NOVELTY - The article comprises a micromachined electrode formed from a porous sintered ceramic composite, an entire anode, a polymer electrolyte and an entire sintered ceramic cathode, and a nonporous electrolyte disposed on the electrode. The electrode has a porosity of less than 20%. The pores of the electrode are filled with an electrolyte that is a liquid or a lithium-conducting block copolymer. The sintered ceramic comprises an intergrowth compound having a crystal structure comprising a first ordered rock salt type layer and a second layer that is an ordered rock salt type layer.    USE - The article such as battery (claimed) is useful in portable electronic devices such as wireless headsets e.g. Bluetooth, cellular telephones, laptop computers, cordless power tools or other appliances, vehicles, backup power systems, or large scale energy storage systems, where the battery is small-scale batteries or microbatteries.    ADVANTAGE - The article can be economically and efficiently fabricated with rapid charging or discharging conditions, increased power density, high performance, high energy density, electrode thickness and capacity per unit area and low energy and power consumption.    DETAILED DESCRIPTION - The article comprises a micromachined electrode formed from a porous sintered ceramic composite, an entire anode, a polymer electrolyte and an entire sintered ceramic cathode, and a nonporous electrolyte disposed on the electrode. The electrode has a porosity of less than 20%. The pores of the electrode are filled with an electrolyte that is a liquid or a lithium-conducting block copolymer. The sintered ceramic comprises an intergrowth compound having a crystal structure comprising a first ordered rock salt type layer and a second layer that is an ordered rock salt type layer or a spinel type layer. The article has a volume of less than 1 mm3 and an energy storage density of 1600 W h/l. The cathode comprises an intergrowth compound. The electrolyte is a deposited film, and an inorganic electrolyte. The electrode has a linear strain differential of less than 1% when the electrode is infiltrated with lithium ions, is planar, includes a wall, and comprises protrusions. The sintered ceramic has a bulk and a surface having a lower porosity than the bulk, and has a smallest dimension of 0.2 mm. The sintered ceramic is able to retain 50% of its initial storage capacity after 6 charge-discharge cycles at a C/20 rate. The ceramic has a linear strain differential of less than 2%. The electrode has a base and protrusions extending 50 micrometers away from the base of the electrode. The protrusions are sized such that all of the bulk are less than 10 micrometers away from the surface, and has an aspect ratio of 3:1 and a pitch of 2:1. An INDEPENDENT CLAIM is included for method for making a small-scale battery or a microbattery.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a microbattery.