Patent application number | Description | Published |
20080318121 | Vehicle power storage unit and vehicle - A vehicle power storage unit, has: a power storage assembly; a coolant for cooling the power storage assembly; a casing having a coolant inlet through which the coolant is filled into the casing and containing the coolant and the power storage assembly; a gas-discharge pipe through which gas produced by the power storage assembly is discharged from the casing to the outside of a passenger compartment or a trunk of the vehicle; and a first pressure-release valve which is provided at the coolant inlet and through which the pressure in the casing is released to the outside when gas is produced by the power storage assembly. | 12-25-2008 |
20090035647 | Storage equipment and vehicle - A power storage apparatus is provided which has a simple structure, allows ready installation on a vehicle, and enables prevention of an outflow of a coolant when gas is discharged. The apparatus includes an assembled battery, a coolant which cools the assembled battery, a housing container (a battery housing case and a case cover) which houses the assembled battery and the coolant, a gas discharge port formed in the case cover and provided to release the pressure inside the battery housing case to the outside when gas produced in the assembled batter is discharged, an elastic container which communicates with the gas discharge port, and a coolant solidifying agent provided to solidify the coolant flowing into the elastic container from the housing container through the gas discharge port when the gas is discharged. | 02-05-2009 |
20100062328 | POWER STORAGE APPARATUS AND COOLING SYSTEM - To provide a power storage apparatus which can achieve improved heat radiation of a power storage unit, a power storage apparatus has a power storage unit including an electrode element placed with an electrolyte layer, and a case housing the power storage unit and a cooling fluid which is used for cooling the power storage unit and is in contact with at least the electrode element. | 03-11-2010 |
20100136389 | POWER STORAGE UNIT AND VEHICLE HAVING POWER STORAGE UNIT - A battery unit is constituted of a battery assembly, coolant for cooling the battery assembly, a battery case containing the battery assembly and the coolant, an electric resistivity detector for detecting the electric resistivity of the coolant, and a battery ECU that determines whether the electric resistivity detected by the electric resistivity detector is equal to or lower than 10 | 06-03-2010 |
20100276120 | TEMPERATURE ADJUSTING MECHANISM - A temperature adjusting mechanism capable of efficiently performing temperature adjustment of a power source element is provided. A temperature adjusting mechanism adjusting a temperature of a power source element, includes a case member which houses the power source element and a first heat exchange medium in liquid form performing heat exchange with the power source element; and a guide member which is connected to the case member and forms at least a portion of a flow path in which a second heat exchange medium flows. The guide member is formed of a material having a higher thermal conductivity than a thermal conductivity of outside air which is in contact with the case member. | 11-04-2010 |
20120276440 | BATTERY PACK - A battery pack has a plurality of assembled batteries connected in parallel. Each of the assembled batteries has a plurality of cells connected electrically. A circulating current in each of the assembled batteries is calculated from an open circuit voltage of the assembled battery that varies according to the number of the cells connected in series, a value indicating a charge state of the assembled battery that varies according to the number of the cells connected in parallel, and an internal resistance of the assembled battery. The number of the cells connected in parallel and the number of the cells connected in series in each of the assembled batteries are numbers determined under the condition that the circulating current should not exceed an allowable current value for the assembled battery. | 11-01-2012 |
20120310571 | DETERIORATION ESTIMATING APPARATUS AND DETERIORATION ESTIMATING METHOD FOR ELECTRIC STORAGE ELEMENT - A deterioration estimating apparatus estimates a deterioration state of an electric storage element, a deterioration value indicating the deterioration state being in a proportional relationship with an nth root of an elapsed time (where n is a value larger than one), and the proportional relationship being changed in accordance with a deterioration condition. The apparatus includes a computing device. The computing device predicts a period for which each of the deterioration conditions occurs before the elapse of the predetermined time period. The computing device calculates a change amount of the deterioration value in each of the deterioration conditions based on a deterioration characteristic and the period of occurrence of each of the deterioration conditions, and adds the calculated change amounts sequentially by using the deterioration value provided before each addition as a reference to calculate each change amount of the deterioration value to be added. | 12-06-2012 |
20130264975 | ELECTRICALLY POWERED VEHICLE AND METHOD FOR CONTROLLING THE SAME - A converter is disposed between a first battery and a power line for transmitting power inputted to and outputted from a motor for traveling. A second battery, on the other hand, is connected to the power line with a relay being interposed therebetween. A control unit controls the relay to be turned on or off in accordance with an operating state of the motor. | 10-10-2013 |
20140055094 | BATTERY SYSTEM AND CONTROL METHOD THEREOF - The first battery is configured to be charged and discharged with a larger current than the second battery. The second battery has a higher storage capacity than the first battery. When the voltage of the second battery is lower than the voltage of the first battery, the controller allows charging of the second battery through the second relay while prohibiting charging of the first battery through the first relay until the voltage of the second battery reaches the voltage of the first battery. | 02-27-2014 |