).

Abstract: An electrochemical apparatus (e.g. a battery (cell)) including an aqueous electrolyte and one or two electrodes (e.g., an anode and/or a cathode), one or both of which includes a Prussian Blue analogue (PBA) material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation; L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5, one or both electrodes including a PBA coating to decrease capacity loss.

Abstract: A system and method producing electrodes in an aqueous electrolyte battery that maximizes energy storage, reduces electrochemical decomposition of the electrolyte, and uses Prussian Blue analogue materials for both electrodes, with an anode electrode including an electrochemically active hexacyanometalate group having two possible redox reactions of different potentials. These potentials may be tuned by substituting different electrochemically inactive components.

Abstract: An electrochemical apparatus (e.g. a battery (cell)) including an aqueous electrolyte and one or two electrodes (e.g., an anode and/or a cathode), one or both of which includes a Prussian Blue analogue (PBA) material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation; L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5, one or both electrodes including a PBA coating to decrease capacity loss.

Abstract: An electrochemical apparatus (e.g., a battery (cell)) including an aqueous electrolyte with electrode stabilizing additives and one or two electrodes (e.g., an anode and/or a cathode), one or both of which is a Prussian Blue analogue material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation, L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5 with the electrolyte including an additive to reduce capacity loss of the electrode(s).

Abstract: An electrochemical device (e.g., a battery (cell)) including: an aqueous electrolyte and one or two electrodes (e.g., an anode and/or a cathode), one or both of which is a Prussian Blue analogue material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation; L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5, the electrode including a polymer coating to reduce capacity loss.