http://www.google.com/patents?id=ftiZAAAAEBAJ&printsec=frontcover&dq=Redox+shuttles+for+high+voltage+cathodes&source=bl&ots=V318sPtkA3&sig=VypaNE89_PbRaUxiHHRS2bF1nqA&hl=en&sa=X&ei=2GQ_UMrOGoeq2gX6i4G4DQ&ved=0CDgQ6AEwAw
A cell according to claim 1 wherein the phenothiazine compound is substituted with one or more acyl, acyloxy, alkaryl, alkoxy, acetamido, amido, amino, aryl, aralkyl, alkyl carboxyl, aryl carboxyl, alkylsulfonyl, benzoyl, carbamoyl, carbamido, carboxy, cyano, formyl, halo, haloacetamido, haloacyl, haloalkylsulfonyl, haloaryl, hydroxyl, isothiocyanato, methylsulfonyloxyl, nitro, oxo, oxybenzoyl or phosphenoxy groups or combination thereof.
A cell according to claim 1 wherein the phenothiazine compound comprises 10-methyl-phenothiazine, 10-ethyl-phenothiazine, 3-chloro-10-ethyl-phenothiazine, 10-isopropyl-phenothiazine or 10-acetyl-phenothiazine or mixture thereof.
A cell according to claim 1 wherein the phenothiazine compound comprises 2-perfluoromethyl-phenothiazine, 2-chloro-10-methyl-phenothiazine, 2-ethyl-10-methyl-phenothiazine, 3-bromo-10-ethyl-phenothiazine, 3-chloro-10-methyl-phenothiazine, 3-iodo-10-methyl-phenothiazine, 10-methyl-phenothiazin-3-ol, 10-methyl-phenothiazin-3-ylamine, 2,10-dimethyl-phenothiazine, 3,10-dimethyl-phenothiazine, 3-methyl-10-ethyl-phenothiazine, 4,10-dimethyl-phenothiazine, 3,7,10-trimethyl-phenothiazine, 10-(2-chloroethyl)-phenothiazine, 10-formyl-phenothiazine, 10-methoxy-phenothiazine, 10-methoxymethyl-phenothiazine, 10-phenyl-phenothiazine, 10-propionyl-phenothiazine, 10-methyl-phenothiazine-4-carboxylic acid or mixture thereof.
A cell according to claim 1 wherein the phenothiazine compound comprises 2-cyano-10-perfluoromethylsulfonyl-phenothiazine, 2-methoxy-10-perfluoromethylsulfonyl-phenothiazine, 2-perfluoromethyl-10-perfluoromethylsulfonyl-phenothiazine, 10-perfluoromethyl-phenothiazine, 10-perfluoromethylsulfonyl-phenothiazine, 10-(1,1,1,2,3,3)-hexafluoropropyl-phenothiazine or mixture thereof.
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