Abstract: A positive electrode active material is granular and comprises a compound represented by formula 1: (NaxAy)a?bM1[M2(CN)6]?, wherein A is selected from at least one of alkali metal elements and has an ionic radius greater than that of sodium, M1 and M2 are each independently selected from at least one of transition metal elements, 0<y?0.2, 0<x+y?2, 0???1, a+b=2, 0.85?a?0.98, (represents a vacancy, and b represents the number of vacancies; and when the positive electrode active material is dissolved, at a temperature of 20° C., into an aqueous solution having a concentration of 5 g/100 g water, a pH value of the aqueous solution is in a range of 7.6 to 8.5. The positive electrode active material has good cycling and rate performance, and a high specific capacity.

Abstract: The present application provides a positive electrode active material which may be in a particulate form and comprise a compound represented by Formula 1: NaxAyM1[M2(CN)6]?·zH2O??Formula 1 wherein, A is selected from at least one of an alkali metal element and an alkaline earth metal element, and the ionic radius of A is greater than the ionic radius of sodium; M1 and M2 are each independently selected from at least one of a transition metal element, 0<y?0.2, 0<x+y?2, 0<??1, and 0?z?10; and the particles of the positive electrode active material may have a gradient layer in which the content of the A element decreases from the particle surface to the particle interior.

Abstract: Disclosed is a bolster of a bogie, wherein a secondary suspension connected with a transverse beam of the bogie is arranged below the bolster, and a third suspension connected with a vehicle body is arranged above the bolster. The bolster of the bogie of the present invention realize a functional separation by adding a suspension between the bottome of the bolster and the transverse beam to make the frame and the vehicle body be connected through a two-stage suspension, so that the third suspension above the bolster is only used to undertake a transverse displacement function, and the secondary suspension under the bolster is only used to undertake a rotation function, thereby further increasing displacement and relative rotation angle between the vehicle body and the bogie when the vehicle passes through a curve, and improving curve passing capability of the vehicle.

Abstract: Disclosed is a bolster of a bogie, wherein a secondary suspension connected with a transverse beam of the bogie is arranged below the bolster, and a third suspension connected with a vehicle body is arranged above the bolster. The bolster of the bogie of the present invention realize a functional separation by adding a suspension between the bottome of the bolster and the transverse beam to make the frame and the vehicle body be connected through a two-stage suspension, so that the third suspension above the bolster is only used to undertake a transverse displacement function, and the secondary suspension under the bolster is only used to undertake a rotation function, thereby further increasing displacement and relative rotation angle between the vehicle body and the bogie when the vehicle passes through a curve, and improving curve passing capability of the vehicle.

Abstract: The present invention discloses a method of manufacturing a (plastic) card with a flexible inlay. Said method comprises following steps: manufacturing a upper housing and a lower housing; coating colloidal on inner surfaces of the upper housing and the lower housing; placing the inlay in said upper housing or the lower housing; closing the upper housing and the lower housing together to have a housing-closed card; laminating the closed housings to have a finished card. Preferably, there is provided in either the upper housing or the lower housing a slot(s) in match with the inlay(s); the inlay is placed within the slot accordingly. By means of the invention, a card with flexible inlay is manufactured, for example, an intelligent card (i.e., smart card) comprising a flexible and active circuit board and a flexible display, and properties of a new kind of card with flexible inlay are guaranteed.

Abstract: A smart card is disclosed by the present invention. The smart card comprises a flexible keyboard, an ultra thin flexible battery, an infrared data interface, a flexible display, a flexible circuit board and a CPU kernel; wherein the flexible circuit board provides electrical connection for individual parts of the smart card, the flexible keyboard is used for inputting by user, the ultra thin flexible battery provides power supply to the smart card, the infrared data interface is used for infrared communication with an external terminal, the flexible display is used for man-machine interaction, the CPU kernel controls individual parts of the smart card and the smart card is packaged with plastic material. The invention enables the smart card to authenticate off-line user, therefore the security of electronic transaction is ensured. The smart card product of the invention can be carried and used by user conveniently, and can reduce product costs and has very wide application prospect.

Abstract: The present invention discloses a method of manufacturing a (plastic) card with a flexible inlay. Said method comprises following steps: manufacturing a upper housing and a lower housing; coating colloidal on inner surfaces of the upper housing and the lower housing; placing the inlay in said upper housing or the lower housing; closing the upper housing and the lower housing together to have a housing-closed card; laminating the closed housings to have a finished card. Preferably, there is provided in either the upper housing or the lower housing a slot(s) in match with the inlay(s); the inlay is placed within the slot accordingly. By means of the invention, a card with flexible inlay is manufactured, for example, an intelligent card (i.e., smart card) comprising a flexible and active circuit board and a flexible display, and properties of a new kind of card with flexible inlay are guaranteed.