A capacitor-type power supply unit including: a positive bus to which a plurality of capacitor is connected in parallel at each positive-electrode terminal thereof with maintaining equal intervals therebetween, and extends in a parallel direction; and an negative bus to which the plurality of capacitor is connected in parallel, at each negative-electrode terminal thereof with maintaining equal intervals therebetween, and extends in the parallel direction, in which the positive bus has a positive-electrode-side external connection part that is set at a position (SD) separated from the positive-electrode first end by a range of 20% to 30% of the total length in the longitudinal direction thereof, and the negative bus has an negative-electrode-side external connection part that is set at a position (SD) separated from the negative-electrode second end by a range of 20% to 30% of the total length in the longitudinal direction thereof.

A power storage device which has improved performance such as higher discharge capacity and in which deterioration due to peeling or the like of an active material layer is less likely to be caused is provided. In an electrode for the power storage device, phosphorus-doped amorphous silicon is used for the active material layer over a current collector as a material that can be alloyed with lithium, and niobium oxide is deposited over the active material layer as a layer containing niobium. Accordingly, the capacity of the power storage device can be increased and the cycle characteristics and the charge-discharge efficiency can be improved.

A power storage device which has improved performance such as higher discharge capacity and in which deterioration due to peeling or the like of an active material layer is less likely to be caused is provided. In an electrode for the power storage device, phosphorus-doped amorphous silicon is used for the active material layer over a current collector as a material that can be alloyed with lithium, and niobium oxide is deposited over the active material layer as a layer containing niobium. Accordingly, the capacity of the power storage device can be increased and the cycle characteristics and the charge-discharge efficiency can be improved.

The present invention provides an electricity charging/discharging device with insulation package enclose member having electrode plate pair with multiple-sided electric conductive terminals, wherein both the electrode plate pair with multiple-sided electric conductive terminals and the section of the electric conductive terminal adjacent to the connected electrode plate extending from at least two sides thereof to the external for inputting/outputting electric energy are sealed covered by a packing material with insulation property to form a full-closed type electricity charging/discharging device with insulation package enclose member such as Lithium-ion Batteries, for instance Lithium Iron Phosphate (LFP) Battery, Lithium Nickel Manganese Cobalt Oxide (NMW) Battery, and Lithium Polymer Battery, or a supercapacity, so the electrode plate pair is able to output or input electric energy to the exterior through an electric conductive interface formed by at least two-sided electric conductive terminal.

An electrochemical device includes a storage element in which two types of electrodes are superposed on each other with a separator interposed therebetween and an outer container made of a flexible film that houses the storage element and an electrolyte solution, the two types of electrodes each including an active material-applied portion where an active material layer is formed on current collector 9, and an active material-non-applied portion, wherein each of the two types of electrodes is provided with an electrode terminal 7 and support tab 13, one end portion of electrode terminal 7 being superposed on the active material-non-applied portion of the electrode in the outer container, the other end portion of electrode terminal 7 extending to an outside of the outer container, support tab 13 sandwiching the active material-non-applied portion along with the one end portion of electrode terminal 7 in the outer container, and the active material-non-applied portion, electrode terminal 7, and support tab 13 are joined at a position where they are superposed on one another. Support tab 13 has a planar shape without any corner portion of 90 degrees or less.

An electrochemical device includes a storage element in which two types of electrodes are superposed on each other with a separator interposed therebetween and an outer container made of a flexible film that houses the storage element and an electrolyte solution, the two types of electrodes each including an active material-applied portion where an active material layer is formed on current collector 9, and an active material-non-applied portion, wherein each of the two types of electrodes is provided with an electrode terminal 7 and support tab 13, one end portion of electrode terminal 7 being superposed on the active material-non-applied portion of the electrode in the outer container, the other end portion of electrode terminal 7 extending to an outside of the outer container, support tab 13 sandwiching the active material-non-applied portion along with the one end portion of electrode terminal 7 in the outer container, and the active material-non-applied portion, electrode terminal 7, and support tab 13 are joined at a position where they are superposed on one another. Support tab 13 has a planar shape without any corner portion of 90 degrees or less.

A lithium ion energy and power system including: a housing containing: at least three electrodes including: at least one first electrode including a cathodic faradaic energy storage material; at least one second electrode including an anodic faradaic energy storage material; and at least one third electrode including a cathodic non-faradaic energy storage material, wherein the at least one first, second, and third electrodes are adjacent as defined herein, and the at least one second electrode is electrically isolated from the electrically coupled at least one first electrode and the at least one third electrode; a separator between the electrodes; and a liquid electrolyte between the electrodes. Also disclosed is a method of making and using the disclosed lithium ion energy and power system.

A lithium ion energy and power system including: a housing containing: at least three electrodes including: at least one first electrode including a cathodic faradaic energy storage material; at least one second electrode including an anodic faradaic energy storage material; and at least one third electrode including a cathodic non-faradaic energy storage material, wherein the at least one first, second, and third electrodes are adjacent as defined herein, and the at least one second electrode is electrically isolated from the electrically coupled at least one first electrode and the at least one third electrode; a separator between the electrodes; and a liquid electrolyte between the electrodes. Also disclosed is a method of making and using the disclosed lithium ion energy and power system.

Apparatus and techniques are described herein for providing a plate such as can be included as a portion of a hybrid energy storage device assembly. A hybrid device can include capacitor and battery structures, such as can include a sealed stack of hybrid bipolar plates comprising silicon wafers.

Apparatus and techniques are described herein for providing a plate such as can be included as a portion of a hybrid energy storage device assembly. A hybrid device can include capacitor and battery structures, such as can include a sealed stack of hybrid bipolar plates comprising silicon wafers.