Patent application number | Description | Published |
20090061271 | Fuel cell and a fuel cell system - For the purpose of efficiently discharging CO | 03-05-2009 |
20090117418 | FUEL CELL AND DRIVING METHOD FOR FUEL CELL - The present invention is a driving method of a fuel cell in which power is generated from a liquid fuel containing fuel and oxidant by a fuel cell main assembly | 05-07-2009 |
20090136802 | SOLID POLYMER FUEL CELL - A solid polymer fuel cell includes: a membrane and electrode assembly in which a solid polymer electrolyte membrane is sandwiched between a fuel electrode and an oxidant electrode; an oxidant channel which is formed on an oxidant electrode side of the membrane and electrode assembly, and supplies oxidant to the oxidant electrode; and a water-repellent membrane which is formed between the oxidant electrode and the oxidant channel, and has a vapor permeation property. Thus, the solid polymer fuel cell is provided in which the disturbance of the oxidant gas supply that is caused by the deposition and contact of the droplet can be suppressed. | 05-28-2009 |
20120040257 | Fuel Container For Fuel Cell, Fuel Cell Using The Same, And Operation Method Of Fuel Cell - An object of the present invention is to downsize a fuel cell, and to stably supply fuel to a fuel electrode. According to the present invention, the above described object is attained by providing a vaporized fuel container | 02-16-2012 |
20130168601 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, AND SECONDARY BATTERY USING THE SAME - There is provided a novel positive electrode active material for a secondary battery. A positive electrode active material for a secondary battery according to the present exemplary embodiment is represented by the following formula (I): | 07-04-2013 |
20130221269 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - A positive electrode active material for a lithium ion secondary battery having high discharge energy and capable of suppressing capacity drop with cycles and a secondary battery using the same are provided at lower cost. A positive electrode active material for a secondary battery according to a first aspect of the exemplary embodiment is represented by the following formula (I): Li | 08-29-2013 |
20130224571 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A lithium ion secondary battery including: a positive electrode including a positive electrode active material represented by the general formula: Li | 08-29-2013 |
20130224608 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY - A positive electrode active material having a charge and discharge range of 4.5 V or more with respect to lithium metal and used for a secondary battery excellent in charge and discharge characteristics and cycle characteristics is provided. The positive electrode active material B for a secondary battery according to the exemplary embodiment is obtained by subjecting a positive electrode active material A for a secondary battery having a charge and discharge range of 4.5 V or more with respect to lithium metal to coupling treatment with a coupling agent containing at least fluorine. Further, the positive electrode active material B for a secondary battery according to the exemplary embodiment has a film at least containing fluorine on at least a part of a surface of a positive electrode active material A for a secondary battery having a charge and discharge range of 4.5 V or more with respect to lithium metal. The exemplary embodiment can provide a positive electrode active material having a charge and discharge range of 4.5 V or more with respect to lithium metal and used for a secondary battery excellent in charge and discharge characteristics and cycle characteristics. | 08-29-2013 |
20130266847 | LITHIUM SECONDARY BATTERY - The object of an exemplary embodiment of the invention is to provide a lithium secondary battery which has high energy density by containing a positive electrode active substance operating at a potential of 4.5 V or higher with respect to lithium and which has excellent cycle property. An exemplary embodiment of the invention is an lithium secondary battery, which comprises a positive electrode comprising a positive electrode active substance and an electrolyte liquid comprising a nonaqueous electrolyte solvent; wherein the positive electrode active substance operates at a potential of 4.5 V or higher with respect to lithium; and wherein the nonaqueous electrolyte solvent comprises a fluorine-containing phosphate represented by a prescribed formula. | 10-10-2013 |
20130280600 | SECONDARY BATTERY - The object of an exemplary embodiment of the invention is to provide a secondary battery which contains a positive electrode active material operating at a potential of 4.5 V or higher and which has good cycle property at a high temperature. An exemplary embodiment of the invention is a secondary battery, comprising a positive electrode that can absorb and desorb lithium and an electrolyte liquid; wherein the positive electrode comprises a positive electrode active material that operates at a potential of 4.5 V or higher with respect to lithium; and wherein the electrolyte liquid comprises a fluorinated ether represented by a prescribed formula and a cyclic-type sulfonate represented by a prescribed formula. | 10-24-2013 |
20140023935 | LITHIUM SECONDARY CELL - Provided is a lithium secondary cell of 5V class having a positive electrode operating voltage of 4.5V or higher with respect to metallic lithium; the lithium secondary cell has high energy density, inhibits degradation of the electrolytic solution that comes in contact with the positive electrode and the negative electrode, and has particularly long cell life when used under high-temperature environments. The positive electrode contains, as the positive electrode active substance, a predetermined lithium-manganese oxide complex; the negative electrode contains, as the negative electrode active substance, graphite, of which surface is coated by low-crystallinity carbon; and the electrolytic solution contains one or more high-oxidation-potential solvents selected from propylene carbonate, butyl ene carbonate, 4-fluoro-1,3-dioxolan-2-one, and 4,5-difluoro-1,3-dioxolan-2-one within a range of 5 to 60 vol % of the solvent and one or two low-viscosity solvents selected from dimethyl carbonate and fluorinated cyclic ether. | 01-23-2014 |
20140138575 | ACTIVE MATERIAL FOR SECONDARY BATTERY - An active material for a secondary battery whose lifetime characteristics are improved is provided. The active material for a secondary battery includes a first active material represented by Li | 05-22-2014 |
20140302405 | LITHIUM ION SECONDARY BATTERY - An object of the exemplary embodiment is to provide a lithium ion secondary battery using a 5 V class positive electrode, in which generation of gas is reduced. The exemplary embodiment is a lithium ion secondary battery comprising at least a positive electrode and an electrolyte solution. The lithium ion secondary battery is characterized in that the positive electrode contains a positive electrode active material having an operating potential at 4.5 V or more versus lithium metal, and the electrolyte solution contains a cyano group-containing polymer. | 10-09-2014 |
20140356706 | SECONDARY BATTERY - There is provided a negative electrode for a secondary battery that can provide a secondary battery having high charge and discharge efficiency, and a high capacity retention rate in charge and discharge cycles. A negative electrode for a secondary battery according to this exemplary embodiment contains scale-like graphite, a fluorine-based resin, and an imide-based resin. A method for manufacturing a negative electrode for a secondary battery according to this exemplary embodiment includes applying a negative electrode slurry containing scale-like graphite, a fluorine-based resin, an imide-based resin, and a solvent for dissolving the fluorine-based resin and the imide-based resin to a negative electrode current collector; and heat-treating the negative electrode current collector at a temperature of 100° C. or more and 150° C. or less. | 12-04-2014 |
20140367610 | ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - An active material for a secondary battery with improved life characteristics is provided. An active material for a secondary battery according to this exemplary embodiment is an active material for a secondary battery represented by Li | 12-18-2014 |
20150064554 | LITHIUM ION SECONDARY BATTERY - The present invention relates to a positive electrode for lithium ion secondary batteries, the positive electrode comprising a positive electrode active material and a positive electrode binder, in which the positive electrode active material comprises lithium manganate having a spinel structure, and the positive electrode binder comprises at least polyvinylidene fluoride (PVDF) and a resin having sulfone linkages, and to a lithium ion secondary battery comprising the positive electrode for lithium ion secondary batteries. | 03-05-2015 |