Abstract: A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer (PSE layer) 13 that is amorphous and formed on the positive-electrode active-material layer 12 by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer (NSE layer) 23 that is amorphous and formed on the negative-electrode active-material layer 22 by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 of the electrode bodies 1 and 2 are in contact with each other, to a heat treatment under application of a pressure to crystallize the PSE layer 13 and the NSE layer 23.

Abstract: In one aspect, a separator that includes a porous substrate; and a coating layer including an inorganic compound-organic/inorganic binder, and a binder polymer, and a rechargeable lithium battery including the separator is provided.

Abstract: A process for preparing intermetallic nanoparticles of two or more metals is provided. In particular, the process includes the steps: a) dispersing nanoparticles of a first metal in a solvent to prepare a first metal solution, b) forming a reaction mixture with the first metal solution and a reducing agent, c) heating the reaction mixture to a reaction temperature; and d) adding a second metal solution containing a salt of a second metal to the reaction mixture. During this process, intermetallic nanoparticles, which contain a compound with the first and second metals are formed. The intermetallic nanoparticles with uniform size and a narrow size distribution is also provided. An electrochemical device such as a battery with the intermetallic nanoparticles is also provided.

Abstract: A battery stack includes a plurality of curved base layers, at least one curved bipolar layer, at least one anode layer disposed between a first curved base layer of the plurality of curved base layers and the at least one curved bipolar layer, at least one cathode layer disposed between the at least one bipolar layer, a second base layer and a plurality of seals. The first base layer and the at least one bipolar layer are provided with one or more seals that seal the first base layer to the at least one bipolar layer without contacting the anode and/or the cathode layer.

Abstract: A fuel cell system includes at least one fuel cell having an anode chamber, a cathode chamber, a hydrogen pressure reservoir, a recirculation line connecting an outlet of the anode chamber to an inlet of the anode chamber, a recirculation conveyor with a compressor wheel in the region of the recirculation line, and a turbine for expanding the hydrogen that is under pressure before entry into the anode chamber. The recirculation conveyor is driven at least partially by the turbine. The turbine and the compressor wheel are formed in one component.

Abstract: The present invention discloses a high temperature-proof device for a lithium battery, which is installed in a casing of a lithium battery. The casing has a sealing board on one face thereof. The sealing board has at least one through-hole where a pressure relief module is installed. The pressure relief module has a top cover protruding from the sealing board. The top cover has at least one exhaust hole and an engagement member arranged inside the top cover. The engagement member has a first exhaust channel. A low-melting point compound is arranged inside the first exhaust channel. The present invention releases the high-temperature gas generated by inappropriate chemical or electric reaction inside a lithium battery. Thus, the present invention can prevent a lithium battery from burning or explosion caused by the high-temperature gas. Therefore, the present invention can effectively promote safety of lithium batteries.

Abstract: Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene.

Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.

Abstract: A battery pack having improved safety while implementing its small size and light weight. The battery pack includes an electrode assembly, a protective circuit module and an electrode tab. The electrode assembly has an electrode tab. The protective circuit module has a first surface and a second surface opposite to the first surface. In the protective circuit module, the first surface is positioned to face a surface to which the electrode tab of the electrode assembly is extended. The connection tab is positioned on the second surface of the protective circuit module so as to connect the electrode tab and the protective circuit module.

Abstract: A battery pack having at least two battery cells arranged parallel to each other, a protection circuit module adjacent to at least one of the battery cells, and a temperature measuring member attached to the protection circuit module and extending between, and in contact with, the two battery cells, the temperature measuring member measuring a temperature of one of the battery cells, the temperature measuring member being fixedly and removably attached to the at least one of the battery cells.

Abstract: Disclosed is a fuel cell system which comprises a power generation means that includes a plurality of fuel cells that are connectable to one another in series or in parallel through connecting terminals, a fuel gas supply conduit through which fuel electrodes of all or part of the fuel cells are connected in series and an oxidant gas supply conduit through which air electrodes of all or part of the fuel cells are connected in series; a switching means that switches an electric connection condition between the connecting terminals and connecting means of an external load device; a fuel gas supply means that supplies the fuel gas supply conduit with a fuel gas and an oxidant gas supply means that supplies the oxidant gas supply conduit with an oxidant gas; a load detecting means that detects a load of the external load device; and a control means that selects, based on an already derived relation between overall electric power output curves corresponding to the number of the fuel cells that are mutually connect

Abstract: A battery assembly provided with an adhesive stop mechanism is disclosed. The battery assembly includes multiple battery cells, a primary retaining frame, a secondary retaining frame, two common electrodes and a bonding layer. The primary and second retaining frames are combined together to constitute accommodation chambers for housing the battery cells. The primary retaining frame includes an outer deck and a shallow deck, wherein the outer deck is formed with adhesive application pores and the shallow deck is formed with stop portions corresponding to the adhesive application pores. The adhesive composition applied through the adhesive application pores is confined by the stop portions and subsequently cured into a bonding layer that firmly holds the battery cells within the accommodation chambers.

Abstract: A mechanism for transferring a flexible sheet material (202) from a first substrate (203) to a second substrate (204) is disclosed, the mechanism having a head rotatable and translatable relative to the first and second substrates, the head (201) comprising a cylindrical curved portion (205) having an outer face (207) across which are provided openings (206) configured to apply air pressure to sheet material (202) contacting the outer surface (207) such that the head (201) is adapted to transfer the sheet material (202) from the first substrate (203) to the second substrate (204) by a combination of rotation and translation of the head (201).

Abstract: There is provided a battery pack including a current control element which is inserted in a discharge current path, and in which a thermostat and a heat sensitive resistance element whose resistance value increases in response to an increase in temperature are connected in parallel; and a detection unit that outputs an open signal indicating the opening of the contacts when it is detected that contacts of the thermostat are opened.

Abstract: The lithium primary battery comprises: a positive electrode; a negative electrode including lithium or a lithium alloy; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. A surface of the negative electrode on a side of the carbon material layer has first ruggedness and adheres to a surface of the carbon material layer on a side of the negative electrode. A surface of the carbon material layer on a side of the separator has second ruggedness. The first ruggedness and the second ruggedness correspond to each other. The first ruggedness and the second ruggedness may be ruggedness formed by pressing the carbon material layer onto the surface of the negative electrode, thereby deforming the carbon material layer and the surface of the negative electrode.

Abstract: A secondary battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer having a plurality of fine pores on an anode current collector. The anode active material layer contains an anode active material and an anode binder. A change rate of a mercury intrusion into the plurality of fine pores measured by mercury penetration technique is distributed to show a peak in the pore diameter range from 30 nm to 10000 nm, both inclusive.

Abstract: In a carbon black (CB)/PTFE composite porous sheet that can be used as a gas diffusion layer in an electrochemical device in applications involving electro chemical reaction such as a polymer electrolyte fuel cell, electrolysis, gas sensor and the like, wrinkle or breakage may be produced due to its flexibility. A method is provided which makes it possible to easily handle this sheet that is difficult to handle, without giving rise to wrinkle or breakage. The present invention relates to a method for laminating the composite sheet on MEA, comprising the steps of: providing a membrane electrode assembly (MEA); providing a composite sheet comprising functional powder and polytetrafluoroethylene (PTFE); providing a release film; superimposing the composite sheet on the release film and pressing them at normal temperature; superimposing the composite sheet having the release film pressed at normal temperature thereto on MEA and hot-pressing them; and separating the release film from the composite sheet.

Abstract: A negative electrode for a lithium secondary battery, in which ?-Fe2O3 that is low in cost, has little environmental impact and has high theoretical capacity is used as an active material, maintains high adhesiveness between a current collector and an electrode layer, and can simultaneously achieve both of an improvement in the cycle characteristics and high capacity. In a negative electrode for a lithium secondary battery, which is configured of a current collector, and an electrode layer that is formed on the current collector and contains at least a negative electrode active material, a conductive assistant and a binder component, the negative electrode active material is composed of ?-Fe2O3 particles that generate a conversion electrode reaction, the binder component is a mixture of polyamide acid and partially imidized polyamide acid. The electrode layer is configured so that a concentration of the binder component decreases as distanced from the current collector.

Abstract: A metal-ligand coordination compound containing an aliphatic ligand useful as a catholyte and/or an anolyte that enables the provision of a redox flow battery having high energy efficiency and charge/discharge efficiency.

Abstract: The secondary battery according to the present invention includes an electrode (10) having: an electrode current collector (12), an electrode active material layer (14) formed on the surface of the electrode current collector (12), an electrically conductive film (16) that covers the surface of the electrode active material layer (14), and an electrical conductor part (18) for forming a direct electrical connection between the electrically conductive film (16) and the electrode current collector (12) by going around the electrode active material layer (14).