Patent application number | Description | Published |
20080197813 | METHOD FOR QUICK-CHARGING NON-AQUEOUS ELECTROLYTIC SECONDARY BATTERY AND ELECTRIC EQUIPMENT USING THE SAME - A non-aqueous electrolytic secondary battery which includes a heat-resistant layer formed by a porous protective film or the like having a resin binder and an inorganic oxide filler between its negative electrode and a positive electrode has such a characteristic that the higher the battery's temperature becomes, the smaller its internal resistance value becomes. In a CC-CV charging method as a general method for charging a secondary battery, using such a characteristic that the internal resistance value of the non-aqueous electrolytic secondary battery lowers as the battery's temperature rises, a VC-charge range where a charge is given using an optimum charging-current value at a maximum level up to which the battery's temperature does not reach an excessive temperature even if a charging current flows is provided within a CC-charge range. | 08-21-2008 |
20100156356 | METHOD OF QUICK CHARGING LITHIUM-BASED SECONDARY BATTERY AND ELECTRONIC DEVICE USING SAME - A charging current is maintained at a predetermined constant quick charging current (S | 06-24-2010 |
20100188050 | BATTERY INTERNAL SHORT-CIRCUIT DETECTION APPARATUS AND METHOD, AND BATTERY PACK - A battery internal short-circuit detection apparatus includes: a voltage detection unit for detecting a terminal voltage of the battery; a current detection unit for detecting a discharging current of the battery; a voltage drop and recovery detection unit for detecting a momentary voltage drop of the battery and a recovery from the voltage drop, in response to a result of detection performed by the voltage detection unit; and a determination unit for determining that an internal short circuit has occurred, when a maximum value of the discharging current detected by the current detection unit between the voltage drop and the recovery is equal to or lower than a threshold current. | 07-29-2010 |
20100188054 | BATTERY INTERNAL SHORT-CIRCUIT DETECTING DEVICE AND METHOD, BATTERY PACK, AND ELECTRONIC DEVICE SYSTEM - An internal short-circuit detecting device for detecting an internal short circuit of a battery being subjected to constant current charge using a constant current amount (I) has: a voltage detection unit for detecting a terminal voltage of the battery; a terminal voltage acquisition unit for acquiring a terminal voltage (V | 07-29-2010 |
20100201321 | BATTERY INTERNAL SHORT-CIRCUIT DETECTING DEVICE AND METHOD, BATTERY PACK, AND ELECTRONIC DEVICE SYSTEM - A battery internal short-circuit detecting device has: a battery temperature detection unit for detecting a battery temperature Tr; an ambient temperature detection unit for detecting an ambient temperature Te; an average heating value detection unit for detecting an average value Pav of battery heating values per predetermined first period ΔW | 08-12-2010 |
20110195284 | BATTERY MODULE AND BATTERY MODULE ASSEMBLY USING SAME - The battery module includes a plurality of battery units, a housing, a wiring board, and a lid. The battery unit is composed of one or more battery cells each having a vent mechanism. At least one surface of the housing is an open end. The housing has a plurality of storage parts partitioned by one or more partition walls. Each battery unit is stored in each storage part. The wiring board covers the open end of the housing, is disposed at the vent mechanism side of the cell, and has connection terminals connected to the battery units. The lid covers the open end of the housing and the wiring board, and has an open part. Through holes are provided on the wiring board in positions facing the battery units and in a different region from that of the connection terminals. | 08-11-2011 |
20110291619 | BATTERY POWER SOURCE DEVICE, AND BATTERY POWER SOURCE SYSTEM - A battery power source device includes a battery block configured by parallel-connecting a plurality of series-circuits each constituted of a secondary battery, and a cut-off element which is operable to be in a cut-off state where a charging and discharging path of the secondary battery is cut off; a current limit value setting section which sets a current limit value representing an upper allowable limit of an entire current value as a current value of a current flowing through the battery block; and an available battery number detecting section which detects the number of cut-off elements which are not in the cut-off state, out of the plurality of cut-off elements included in the battery block, as the available battery number. In this arrangement, the current limit value setting section sets the current limit value so that the current limit value is decreased, as the available battery number detected by the available battery number detecting section is reduced. | 12-01-2011 |
20120013340 | BATTERY MODULE - It is intended to provide a battery module having a long life by designing such that deterioration proceeds evenly among battery cells. | 01-19-2012 |
20120242290 | BATTERY POWER SUPPLY DEVICE AND BATTERY POWER SUPPLY SYSTEM - The battery power source apparatus includes a battery block formed by parallel-connecting series circuits each formed of a rechargeable battery and an interrupting device, a parallel circuit formed by parallel-connecting series circuits respectively formed of the interrupting devices and first resistors having respective one ends connected to connection points between the rechargeable batteries and the interrupting devices of the series circuits, and respective other ends connected to each other, a second resistor having one end connected to a connection point of the respective other ends, a power source unit applying voltage to a series circuit of the parallel circuit and the second resistor, a voltage divider ratio calculating unit calculating a voltage divider ratio between the parallel circuit and the second resistor, and a judging unit determining presence or absence of an activated interrupting device of the plurality of interrupting devices based on the voltage divider ratio. | 09-27-2012 |
20120276423 | BATTERY SYSTEM - A battery system includes a battery module that has a plurality of batteries which are provided with release portions each for releasing internal gas when an internal pressure is increased, and an exhaust portion which is provided with an opening portion and guides gas released from the release portions to the opening portion, a non-resettable switch element which is provided at a position where the guided gas passes in a vicinity of the opening portion, and is changed from a first state preset as one of an opened state and a closed state into a second state as the other one of the opened state and the closed state when a preset reference temperature or higher is reached, and a high-temperature abnormality determination unit which determines that the battery module has an abnormality when the switch element is in the second state. | 11-01-2012 |