Disclosed herein is a method for fabricating an ultracapacitor, the method comprising disposing an energy storage cell comprising energy storage media within a housing; and constructing the ultracapacitor to operate within a temperature range between about 80 degrees Celsius to about 210 degrees Celsius.

A battery and capacitor assembly for a hybrid vehicle includes a plurality of battery cells, a plurality of capacitor cells, a cooling plate, a pair of end brackets, and a housing. The plurality of capacitor cells are arranged adjacent to the plurality of battery cells such that the plurality of battery cells and the plurality of capacitor cells form a cell stack. The pair of end brackets are disposed at opposite ends of the cell stack and are attached to the cooling plate. The pair of end brackets compress the plurality of battery cells and the plurality of capacitor cells. The housing is attached to the cooling plate and encloses the cell stack and the pair of end brackets.

A battery and capacitor assembly for a hybrid vehicle includes a plurality of battery cells, a plurality of capacitor cells, a cooling plate, a pair of end brackets, and a housing. The plurality of capacitor cells are arranged adjacent to the plurality of battery cells such that the plurality of battery cells and the plurality of capacitor cells form a cell stack. The pair of end brackets are disposed at opposite ends of the cell stack and are attached to the cooling plate. The pair of end brackets compress the plurality of battery cells and the plurality of capacitor cells. The housing is attached to the cooling plate and encloses the cell stack and the pair of end brackets.

Disclosed is an electrochemical energy storage device, belonging to the technical field of electrochemical energy storage devices. The electrochemical energy storage device comprises: a cover plate (6), which comprises a lead-out column (61) and a fixation plate (62), wherein the lead-out column (61) is an electric conductor, the fixation plate (62) is an insulator, and the lead-out column (61) is fixed on the fixation plate (62) in a vertically penetrating manner; an outer housing (1), which is cylindrical, wherein an opening is provided at at least one end of the outer housing, and the fixation plate (62) is connected to the opening of the outer housing (1) in a sealed manner by means of a sealing ring (9); and a roll core (3), which is arranged at an inner cavity of the outer housing (1), wherein the roll core (3) is welded to a side face of the lead-out column (61) by means of an upper connection piece (4) to achieve electrically conductive connection, and connected in an electrically conductive manner to the other lead-out end of the outer housing (1) by means of a lower connection piece (2); and an upper roll edge (42) used for sheathing the roll core (3) is arranged at a periphery of the upper connection piece (4), and a periphery of the lead-out column (61) and the upper roll edge (42) of the upper connection piece (4) are fixed by means of side-face laser welding. The electrochemical energy storage device has the advantages that the internal resistance is small, the strength is high, the stability is good, and anti-vibration performance can be improved in the process of use.

A power storage module includes: a plurality of power storage devices; a pair of end plates disposed at both ends of the plurality of power storage devices, the end plate including at least a first member and a second member separated from each other; and a binding member including a body part and coupling arms that extend from the body part and are coupled to the pair of end plates, the binding member binding the plurality of power storage devices. The first member includes fixing parts to which the coupling arms are fixed. The second member includes a pressure receiving part that is interposed between the first member and the power storage device and is in direct or indirect contact with the power storage device, and pressing parts that are in direct or indirect contact with base parts of the coupling arms.

A wiring module to be attached to a plurality of power storage elements each having an electrode terminal, the wiring module including: a bus bar to be connected to the electrode terminals; and a flexible substrate that is flexible, wherein the bus bar has an extension portion that extends toward the flexible substrate, the extension portion has a through hole, the flexible substrate side of the through hole is closed off by the flexible substrate, the flexible substrate has a first conductive path for detecting the temperature of an object, and the first conductive path is connected to a thermistor, and the thermistor is disposed in the through hole, the through hole is filled with a resin, and the thermistor is covered with the resin.

An ultracapacitor that includes an energy storage cell immersed in an electrolyte and disposed within an hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about 80 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

An ultracapacitor that includes an energy storage cell immersed in an electrolyte and disposed within an hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about 80 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

A composite particle for an electrochemical device contains an electrode active material, a conductive material, a binder, and 0.1 parts by mass or more and 5 parts by mass or less of a thermally decomposable foaming agent per 100 parts by mass of the composite particle. When a cross section of the composite particle perpendicular to the long axis of the composite particle, and including the midpoint of the long axis is subjected to a map analysis using an electron beam microanalyzer, the value of the ratio of the integrated values of the detection intensities of carbon atoms contained outside and inside the range of the circle the center of which is coincides with the midpoint of the long axis and the diameter of which is one half of the length of the long axis is 4 or more and 15 or less.

An energy storage apparatus includes an energy storage device, a sensor mounted on the energy storage device, a holding member disposed on the energy storage device and holding the sensor in a state where a detection surface of the sensor is exposed toward the energy storage device and an outer case accommodating the energy storage device, the sensor, and the holding member.