Electroactive and/or piezoelectric active cellulose fiber composite materials produced according to the aminoxide process or the Alternative Cellulose Rudolstadt process for use in electroactive and/or piezoelectric devices namely, actuators, sensors, electrical and mechanical control devices, electroactive assemblies; motion control (dampening) devices; power generation devices; sports equipment, namely, tennis, squash and racquetball racquets, skis, ski boots, golf clubs, bicycles; vehicles...