Abstract: A battery system, capable of detecting a pore generated in an outer package film in an early stage, includes: a battery including a plurality of laminated cells arranged along a thickness direction and connected in series, and a plate arranged between a pair of the laminated cells; a first voltage sensor configured to measure a first voltage between a terminal of a reference cell belonging to the plurality of laminated cells, and the plate; a second voltage sensor configured to measure a second voltage between a terminal of the reference cell, and among the pair of laminated cells facing the plate, the laminated cell in the reference cell side; and an electronic control unit including a first obtaining unit configured to obtain the first voltage from the first voltage sensor.

Abstract: A main object of the present disclosure is to provide a determination method of a battery capable of determining a non-genuine product not basing on the weight of the battery.

Abstract: A battery system, capable of detecting a pore generated in an outer package film in an early stage, includes: a battery including a plurality of laminated cells arranged along a thickness direction and connected in series, and a plate arranged between a pair of the laminated cells; a first voltage sensor configured to measure a first voltage between a terminal of a reference cell belonging to the plurality of laminated cells, and the plate; a second voltage sensor configured to measure a second voltage between a terminal of the reference cell, and among the pair of laminated cells facing the plate, the laminated cell in the reference cell side; and an electronic control unit including a first obtaining unit configured to obtain the first voltage from the first voltage sensor.

Abstract: A battery management system includes an arithmetic processing unit that selects a replacement battery from among a plurality of candidate batteries, to replace an installed battery that is installed in equipment. The arithmetic processing unit calculates an assumed greatest current rate of each of the candidate batteries when used in the equipment, from current rate history of the installed battery and capacity of the candidate battery taking into consideration an amount of deterioration of the candidate battery. The arithmetic processing unit selects a battery of which the assumed greatest current rate of each of the candidate batteries that is calculated is no greater than a predetermined current rate, from among the candidate batteries as the replacement battery.

Abstract: When a temperature Tedge of a cell at an end of a battery pack is higher than a temperature Tcen of a cell in a pack central portion, a management server generates rebuilding information for rebuilding a battery pack such that a cell less likely to deteriorate than a cell arranged in the pack central portion is arranged at a pack end. When temperature Tcen is higher than temperature Tedge, the management server generates rebuilding information such that a cell less likely to deteriorate than a cell arranged at the pack end is arranged in the pack central portion.

Abstract: When a temperature Tedge of a cell at an end of a battery pack is higher than a temperature Tcen of a cell in a pack central portion, a management server generates rebuilding information for rebuilding a battery pack such that a cell less likely to deteriorate than a cell arranged in the pack central portion is arranged at a pack end. When temperature Tcen is higher than temperature Tedge, the management server generates rebuilding information such that a cell less likely to deteriorate than a cell arranged at the pack end is arranged in the pack central portion.

Abstract: Provided is a method of estimating a state of deterioration of a battery with higher accuracy. The method includes: calculating a difference between a temperature T1 when temperature begins to drop, and a temperature T2 when the temperature begins to rise and defining the difference as a temperature difference ?T12 if the following are satisfied concerning a battery having current collector foil and an outer casing: the temperature of the battery drops; and the rate at which the temperature changes, the range in which the temperature drops, and the range of the temperature are each a predetermined value; accumulating the number of times when a condition of the temperature belongs to any of classifications of the T1 and the ?T12; and estimating damage to the current collector foil based on respective relationships between the classifications and damage to the current collector foil.

Abstract: A controller of a battery pack air cooling system is configured to calculate a degradation amount of each target battery based on integrated temperature information of each target battery that makes up a battery pack, calculate degradation variations in the battery pack based on the degradation amount of each target battery, when it is determined that a detected battery temperature of any one of the target batteries is higher than an outside air temperature, cause an air sending device to send outside air to the battery pack, and, when it is determined that the detected battery temperature is lower than or equal to the detected outside air temperature and it is determined that the degradation variations in the battery pack are greater than or equal to a threshold, cause an air sending device to send outside air to the battery pack.

Abstract: A control device for controlling charging of a rechargeable battery, the control device including a rechargeable dummy cell, a first circuit configured to charge the battery and the dummy cell, and a second circuit configured to measure the open circuit voltage of the dummy cell. The control device is configured to: determine the open circuit voltage of the dummy cell by using the second circuit, and determine the maximum capacity increment of the battery, which is to be charged until full charging, based on the determined open circuit voltage of the dummy cell. Also, a corresponding method of controlling charging of a rechargeable battery.

Abstract: A control device for controlling discharging of a rechargeable battery, the control device being configured to: determine the voltage of the battery during discharging of the battery, stop discharging, when the determined voltage falls below a first predetermined lower voltage limit, determine the voltage of the battery after stopping discharging, determine the voltage difference between the first predetermined lower voltage limit and the determined voltage of the battery after stopping discharging, and continue discharging, when the determined voltage difference exceeds a predetermined threshold. A corresponding method controls discharging of a rechargeable battery.

Abstract: When a temperature Tedge of a cell at an end of a battery pack is higher than a temperature Tcen of a cell in a pack central portion, a management server generates rebuilding information for rebuilding a battery pack such that a cell less likely to deteriorate than a cell arranged in the pack central portion is arranged at a pack end. When temperature Tcen is higher than temperature Tedge, the management server generates rebuilding information such that a cell less likely to deteriorate than a cell arranged at the pack end is arranged in the pack central portion.

Abstract: A control device for controlling discharging of a rechargeable battery, the control device comprising a rechargeable dummy cell, a first circuit configured to discharge the battery and the dummy cell, and a second circuit configured to measure the open circuit voltage of the dummy cell. The control device is configured to: determine the open circuit voltage of the dummy cell by using the second circuit, and determine the maximum capacity decrement of the battery, which is to be discharged until full discharging, based on the determined open circuit voltage of the dummy cell. The invention also refers to a corresponding method of controlling discharging of a rechargeable battery.

Abstract: A control device for controlling charging of a non-aqueous metal air battery, the control device being configured to: determine a CO2 concentration (Cx) and an increase rate (RCO2) of CO2 concentration in the battery, charge the battery in case both the CO2 concentration (Cx) before starting charging exceeds a predetermined CO2 threshold (CT) and the increase rate of the CO2 concentration (RCO2) during charging is below a predetermined threshold value (?CT/?AhT, ?CT/?t), and stop charging when the increase rate (RCO2) exceeds the predetermined threshold value (?CT/?AhT, ?CT/?t). Also, a corresponding method of controlling charging of a rechargeable battery.

Abstract: A battery system, capable of detecting a pore generated in an outer package film in an early stage, includes: a battery including a plurality of laminated cells arranged along a thickness direction and connected in series, and a plate arranged between a pair of the laminated cells; a first voltage sensor configured to measure a first voltage between a terminal of a reference cell belonging to the plurality of laminated cells, and the plate; a second voltage sensor configured to measure a second voltage between a terminal of the reference cell, and among the pair of laminated cells facing the plate, the laminated cell in the reference cell side; and an electronic control unit including a first obtaining unit configured to obtain the first voltage from the first voltage sensor.

Abstract: A method for charging a non-aqueous metal air battery comprising: if the voltage across the battery is lower than a first threshold voltage, charging (P1) the battery by applying a constant current to the battery having a first value until reaching the first threshold voltage, if the voltage across the battery is comprised between the first threshold voltage and a second threshold voltage higher than the first threshold voltage, charging (P2) the battery by applying a constant current to the battery having a second value until reaching the second threshold voltage, the second value being lower than the first value, if the voltage across the battery is higher than the second threshold, charging (P3) the battery by applying to the battery at least one value of constant voltage.

Abstract: A controller of a battery pack air cooling system is configured to calculate a degradation amount of each target battery based on integrated temperature information of each target battery that makes up a battery pack, calculate degradation variations in the battery pack based on the degradation amount of each target battery, when it is determined that a detected battery temperature of any one of the target batteries is higher than an outside air temperature, cause an air sending device to send outside air to the battery pack, and, when it is determined that the detected battery temperature is lower than or equal to the detected outside air temperature and it is determined that the degradation variations in the battery pack are greater than or equal to a threshold, cause an air sending device to send outside air to the battery pack.

Abstract: A management server obtains information on a use history of a battery assembly used in a vehicle. The management server calculates an amount of material deterioration Dm and an amount of high-rate deterioration Dh by using the information on the use history of the battery assembly. When a ratio Dm/Dh is higher than a threshold value Th, the management server generates first assembly information indicating selection of a cell highly resistant against material deterioration and a spacer highly resistant against material deterioration (a cell A and a spacer A). When the ratio Dm/Dh is lower than the threshold value Th, the management server generates second assembly information indicating selection of a cell highly resistant against high-rate deterioration and a spacer highly resistant against high-rate deterioration (a cell B and a spacer B).

Abstract: A control device for controlling charging of a rechargeable battery, the control device being configured to: determine the voltage of the battery during charging of the battery, stop charging, when the determined voltage exceeds a predetermined upper voltage limit, determine the voltage of the battery after stopping charging, determine the voltage difference between the predetermined upper voltage limit and the determined voltage of the battery after stopping charging, and continue charging, when the determined voltage difference exceeds a predetermined threshold. A corresponding method controls charging of a rechargeable battery.

Abstract: A system for determining a battery condition includes a temperature sensor configured to provide a temperature value associated with the battery, an impedance sensor configured to provide impedance information associated with the battery, and a controller. The controller is configured to determine a threshold impedance associated with a separator membrane of the battery based on an initial impedance of the separator membrane as measured by the impedance sensor and a battery temperature as measured by the temperature sensor, monitor, during operation of the battery, an actual impedance associated with the separator membrane of the battery based on the impedance information and the battery temperature, permit current flow to and from the battery when actual impedance is greater than the threshold impedance, and prevent current flow to and from the battery when the actual impedance is less than or equal to the threshold impedance.

Abstract: A discharging control system for a battery includes temperature sensing means configured to provide a temperature value associated with the battery, voltage sensing means configured to provide a voltage value associated with the battery, pressure sensing means configured to provide a pressure value associated with an internal portion of the battery, and a controller.