Abstract: A lithium secondary battery has a positive electrode (1) containing a positive electrode active material having particles of lithium cobalt oxide, a negative electrode (2) containing a negative electrode active material having silicon particles, a separator interposed between the positive electrode (1) and the negative electrode (2), and a non-aqueous electrolyte. Particles of erbium hydroxide or erbium oxyhydroxide are adhered to a surface of the lithium cobalt oxide particles in a dispersed form.

Abstract: A positive electrode active material according to an aspect of the present invention for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that has a compound in contact with its surface, the compound containing a rare earth metal and silicic acid and/or boric acid. A positive electrode according to an aspect of the present invention has a positive electrode collector and a positive electrode mixture layer formed on at least one surface of the positive electrode collector. The positive electrode mixture layer contains a positive electrode active material, a binder, and a conductive agent. The positive electrode active material contains a lithium transition metal composite oxide that has a compound in contact with its surface, the compound containing a rare earth metal and silicic acid and/or boric acid.

Abstract: A positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being configured so that even if the potential of the positive electrode is set to a high potential, degradation of cycle characteristics is suppressed. A positive electrode for a nonaqueous electrolyte secondary battery, which has a positive electrode plate in which a positive electrode mixture layer containing a positive electrode active material which occludes and releases Li, a binder, and an electrically conductive agent is formed on a positive electrode collector, and in this positive electrode, a compound containing at least one element selected from W, Al, Mg, Ti, Zr, and a rare earth element is adhered to all the surfaces of at least a part of the positive electrode active material, at least a part of the binder, and at least a part of the electrically conductive agent, each of which is contained in the positive electrode mixture layer.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes a positive electrode active material particle and a compound containing a rare earth element and a carbonate, the compound having a particle size of 1 to 100 nm and being adhered to a surface of the positive electrode active material particle. The ratio of the compound relative to the positive electrode active material particle is 0.005% to 0.4% by mass on a rare earth element basis. The positive electrode active material particle is composed of a lithium transition metal oxide having a layered structure.

Abstract: The present invention has a main object to improve the thermal stability of a nonaqueous electrolyte secondary battery. A nonaqueous electrolyte secondary battery according to an aspect of the present invention includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material and a metal fluoride. The positive electrode active material contains particles of a lithium transition metal oxide. At least one portion of the surface of each of the lithium transition metal oxide particles has a rare-earth compound attached thereto. The nonaqueous electrolyte contains a fluorine-containing lithium salt. The rare-earth compound is preferably a hydroxide, an oxyhydroxide, or an oxide.

Abstract: A positive electrode for a nonaqueous electrolyte secondary battery that does not undergo a decrease in discharge capacity in low-temperature discharge during charge and discharge after the battery is left standing at high temperature in a charged state, for example. The positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode active material. The positive electrode active material includes a mixture of lithium nickel cobalt manganate and lithium cobaltate having a compound adhered to part of a surface thereof, the compound containing fluorine and at least one selected from zirconium, magnesium, titanium, aluminum, and a rare earth element; and a ratio of the lithium nickel cobalt manganate relative to a total amount of the positive electrode active material is 1% by mass or more and less than 70% by mass.

Abstract: A high-capacity non-aqueous electrolyte secondary battery capable of maintaining good cycle characteristics even in the case where large current discharge is repeated is provided. A positive electrode active material particle (32) includes a base particle (33) produced by agglomeration of primary particles (33a) made from lithium transition metal oxide containing tungsten and a rare earth compound particles (34) attached to the surface of the base particle (33). Preferably, the rare earth compound is attached to the interface at which the primary particles are in contact with each other or the vicinity of the interface.

Abstract: A computer implemented method of performing data compression includes applying, with a computing device, a hash function to a selected part of a character string to calculate a hash value; searching, using the hash value, through entries in a bucket chain having the hash value previously registered in a hash table, and finding a longest matching character string; acquiring, an index indicating that a longest matching character string cannot be found in the search through the entries and thus the search operation is wasted; and switching the hash function to a different hash function for expanding the selected part of the character string, without reconstructing the hash table, when the index exceeds a predetermined threshold.

Abstract: A flat nonaqueous electrolyte secondary battery according to an aspect of the present invention having good charge/discharge cycles can be achieved even if the charge voltage of a positive electrode is high. A flat nonaqueous electrolyte secondary battery according to an aspect of the present invention includes a positive electrode plate in which a positive electrode mix layer containing a positive electrode active material capable of reversibly storing and releasing lithium is formed, a negative electrode plate, an electrode assembly having a structure in which the positive electrode plate and the negative electrode plate are stacked with a separator therebetween, and a nonaqueous electrolyte solution. A compound of at least one metal selected from Al, Mg, Ti, Zr, W, and rare-earth elements is attached to the surface of the positive electrode active material. A pressure is applied to the flat nonaqueous electrolyte secondary battery from outside.

Abstract: A computer implemented method of performing data compression includes applying, with a computing device, a hash function to a selected part of a character string to calculate a hash value; searching, using the hash value, through entries in a bucket chain having the hash value previously registered in a hash table, and finding a longest matching character string; acquiring, an index indicating that a longest matching character string cannot be found in the search through the entries and thus the search operation is wasted; and switching the hash function to a different hash function for expanding the selected part of the character string, without reconstructing the hash table, when the index exceeds a predetermined threshold.

Abstract: [Problem] A non-aqueous electrolyte battery is provided that shows good cycle performance and good storage performance under high temperature conditions and exhibits high reliability even with a battery configuration featuring high capacity. A method of manufacturing the battery is also provided.

Abstract: A computer implemented method of performing data compression includes applying, with a computing device, a hash function to a selected part of a character string to calculate a hash value; searching, using the hash value, through entries in a bucket chain having the hash value previously registered in a hash table, and finding a longest matching character string; acquiring, an index indicating that a longest matching character string cannot be found in the search through the entries and thus the search operation is wasted; and switching the hash function to a different hash function for expanding the selected part of the character string, without reconstructing the hash table, when the index exceeds a predetermined threshold.

Abstract: A vehicle safety device installed in a hybrid electric vehicle or an electric vehicle is provided to be capable of interrupting a current supplied from a power supply to a load via a supply line. The vehicle safety device includes first interrupting mechanism adapted to set the supply line in an interrupted condition when a temperature of the load reaches a first set temperature and second interrupting mechanism adapted to set the supply line in the interrupted condition such that the supply line cannot be returned to an energized condition when the temperature of the load reaches a second set temperature that is higher than the first set temperature.

Abstract: A method, system and computer program product for optimally allocating objects in a virtual machine environment implemented on a NUMA computer system. The method includes: obtaining a node identifier; storing the node identifier in a thread; obtaining an object identifier of a lock-target object from a lock thread; writing a lock node identifier into the lock-target object; traversing an object reference graph where the object reference graph contains an object as a graph node, a reference from the first object to a second object as an edge, and a stack allocated to a thread as the root node; determining whether a move-target object contains the lock node identifier; moving the move-target object to a subarea allocated to a lock node if it contains the lock node identifier, and moving the move-target object to the destination of the current traversal target object if the lock node identifier is not found.

Abstract: In a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode, and a nonaqueous electrolyte, the positive electrode active material contains a lithium transition metal oxide having a surface to which a rare earth compound is adhered, and the nonaqueous electrolyte contains a lithium salt in which an oxalate complex functions as an anion.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes a lithium transition metal oxide containing nickel and zirconium and including secondary particles, each of which is composed of an aggregate of primary particles, and a rare earth compound deposited on and/or near interfaces between the primary particles.

Abstract: A temperature switch performs switching according to temperature of a heater. The temperature switch includes a bimetal that is deformed when the temperature of the heater reaches set temperature, a switch mechanism that is opened and closed by deformation of the bimetal, and a housing member that houses the bimetal and the switch mechanism, and that is able to conduct heat to the bimetal. The heater includes a pair of heat generation units that is adjacent to each other. The housing member includes a contact portion that is formed to project and that is inserted between the pair of heat generation units.

Abstract: The present invention aims to provide a nonaqueous electrolyte secondary battery having excellent charge discharge cycle characteristics in a high-temperature environment. The present invention relates to a nonaqueous electrolyte secondary battery which includes a positive electrode in which a positive electrode active material mixture layer is formed, a negative electrode in which a negative electrode active material mixture layer is formed, a nonaqueous electrolyte, and a separator, and in the above nonaqueous electrolyte secondary battery, on at least one surface of the positive electrode active material mixture layer and the negative electrode active material mixture layer, an inorganic particle layer containing a rare earth element compound is formed.

Abstract: To provide a nonaqueous electrolyte secondary battery excellent in high-temperature charge storage characteristics and high-temperature over-discharge storage characteristics. A nonaqueous electrolyte secondary battery of the present invention has a positive electrode including a positive electrode active material which contains a lithium transition metal oxide having a surface to which a rare earth compound is adhered, a negative electrode including a negative electrode active material which contains a graphite and a silicon oxide represented by SiOx (0.8?X?1.2), and a nonaqueous electrolyte which includes a solvent and a solute and to which a cyclic ether compound is added.

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes a positive electrode (1) containing a positive electrode active material that contains a lithium transition metal oxide having a surface to which a compound of a rare-earth element is adhered, a negative electrode (2) containing a negative electrode active material, and a nonaqueous electrolyte to which a lithium salt having a P—O bond and a P—F bond in its molecule and/or a lithium salt having a B—O bond and a B—F bond in its molecule is added.