A Radio Frequency Identification device according to one embodiment of the present invention includes a rechargeable solid state battery, control circuitry coupled to the rechargeable solid state battery, and a power source for recharging the rechargeable solid state battery. In some embodiments the polyoxometalate, it’s counterions or both may comprise Mn andor Ce. The occluder stem is strengthened to resist deformation and damage from the forces applied by the actuator pad. The rotating housing and the rotor each circumscribe a stationary shaft. During code writing key value pairs are maintained in arrays and are used to generate styles and attributes, which are further used to generate HTML. The data is accessed using a security restriction defined by the custom data type.