Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery that has a uniform particle size and high packing density, and that is capable of increased battery capacity and improved coulomb efficiency. When producing a nickel composite hydroxide that is a precursor to the cathode active material by supplying an aqueous solution that includes at least a nickel salt, a neutralizing agent and a complexing agent into a reaction vessel while stirring and performing a crystallization reaction, a nickel composite hydroxide slurry is obtained while controlling the ratio of the average particle size per volume of secondary particles of nickel composite hydroxide that is generated inside the reaction vessel with respect to the average particle size per volume of secondary particles of nickel composite hydroxide that is finally obtained so as to be 0.2 to 0.

Abstract: A thermal priority fuel cell power plant includes a cell stack assembly for generating an electrical power output. The cell stack assembly includes an anode, a cathode, and a waste heat recovery loop. The waste heat recovery loop is configured to remove waste heat generated from the electrochemical reaction and is thermally coupled to the cell stack assembly for managing the waste heat of the cell stack assembly and for supplying thermal power to a thermal load demand. The waste heat recovery loop includes a heat exchanger in heat exchange relationship with the coolant outlet conduit and the thermal load demand. A controller is operatively associated with the cell stack assembly and the waste heat recovery loop. The controller controls the operation of the cell stack assembly by adjusting a fuel cell power plant parameter responsive to the thermal load demand.

Abstract: A separator includes a polyolefin base film and a coating layer, the coating layer containing inorganic particles having an average particle size of about 1 nm to about 700 nm and an organic binder of a polyvinylidene fluoride homopolymer, the coating layer having a density of about 1.2 g/cm3 to about 2 g/cm3, the coating layer being disposed on one or both sides of the base film.

Abstract: A nonaqueous electrolyte secondary battery includes a power generating element including a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer. A main plane having the smaller area, between a main plane of the positive electrode active material layer and a main plane of the negative electrode active material layer, has an approximately rectangular shape with a short side having a length of 132 mm or more. The positive electrode active material layer and the negative electrode active material layer are provided such that the main plane of the positive electrode active material layer and the main plane of the negative electrode active material layer face each other with a separator interposed therebetween, and the positive electrode active material layer contains a binder in an amount of 2 mass % or more and 3.5 mass % or less.

Abstract: A stainless steel member for a separator of a solid polymer fuel cell has excellent cell properties with little deterioration in performance over long periods of operation without worsening of the corrosion resistance of a stainless steel separator. The stainless steel member has a stainless steel base metal, and a passive film and electrically conductive precipitates both provided on a surface of the stainless steel base metal. The electrically conductive precipitate penetrates the passive film and includes a substance originating from the stainless steel base metal. An electrically conductive layer comprising a nonmetallic electrically conductive substance is preferably provided on the surface of the passive film, and the electrically conductive layer is preferably electrically connected to the stainless steel base member through the electrically conductive precipitates.

Abstract: An intelligent multiple-loop electric vehicle cooling system includes a battery pack, an electric drive module, a battery radiator, an electric drive module radiator, electric pumps, pass-through valves, three-way valves, a PTC heater, a heat exchanger. The cooling system is provided with two electric pumps, two pass-through valves, and three three-way valves that are connected through pipelines to form multiple loops. Compared with the prior art, by means of the present invention, multiple three-way valves and pass-through valves are disposed, to connect pipelines to form loops meeting different cooling or heating requirements. These loops are selectively opened or closed according to features and working states of a battery pack and an electric drive module of an electric vehicle, to ensure temperature balance of the electric vehicle and efficient operation of the electric vehicle.

Abstract: An all-solid-state thin-film battery according to an aspect of the present disclosure includes: a solid electrolyte layer; a cathode active material layer; a cathode current collector layer including a first portion and a second portion; an anode terminal layer; and an anode layer including a third portion and a fourth portion. The first contact surface between the solid electrolyte layer and the cathode active material layer, the second contact surface between the solid electrolyte layer and the first portion of the cathode current collector layer, and the third contact surface between the third portion of the anode layer and the anode terminal layer are located within a single plane.

Abstract: The present application is directed to mesoporous carbon materials comprising bi-functional catalysts. The mesoporous carbon materials find utility in any number of electrical devices, for example, in lithium-air batteries. Methods for making the disclosed carbon materials, and devices comprising the same, are also disclosed.

Abstract: A positive electrode electrolyte (22) and a negative electrode electrolyte (32) that are used in this energy storage battery have a pH within the range from 2 to 8 (inclusive). An ion exchange membrane, which is obtained by graft-polymerizing styrenesulfonate to a resin film base material that uses an ethylene-vinyl alcohol copolymer as a matrix, is used as a diaphragm (12) of this energy storage battery.

Abstract: A voltage measurement circuit including a current mirror having an input branch in series with a first resistive element between first and second nodes of application of said voltage, and having an output branch providing a current representative of said voltage.

Abstract: A fuel cell system includes a fuel cell having a housing that encases the fuel cell, a supply line for a fuel cell fuel, and an exhaust gas line for fuel-cell exhaust gas. In this arrangement the supply line extends in the exhaust gas line, and the exhaust gas line encases the supply line while forming a space. Any leakage in the supply line thus results in the fuel being flushed out by means of the exhaust gases flowing in the exhaust gas line so that higher system reliability and a reduction in costs can be achieved.

Abstract: A producing method of a fuel cell stack includes a transfer robot configured to clamp and to transfer a membrane electrode assembly (MEA) and a gas diffusion layer (GDL) component. A feeding testing unit is configured to check a stacked status of the MEA and the GDL component while the MEA and the GDL component are transferred and stacked by the transfer robot. A control unit is configured to receive a signal of the feeding test unit and to transmit an error signal when it is determined that the MEA and the GDL component are erroneously stacked.

Abstract: A power supply device comprises plural battery cells having electrode portions, and bus bars connecting the electrode portions of the plural battery cells each other. The bus bar comprises a thin portion thinner than the other portion formed in at least one part of the end edge of the bus bar, and are welded to the electrode portion of the battery cell through the thin portion. The electrode portion comprises a pedestal portion, and an electrode terminal projecting from the pedestal portion, and the thin portion is disposed at the side surface of the electrode terminal. By this, at the time of welding the bus bar the thin portion is directly welded to the electrode portion, and without using other parts of the welding ring or the like the welding process is streamlined.

Abstract: Provided is a redox flow battery including a positive electrode cell having a positive electrode and a catholyte solution; a negative electrode cell having a negative electrode and an anolyte solution; and an ion-exchange membrane disposed between the positive electrode cell and the negative electrode cell, wherein the catholyte solution and the anolyte solution each includes a non-aqueous solvent, a supporting electrolyte, and an electrolyte, and wherein the electrolyte includes a metal-ligand coordination compound, and at least one of the metal-ligand coordination compounds includes a ligand having an electron donating group.

Abstract: A battery includes at least one battery cell in a battery cell housing and includes a housing cover having a monitoring circuit. An electrode of the at least one battery cell is connected in an electrically conductive manner to the battery cell housing via a switching mechanism in the monitoring circuit. The monitoring circuit is configured to open the switching mechanism when a malfunction signal is detected. The switching mechanism is closed during normal operation. Separate contacts provide contact to the cell housing in a module assembly and the electrode is disconnectable from the battery cell housing.

Abstract: A control arrangement in a fuel cell system for producing electricity with fuel cells, the fuel cell system including means for recirculating fuel through the anode sides of the fuel cells, and at least one system controller in a control processor for controlling the operation of the fuel cell system. The control arrangement includes means for performing a substantially asynchronous chemical reaction rates calculation process of at least one of fuel composition and fuel flow rate to accomplish information in a substantially iterative process on at least recirculation ratio of the fuel recirculation through anodes and means for generating, in a substantially synchronous process with the system controller process, fuel utilization (FU) information and Carbon formation information by utilizing the latest available recirculation ratio information provided by said asynchronous process.

Abstract: An embodiment of the present invention provides a battery pack comprising a plurality of battery cells; a protective circuit module coupled to at least two battery cells; and a case accommodating the battery cells and the protective circuit module, wherein the two battery cells are disposed on a surface of the case, and the protective circuit module is disposed between the two battery cells on the surface of the case.

Abstract: A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, a second area where a reformer and a heat exchanger are provided, and a third area where an evaporator is provided. A stress relaxing portion for relaxing heat stress is provided at least along a border between the first area and the second area, along a border between the second area and the third area, or along an outermost portion of the third area.

Abstract: Provided is a battery cell stack in which the electrical resistance between a current collector plate and an end bipolar plate is unlikely to increase when charging and discharging are repeated. A battery cell stack includes a current collector plate electrically connected to each of a pair of end bipolar plates located at both ends in the stacking direction. In the battery cell stack, two members in contact with each other between the current collector plate and the end bipolar plate are made of materials such that, when an accelerated test satisfying the following conditions 1 to 3 is performed, the electrical resistance value between the current collector plate and the end bipolar plate after the accelerated test is 1.

Abstract: A fuel cell includes a membrane electrode assembly, a separator, a fluid channel, a fluid manifold, a plurality of protruding elastic members, and a plurality of sealing members. A fluid is to flow in a stacking direction through the fluid manifold. A connection channel is provided between the plurality of protruding elastic members to connect the fluid channel and the fluid manifold. The plurality of sealing members are provided adjacent to the plurality of protruding elastic members in the stacking direction and extend in a direction to cross a flow direction in which the fluid flows along the connection channel. Each of the plurality of protruding elastic members has overlapping regions that overlap the plurality of sealing members as seen from the stacking direction. The overlapping regions are separated from each other in the flow direction.