Disclosed is a microsensor package. Particularly, disclosed is a microsensor package configured such that a substrate with a sensor electrode is formed with a plurality of pores penetrating vertically therethrough, the lower surface of the substrate is formed with a bonding portion, and the pores under the sensor electrode pad are provided therein with respective connecting portions electrically connecting the sensor electrode pad and the bonding portion, whereby it is possible to provide a light, slim, and compact microsensor package, and it is possible to mount the microsensor package to a printed circuit board (PCB) without wire bonding.

A device includes an electrolyte disposed between a layer of graphene and liquid metal. A system based upon the device includes a substrate having first and second layers of graphene and an enclosure disposed thereon. The enclosure encases the first and second layers of graphene and has a channel formed therein. A first end of the channel is disposed over at least a portion of the first layer of graphene and a second end of the channel is disposed over at least a portion of the second layer of graphene. An electrolyte disposed within the channel. Liquid metal is disposed within the electrolyte such that the liquid metal is separated from the first layer of graphene and the second layer of graphene by the electrolyte. The liquid metal is movable within the electrolyte to reconfigure power delivery to different connected loads.

According to the invention there is provided a fluidic port (8-9) for a refillable structural composite electrical energy storage device (1), and a method of producing same. The device may be a battery or supercapacitor with first and second electrodes (2,3) which are separated by a separator structure (6), wherein the device contains an electrolyte (4) which may further contain active electrochemical reagents. The fluidic port allows the addition, removal of electrolyte fluids, and venting of any outgassing by products.