Patent application number | Description | Published |
20140186668 | FIRE SUPPRESSION APPARATUS FOR A BATTERY PACK - Disclosed is an apparatus capable of suppressing a fire of a battery pack when a fire occurs at the battery pack. The fire suppression apparatus includes a fire detection sensor for detecting the probability of fire occurrence at a battery pack, a fire-extinguishing chemical tank containing a fire-extinguishing chemical in an inner space therein, and a control unit for allowing the fire-extinguishing chemical of the fire-extinguishing chemical tank into the battery pack when fire occurrence is detected by the fire detection sensor. | 07-03-2014 |
20150024255 | SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - The present disclosure discloses a secondary battery and a manufacturing method thereof. According to the present disclosure, the influence of heat generated at a welding spot between an electrode tab and an electrode lead on the performance of a secondary battery may be minimized. Accordingly, in the design of a large capacity secondary battery, the battery performance may be close to an ideal condition. | 01-22-2015 |
20150112661 | OVERCURRENT SIMULATION METHOD WHEN NAIL PENETRATES SECONDARY BATTERY AND RECORDING MEDIUM STORING THE PROGRAM - Disclosed is an overcurrent simulation method when a nail penetrates a secondary battery and a recording medium storing the program. The overcurrent simulation method according to the present disclosure constructs a safety device and a secondary battery equivalent circuit, and produces a nail penetration effect by changing a resistance value. In this instance, various current simulations may be obtained by changing a first metal sheet and a second metal sheet included in the safety device, and a resistance value limiting an overcurrent may be calculated. | 04-23-2015 |
20150123621 | CHARGING METHOD OF SECONDARY BATTERY - Disclosed herein is a charging method of a secondary battery including a first charging step of charging the secondary battery at a first C-rate from an initial charge voltage to a first charge voltage and a second charging step of charging the secondary battery to a target voltage while gradually decreasing a C-rate within a range not exceeding the first C-rate after the voltage of the secondary battery reached the first charge voltage. Consequently, it is possible to prevent deterioration of the battery, thereby improving lifespan characteristics of the battery. | 05-07-2015 |
20150145525 | OVERCURRENT SIMULATION METHOD WHEN NAIL PENETRATES SECONDARY BATTERY AND RECORDING MEDIUM STORING THE PROGRAM - Disclosed is an overcurrent simulation method when a nail penetrates a secondary battery and a recording medium storing the program. The overcurrent simulation method according to the present disclosure constructs a safety device and a secondary battery equivalent circuit, and produces a nail penetration effect by changing a resistance value. In this instance, various current simulations may be obtained by changing a first metal sheet and a second metal sheet included in the safety device, and a resistance value limiting an overcurrent may be calculated. | 05-28-2015 |
20150303537 | HEAT SINK HAVING TWO OR MORE SEPARATED CHANNELS ARRANGED VERTICALLY WITH COMMON INLET AND COMMON OUTLET - The present disclosure discloses a heat sink with two or more separated channels. The heat sink according to the present disclosure includes a cooling channel through which a refrigerant passes to cool a secondary battery by an indirect cooling method, the secondary battery including a cell assembly in which at least two unit cells are stacked, each unit cell including a positive electrode plate, a separator, and a negative electrode plate, and a plurality of positive and negative electrode tabs protruding from the positive and negative electrode plates of each unit cell is electrically connected to positive and negative leads, respectively, wherein the cooling channel has two or more separated channels, the two or more separated channels have branches inside to allow a coolant to flow in each of the channels, and the branches are vertically arranged. According to the present disclosure, provision of a heat sink having a uniform cooling effect is enabled. | 10-22-2015 |
20150318587 | HEAT SINK WITH TWO OR MORE SEPARATED CHANNELS - The present disclosure discloses a heat sink with two or more separated channels. The heat sink according to the present disclosure includes a cooling channel through which a refrigerant passes to cool a secondary battery by an indirect cooling method, the secondary battery including a cell assembly in which at least two unit cells are stacked, each unit cell including a positive electrode plate, a separator, and a negative electrode plate, and a plurality of positive and negative electrode tabs protruding from the positive and negative electrode plates of each unit cell is electrically connected to positive and negative leads, respectively, wherein the cooling channel has two or more separated channels. According to the present disclosure, provision of a cooling fin having a uniform cooling effect is enabled. | 11-05-2015 |
20150325889 | HEAT SINK WITH TWO OR MORE SEPARATED CHANNELS INCLUDING INSULATION MATERIAL - The present disclosure discloses a heat sink with two or more separated channels. The heat sink according to the present disclosure includes a cooling channel through which a refrigerant passes to cool a secondary battery by an indirect cooling method, the secondary battery including a cell assembly in which at least two unit cells are stacked, each unit cell including a positive electrode plate, a separator, and a negative electrode plate, and a plurality of positive and negative electrode tabs protruding from the positive and negative electrode plates of each unit cell is electrically connected to positive and negative leads, respectively, wherein the cooling channel has two or more separated channels, and an insulation material is interposed between at least one of the two or more separated channels and a heat source. According to the present disclosure, provision of a heat sink having a uniform cooling effect is enabled. | 11-12-2015 |