WO2014104280A1 - Procédé de commande et dispositif de commande pour batterie secondaire - Google Patents

Procédé de commande et dispositif de commande pour batterie secondaire Download PDF

Info

Publication number
WO2014104280A1
WO2014104280A1 PCT/JP2013/085062 JP2013085062W WO2014104280A1 WO 2014104280 A1 WO2014104280 A1 WO 2014104280A1 JP 2013085062 W JP2013085062 W JP 2013085062W WO 2014104280 A1 WO2014104280 A1 WO 2014104280A1
Authority
WO
WIPO (PCT)
Prior art keywords
secondary battery
temperature
charging rate
control device
rate
Prior art date
Application number
PCT/JP2013/085062
Other languages
English (en)
Japanese (ja)
Inventor
三好　学
合田　信弘
友哉 佐藤
浩平 間瀬
友邦 阿部
晃子 島
希世奈 吉田
昭裕 佐伯
Original Assignee
株式会社 豊田自動織機
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 豊田自動織機 filed Critical 株式会社 豊田自動織機
Priority to JP2014554585A priority Critical patent/JPWO2014104280A1/ja
Publication of WO2014104280A1 publication Critical patent/WO2014104280A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a control method and a control device for a secondary battery, and more particularly to a control method and a control device for a secondary battery including a negative electrode that performs an alloying reaction.
  • Secondary batteries are widely used as a power source because they can be recharged and used repeatedly.
  • the discharge voltage of the lithium ion secondary battery is higher than that of the nickel-hydrogen secondary battery or the nickel-cadmium secondary battery.
  • a lithium ion oxide such as LiCoO 2 , LiMn 2 O 4 , or LiNiO 2 is used for the positive electrode, and a carbon material such as graphite is used for the negative electrode.
  • a negative electrode that undergoes an alloying reaction has been studied for higher capacity.
  • a negative electrode made of a carbon material discharge is performed when lithium ions enter the negative electrode by intercalation.
  • a negative electrode that performs an alloying reaction lithium ions form an alloy with the negative electrode.
  • the negative electrode that performs the alloying reaction may be referred to as an alloy-based negative electrode.
  • Si-based negative electrodes have been studied as high-capacity alloy-based negative electrodes.
  • the SiO negative electrode is a Si-based negative electrode and has better cycle characteristics than that of the Si negative electrode.
  • SiO forming the SiO negative electrode is a mixture of Si and SiO 2 formed by disproportionation of SiO. To be precise, not SiO (silicon monoxide) alone, but SiO x (0 ⁇ x ⁇ 2).
  • the battery management device of Patent Document 1 includes a secondary battery that is a drive source of an electric vehicle, and a motor that is driven by the secondary battery. This battery management device controls the secondary battery so that the charging rate of the secondary battery becomes a predetermined target charging rate while repeating charging and discharging of the secondary battery.
  • the battery management device includes battery temperature detection means for detecting the temperature of the secondary battery (battery temperature), and decreases the target charging rate as the battery temperature increases.
  • the battery management device decreases the upper limit charging rate as the battery temperature increases.
  • Patent Document 1 when the battery temperature detecting means detects that the temperature of the secondary battery is increased, the battery management device decreases the target charging rate or the upper limit charging rate of the secondary battery. Therefore, the secondary battery tends to discharge, and the average charging rate decreases, so the life characteristics of the secondary battery are improved. On the other hand, although the average charging rate is lowered, the battery temperature is high, so that the output density is large and the necessary high output can be ensured.
  • Patent Document 1 when charging / discharging of the secondary battery is controlled so that the charging rate is within the range of the target charging rate, it is assumed that the discharging is performed by driving a motor. Therefore, after charging the secondary battery, if the charging rate exceeds the target charging rate due to the temperature of the secondary battery rising due to the influence of the environmental temperature while the electric vehicle is stopped, or the temperature of the secondary battery increases or decreases When the charging rate deviates from the predetermined upper and lower limits, the secondary battery is discharged under an inappropriate condition for a while from the start of the motor driving. As a result, the deterioration of the secondary battery is promoted.
  • An object of the present invention is to provide a negative electrode for performing an alloying reaction and a lithium transition metal oxide positive electrode, and the deterioration of the negative electrode during use of a secondary battery that outputs a voltage of 4.5 V when the charging rate is maximum.
  • the present invention provides a control method and a control device for a secondary battery that can suppress the battery.
  • a secondary battery control method that solves the above problem includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode, and outputs a voltage of 4.5 V in a state where the charging rate is maximum.
  • the secondary battery is controlled by changing the maximum value and the minimum value of the charge rate so that the charge rate of the secondary battery does not deviate from a preset range according to the temperature of the secondary battery.
  • the maximum value of the charging rate is changed to 90%.
  • the “negative electrode that performs an alloying reaction” means that lithium ions do not discharge when lithium ions enter into the negative electrode by intercalation like a negative electrode made of a carbon material, but forms an alloy with lithium ions. Means negative electrode.
  • charging and discharging are controlled by changing the maximum value and the minimum value of the charging rate (SOC) so that the charging rate of the secondary battery does not deviate from the range set in advance according to the temperature of the secondary battery.
  • SOC charging rate
  • charging / discharging is controlled so that the charging rate does not exceed 90%.
  • Examples of the method for performing control so that the charging rate of the secondary battery does not exceed 90% include, for example, a method for adjusting the temperature of the secondary battery and a load for discharging without adjusting the temperature of the secondary battery. There are a method of using the power of the battery depending on the load, and a method of using the temperature control and the power usage of the load in combination.
  • the minimum charging rate is changed to 10%, and the maximum charging rate at the normal temperature is changed.
  • the value is preferably 100%. According to this configuration, the charge / discharge amount of the secondary battery is larger than the case where control is performed so that the charging rate (SOC) does not exceed 90% regardless of whether the temperature of the secondary battery is normal temperature or high temperature.
  • SOC charging rate
  • the high temperature is 55 ° C. or higher, and the minimum value of the charging rate at the high temperature is preferably 0%. According to this configuration, the charge / discharge amount of the secondary battery becomes larger at high temperatures than when used at a charging rate of 10% or more as in the normal temperature, and the secondary battery is used as a power source for the vehicle. In this case, the travel distance of the vehicle can be increased.
  • the lithium transition metal oxide positive electrode is preferably composed mainly of a mixture of lithium nickelate, lithium cobaltate and lithium manganate. According to this configuration, an appropriate lithium transition metal oxide positive electrode can be obtained by adjusting the mixing ratio of a lithium transition metal oxide that has a proven track record as a transition metal oxide constituting the positive electrode of a lithium ion secondary battery. .
  • the secondary battery control device that solves the above problems is a secondary battery control device that includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode.
  • the control device includes a battery temperature detection unit that detects a temperature of the secondary battery, a charge rate detection unit that detects a charge rate of the secondary battery, and detection results of the battery temperature detection unit and the charge rate detection unit.
  • a control unit that controls charging / discharging of the secondary battery by changing a maximum value and a minimum value of the charging rate so that the charging rate of the secondary battery does not deviate from a preset range according to temperature based on With.
  • the control unit changes the minimum value of the charging rate to 10%, and the temperature of the secondary battery is When it is in the second temperature range higher than the first temperature range, the maximum value of the charging rate is changed to 90%.
  • the temperature of the secondary battery is detected by the battery temperature detecting unit, and the charging rate of the secondary battery is detected by the charging rate detecting unit.
  • the control unit changes the maximum value and the minimum value of the charging rate so that the charging rate of the secondary battery does not deviate from a preset range according to the temperature based on the detection results of the battery temperature detecting unit and the charging rate detecting unit.
  • Charge / discharge is controlled, and when the temperature of the secondary battery is normal temperature, the charge / discharge is controlled so that the charge rate is 10% or more.
  • the charge rate is Charge / discharge is controlled so as not to exceed 90%.
  • Examples of the method of controlling the charging rate so as not to exceed 90% include the method of controlling the temperature adjusting unit that adjusts the temperature of the secondary battery and the discharging circuit that supplies power to the discharging load. There are a method of performing and a method of using both together. Therefore, it is possible to suppress the deterioration of the negative electrode during use of the secondary battery including the negative electrode that performs the alloying reaction and the lithium transition metal oxide positive electrode.
  • the hybrid type vehicle includes an internal combustion engine (hereinafter referred to as an engine) 11, a generator 12, a secondary battery module 13 as a battery, and a travel motor 14.
  • the secondary battery module 13 is composed of a plurality of lithium ion secondary batteries connected to each other.
  • Each lithium ion secondary battery includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode, and outputs a voltage of 4.5 V in a state where the charging rate is maximum.
  • the “negative electrode that performs an alloying reaction” means a negative electrode that forms an alloy with lithium ions.
  • the generator 12 and the traveling motor 14 are connected to the secondary battery module 13 via a power control unit (PCU) 15.
  • the PCU 15 includes an inverter, a boost converter, and a control device.
  • the PCU 15 charges the secondary battery module 13 with the electric power generated by the generator 12 or supplies it to the traveling motor 14 based on a command from the ECU 16 that controls the entire vehicle.
  • the ECU 16 is electrically connected to the engine 11, the PCU 15, and the secondary battery control device 17.
  • the ECU 16 controls the throttle of the engine 11 so as to make the output of the engine 11 as constant as possible, and also controls power supply to the travel motor 14 and charge / discharge of the secondary battery module 13 via the PCU 15.
  • the ECU 16 sends a command signal to the PCU 15 so as to supply electric power required by the traveling motor 14.
  • the electric power generated by the generator 12 is preferentially supplied, and the insufficient electric power is supplied from the secondary battery module 13.
  • the ECU 16 sends a charge signal to the PCU 15 to send power to the secondary battery module 13.
  • the ECU 16 sends a discharge signal to the PCU 15 to take out the power from the secondary battery module 13.
  • the secondary battery control device 17 includes a temperature of the secondary battery module 13, that is, a battery temperature detection means (battery temperature detection unit) 18 for detecting the temperature of the secondary battery, a charging rate (SOC) of the secondary battery module 13, That is, a range in which the charging rate of the secondary battery is set in advance according to the temperature of the secondary battery based on the detection result with the charging rate detecting means (charging rate detecting unit) 19 for detecting the charging rate of the secondary battery.
  • Control means control unit for controlling charging / discharging of the secondary battery by changing the maximum value and the minimum value of the charging rate so as not to deviate.
  • the secondary battery control device 17 charges and discharges the secondary battery so that the charging rate does not exceed 90%, that is, the maximum value of the charging rate is 90%.
  • a method of adjusting the temperature of the secondary battery is used.
  • the secondary battery may be provided with a discharge load and a discharge circuit for supplying power to the load, and the power of the battery may be used by the load.
  • the method of adjusting the temperature of the secondary battery and the use of power by the load may be used in combination.
  • the secondary battery module 13 includes a battery temperature detection unit 18, a voltage detection unit (voltage detection unit) 19 a that detects the voltage of the secondary battery module 13, and a current flow into and out of the secondary battery module 13.
  • Current detection means (current detection unit) 19b are examples of the secondary battery module 13 in the secondary battery module 13 in the secondary battery module 13 in the secondary battery module 13 in the secondary battery module 13 in the secondary battery module 13 in the secondary battery module 13 in the secondary battery temperature detection unit 18.
  • a voltage detection unit voltage detection unit (voltage detection unit) 19 a that detects the voltage of the secondary battery module 13, and a current flow into and out of the secondary battery module 13.
  • Current detection means (current detection unit) 19b Current detection means
  • the secondary battery control device 17 stores a voltage-charge rate comparison table in a memory.
  • the secondary battery control device 17 determines the initial value of the charging rate by reading the charging rate corresponding to the open circuit voltage Vo of the secondary battery module 13 detected by the voltage detecting means 19a from the voltage-charge rate comparison table. .
  • a plurality of types of voltage-charge rate comparison tables corresponding to the temperature of the secondary battery module 13 are prepared so as not to cause an error due to the temperature of the secondary battery module 13.
  • the secondary battery control device 17 uses a table corresponding to the temperature of the secondary battery module 13 detected by the battery temperature detection means 18.
  • the voltage detection means 19a detects the voltage of the secondary battery module 13, and the current detection means 19b detects the flow of current into and out of the secondary battery module 13.
  • the charging rate of the secondary battery module 13 that changes as the vehicle travels is based on the voltage of the secondary battery module 13 and the flow of power to and from the secondary battery module 13. It is obtained by adjusting the capacity of the secondary battery calculated from the initial value of the rate.
  • the voltage detection means 19 a and the current detection means 19 b constitute the charging rate detection means 19.
  • the secondary battery module 13 includes a thermoelectric conversion element as the temperature adjusting means (temperature adjusting unit) 20.
  • the thermoelectric conversion element includes a thermoelectric conversion element having a surface that exhibits an action that is in conflict with the polarity of energization, that is, a heat dissipation action or an endothermic action.
  • the power of the secondary battery module 13 is supplied to the temperature adjusting means 20 via the PCU 15.
  • the temperature adjusting means 20 can be used for cooling and heating the secondary battery module 13 by changing the energization direction.
  • the ECU 16 obtains information on the temperature and charging rate of the secondary battery module 13 from the secondary battery control device 17, and the charging rate of the secondary battery module 13 (secondary battery) is preset according to the temperature of the secondary battery.
  • Control means for controlling charging / discharging of the secondary battery is configured by changing the maximum value and the minimum value of the charging rate so as not to deviate from the specified range.
  • the ECU 16 charges the secondary battery module 13 via the PCU 15 so that the charging rate does not exceed 90% when the temperature of the secondary battery is high, that is, the maximum value of the charging rate is 90%. It controls the discharge and the power supply to the traveling motor 14 and the temperature adjusting means 20.
  • a control unit is configured to control charging / discharging of the secondary battery by changing the maximum value and the minimum value of the charging rate so as not to deviate from the preset range.
  • the secondary battery control device 17 charges and discharges the secondary battery so that the charging rate does not exceed 90%, that is, the maximum value of the charging rate is 90%. To control.
  • the structure of the positive electrode of the lithium ion secondary battery which comprises the secondary battery module 13, a negative electrode, and electrolyte solution is as follows.
  • Positive electrode LiNi 0.5 Co 0.2 Mn 0.3 O 2 / AB / PVdF (94/3/3)
  • Negative electrode SiO / graphite / AB / binder (32/50/8/10)
  • Electrolyte 1M LiPF 6 FEC / EC / EMC / DMC (4/26/30/40)
  • Positive electrode 12 mg / cm 2
  • Negative electrode 3.3 mg / cm 2
  • AB is acetylene black
  • PVdF polyvinylidene fluoride.
  • charging and discharging are controlled by changing the maximum and minimum values of the charging rate so that the charging rate of the secondary battery module 13 (secondary battery) does not deviate from a preset range according to the temperature of the secondary battery.
  • the basis for controlling charging / discharging of the secondary battery so that the charging rate does not exceed 90% when the temperature of the secondary battery is high will be described.
  • the secondary battery When the temperature of the secondary battery was 25 ° C. and 60 ° C., the secondary battery was charged / discharged by 1C constant current charging and constant current discharging. Charging / discharging was repeated under the four conditions A to D shown in FIG. 2, and the capacity retention rate after discharge in each cycle was determined. The relationship between the discharge capacity retention rate and the number of cycles when the temperature of the secondary battery is 25 ° C. and 60 ° C. is shown in FIGS. 3 and 4, respectively.
  • condition A indicates that charging / discharging of the secondary battery was performed at a charging rate (SOC) in the range of 0 to 100% and a voltage in the range of 2.50 to 4.50V.
  • condition B corresponds to a charging rate in the range of 10 to 90% and a voltage in the range of 3.26 to 4.32V.
  • Condition C corresponds to a charging rate in the range of 10 to 100% and a voltage in the range of 3.26 to 4.50V.
  • Condition D corresponds to a charging rate in the range of 0 to 90% and a voltage in the range of 2.50 to 4.32V.
  • 3 and 4 the relationship between the discharge capacity maintenance rate and the number of cycles is indicated by line types corresponding to the conditions A, B, C, and D in FIG.
  • the discharge capacity retention rate (vertical axis) is shown with respect to the square root (horizontal axis) of the cycle number. This is based on an empirical rule that the relationship between the discharge capacity retention rate and the square root of the number of cycles is almost linear.
  • the secondary battery is discharged at 60 ° C. until the SOC becomes less than 10% and the use of the secondary battery is stopped as it is, the deterioration of the secondary battery is accelerated when the temperature of the secondary battery is lowered.
  • the SOC becomes less than 10%, it may be displayed that the secondary battery needs to be charged.
  • the ECU 16 obtains information on the temperature and charging rate of the secondary battery module 13 from the secondary battery control device 17, and the charging rate of the secondary battery of the secondary battery module 13 is preset according to the temperature of the secondary battery.
  • the charging and discharging are controlled by changing the maximum value and the minimum value of the charging rate so as not to deviate from the specified range.
  • the ECU 16 charges and discharges the secondary battery module 13 and supplies power to the traveling motor 14 and the temperature adjusting means 20 via the PCU 15 so that the charging rate does not exceed 90%. To control.
  • the ECU 16 changes the upper limit, the lower limit, or both of the charge rate according to the temperature of the secondary battery module 13 as shown in FIG.
  • ⁇ SOC charge / discharge amount
  • normal temperature means 20 ° C. or higher and 30 ° C. or lower (that is, 25 ° C. ⁇ 5 ° C.).
  • the high temperature is, for example, 60 ° C.
  • the ECU 16 uses the power of the secondary battery module 13.
  • a control command is sent to the PCU 15 to be used by the temperature adjusting means 20.
  • the secondary battery includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode, and outputs a voltage of 4.5 V at a maximum charging rate (SOC).
  • SOC maximum charging rate
  • the secondary battery is changed by changing the maximum and minimum values of the charging rate so that the charging rate of the secondary battery does not deviate from a preset range according to the temperature of the secondary battery. Controls charging and discharging of When the temperature of the secondary battery is high, charging / discharging is controlled so that the maximum value of the charging rate is 90%. Therefore, deterioration of the negative electrode during use of the secondary battery can be suppressed.
  • High temperature is 55 ° C or higher, and the minimum value of the charging rate at high temperature is 0%. Therefore, the amount of charge / discharge of the secondary battery can be increased even at a high temperature as compared with the case where the secondary battery is used at a charging rate of 10% or more as at the normal temperature. Therefore, when the secondary battery is used as a power source for the vehicle, the travel distance of the vehicle can be increased.
  • the lithium transition metal oxide positive electrode of the secondary battery is mainly composed of a mixture of lithium nickelate, lithium cobaltate, and lithium manganate.
  • the lithium transition metal oxide positive electrode of the secondary battery mainly includes a mixture of lithium nickelate, lithium cobaltate, and lithium manganate.
  • an appropriate lithium transition metal oxide positive electrode can be obtained by adjusting the ratio of a lithium transition metal oxide that has a proven record as a transition metal oxide constituting the positive electrode of a lithium ion secondary battery.
  • the control device for the secondary battery includes a battery temperature detecting means 18 for detecting the temperature of the secondary battery (secondary battery module 13), a charging rate detecting means 19 for detecting the charging rate of the secondary battery, and a battery. Based on the detection results of the temperature detecting means 18 and the charging rate detecting means 19, the maximum and minimum charging rates are set so that the charging rate of the secondary battery does not deviate from a preset range according to the temperature of the secondary battery.
  • Control means PCU15, ECU16, secondary battery control device 17 for controlling charging / discharging of the secondary battery by changing the value.
  • the minimum value of the charging rate is 10% or more, and the temperature of the secondary battery is higher than the first temperature range.
  • the temperature range for example, high temperature
  • charging / discharging is controlled so that the maximum value of the charging rate is 90%. Therefore, by performing the secondary battery control method shown in the above effect (1), it is possible to suppress deterioration of the negative electrode during use of the secondary battery.
  • the secondary battery module 13 includes a thermoelectric conversion element as the temperature adjusting means 20.
  • the temperature adjusting means 20 is supplied with power from the secondary battery module 13 via the PCU 15. Therefore, in the state where the secondary battery module 13 is charged to the target charging rate, when the temperature of the secondary battery module 13 is going to rise due to an increase in the environmental temperature or the like, for example, when the temperature of the secondary battery becomes high
  • the power of the secondary battery module 13 is consumed by driving the temperature adjusting means 20.
  • the charging rate of the secondary battery module 13 can be reduced, it is possible to efficiently prevent the charging rate of the secondary battery module 13 from exceeding the upper limit of the charging rate at the temperature. Moreover, this can reduce the temperature of the secondary battery module 13. Therefore, the time required for reducing the charging rate to the appropriate charging rate is shorter than that in the case where only one of temperature adjustment (temperature reduction) and use of the power of the secondary battery is performed.
  • ⁇ Charge / discharge is controlled by changing the maximum and minimum values of the charging rate so as not to deviate from the preset range according to the temperature of the secondary battery, and charging is performed when the temperature of the secondary battery is high.
  • Charge / discharge may be controlled so that the rate does not exceed 90%, and ⁇ SOC (charge / discharge amount) does not need to be constant. Further, the SOC range may be changed according to the temperature. For example, when the temperature of the secondary battery is in the temperature range of 25 ° C. ⁇ 5 ° C.
  • the minimum value of the charging rate at high temperature may be 10%, similar to that at room temperature. In this case, in a state where the secondary battery is discharged to a state close to the minimum value of the charging rate at a high temperature, and even when the temperature of the usage environment is below room temperature, the secondary battery is likely to deteriorate. Driving can be avoided.
  • the secondary battery module 13 may exceed the upper limit according to the temperature of the secondary battery module 13 while the travel motor 14 driven by the secondary battery module 13 is stopped, the secondary battery module 13 The charging rate may be lowered by consuming electric power by a load.
  • the secondary battery module 13 Electric power may be supplied to the capacitor and stored in the capacitor.
  • the energy of the capacitor may be returned to the secondary battery module 13 as appropriate.
  • a secondary battery constituting the secondary battery module 13 includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode, and may output a voltage of 4.5 V at the maximum charging rate.
  • the configurations of the positive electrode, the negative electrode, and the electrolytic solution of the secondary battery need not be as described in the above embodiment.
  • the mixing ratio of the positive electrode active material may be slightly changed, the ratio of SiO and graphite of the negative electrode may be slightly changed, or the composition ratio of the electrolytic solution may be slightly changed.
  • the material for the negative electrode is not limited to SiO, and other alloy-based negative electrode materials such as tin (Sn) may be used.
  • the vehicle on which the secondary battery module 13 is mounted is not limited to a general vehicle provided with the travel motor 14, but may be an industrial vehicle such as a forklift or an excavator loader. Further, the vehicle is not limited to a vehicle that requires a driver, and may be an automatic guided vehicle.
  • the vehicle on which the secondary battery module 13 is mounted is not limited to a hybrid type vehicle provided with the traveling motor 14 but may be an electric vehicle.
  • the control method of the secondary battery is not limited to the method of controlling the secondary battery (secondary battery module 13) mounted on the vehicle.
  • the present invention may be applied to control of a secondary battery (secondary battery module 13) as a power source used in a factory or home.
  • the control method for the secondary battery may be applied when a charged secondary battery is stored.
  • the following technical idea (invention) can be understood from the embodiment.
  • a control device for a secondary battery wherein the secondary battery includes a negative electrode that performs an alloying reaction and a lithium transition metal oxide positive electrode, and the control device has a charge rate of the secondary battery.
  • the control device has a charge rate of the secondary battery.
  • the secondary battery further includes a load for using the power of the secondary battery
  • the control device includes the secondary battery.
  • the load is a thermoelectric conversion element.
  • the secondary battery power is reduced by using the power of the secondary battery in the thermoelectric conversion element, and the temperature of the secondary battery is lowered.
  • the time required to reduce the charging rate of the secondary battery to the appropriate charging rate is lower than when either the temperature of the secondary battery is lowered or the power of the secondary battery is used. Shorter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne une batterie secondaire, dotée d'une électrode négative qui subit une réaction d'alliage et d'une électrode positive constituée à partir d'oxyde de métal de transition au lithium et qui produit une tension de 4,5 V lorsque l'état de charge est au maximum. L'invention vise à supprimer la détérioration de l'électrode négative pendant l'utilisation de la batterie secondaire. Un dispositif de commande destiné à une batterie secondaire comprend : une partie de détection de température de batterie, qui détecte la température de la batterie secondaire; une partie de détection d'état de charge, qui détecte l'état de charge de la batterie secondaire; et une partie de commande qui commande la charge et la décharge de la batterie secondaire, sur la base des résultats de détection de la partie de détection de température de batterie et de la partie de détection d'état de charge, par la modification d'une valeur maximum et d'une valeur minimum d'état de charge, de sorte que l'état de charge de la batterie secondaire ne dévie pas d'une plage prédéfinie conformément à la température de la batterie secondaire, ladite partie de commande modifiant la valeur minimum de l'état de charge sur 10 % lorsque la température de la batterie secondaire se trouve au sein d'une plage de températures ordinaires et modifiant la valeur maximum de l'état de charge sur 90 % lorsque la température de la batterie secondaire est élevée.
PCT/JP2013/085062 2012-12-27 2013-12-27 Procédé de commande et dispositif de commande pour batterie secondaire WO2014104280A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014554585A JPWO2014104280A1 (ja) 2012-12-27 2013-12-27 二次電池の制御方法及び制御装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-284417 2012-12-27
JP2012284417 2012-12-27

Publications (1)

Publication Number Publication Date
WO2014104280A1 true WO2014104280A1 (fr) 2014-07-03

Family

ID=51021351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/085062 WO2014104280A1 (fr) 2012-12-27 2013-12-27 Procédé de commande et dispositif de commande pour batterie secondaire

Country Status (2)

Country Link
JP (1) JPWO2014104280A1 (fr)
WO (1) WO2014104280A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018113773A (ja) * 2017-01-11 2018-07-19 トヨタ自動車株式会社 太陽光発電システム
CN109546248A (zh) * 2018-11-30 2019-03-29 合肥国轩高科动力能源有限公司 一种锂离子电池充电策略的优化方法
CN114503324A (zh) * 2019-10-25 2022-05-13 株式会社村田制作所 蓄电装置及充放电控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11329516A (ja) * 1998-05-14 1999-11-30 Nissan Motor Co Ltd 電池の昇温装置
JP2001190001A (ja) * 1999-12-28 2001-07-10 Sanyo Electric Co Ltd 電気自動車のバッテリー制御装置
JP2007026982A (ja) * 2005-07-20 2007-02-01 Matsushita Electric Ind Co Ltd 固体電池およびそれを有する電池搭載型集積回路装置
JP2008010295A (ja) * 2006-06-29 2008-01-17 Hokuriku Electric Power Co Inc:The 二次電池の保温方法及び保温装置
JP2010028963A (ja) * 2008-07-17 2010-02-04 Honda Motor Co Ltd 電気自動車システム
JP2011109824A (ja) * 2009-11-18 2011-06-02 Sharp Corp 充電制御方法、充電制御コンピュータプログラム、充電制御装置、２次電池システム、２次電池電力源、および、電池応用装置
JP2012243672A (ja) * 2011-05-23 2012-12-10 Nec Corp リチウムイオン二次電池

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102473982A (zh) * 2010-05-17 2012-05-23 松下电器产业株式会社 锂离子二次电池系统及电池包

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11329516A (ja) * 1998-05-14 1999-11-30 Nissan Motor Co Ltd 電池の昇温装置
JP2001190001A (ja) * 1999-12-28 2001-07-10 Sanyo Electric Co Ltd 電気自動車のバッテリー制御装置
JP2007026982A (ja) * 2005-07-20 2007-02-01 Matsushita Electric Ind Co Ltd 固体電池およびそれを有する電池搭載型集積回路装置
JP2008010295A (ja) * 2006-06-29 2008-01-17 Hokuriku Electric Power Co Inc:The 二次電池の保温方法及び保温装置
JP2010028963A (ja) * 2008-07-17 2010-02-04 Honda Motor Co Ltd 電気自動車システム
JP2011109824A (ja) * 2009-11-18 2011-06-02 Sharp Corp 充電制御方法、充電制御コンピュータプログラム、充電制御装置、２次電池システム、２次電池電力源、および、電池応用装置
JP2012243672A (ja) * 2011-05-23 2012-12-10 Nec Corp リチウムイオン二次電池

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018113773A (ja) * 2017-01-11 2018-07-19 トヨタ自動車株式会社 太陽光発電システム
CN109546248A (zh) * 2018-11-30 2019-03-29 合肥国轩高科动力能源有限公司 一种锂离子电池充电策略的优化方法
CN114503324A (zh) * 2019-10-25 2022-05-13 株式会社村田制作所 蓄电装置及充放电控制方法

Also Published As

Publication number Publication date
JPWO2014104280A1 (ja) 2017-01-19

Similar Documents

Publication Publication Date Title
JP5010051B2 (ja) リチウム二次電池における正極活物質の充放電方法、ならびに、リチウム二次電池を備えた充放電システム、電池パック、電池モジュール、電子機器および車両
JP5742990B2 (ja) 充電方法
JP5810320B2 (ja) リチウムイオン電池の充電方法及び電池搭載機器
US8884461B2 (en) Battery system for vehicle and control method thereof
US9966638B2 (en) Manufacturing method for non-aqueous secondary battery
JP6135929B2 (ja) 非水系二次電池の製造方法
JP6375549B2 (ja) 電力供給システム
WO2014162686A1 (fr) Système de batterie
JP2010108873A (ja) リチウムイオン電池とその使用方法
JP6368948B2 (ja) 蓄電システム、移動機構、搬送機構、車両及び自動車
KR20140018543A (ko) 출력 특성이 향상된 혼합 양극활물질 및 이를 포함하는 리튬이차전지
JP5326679B2 (ja) リチウムイオン二次電池の充放電制御方法、二次電池システム、及びハイブリッド自動車
JP6460254B2 (ja) 蓄電パック
US20070111044A1 (en) Hybrid cell and method of driving the same
WO2014104280A1 (fr) Procédé de commande et dispositif de commande pour batterie secondaire
JP2002280076A (ja) リチウム二次電池、リチウム二次電池を用いたモジュール及びこれらを用いた装置
JP2011238568A (ja) リチウムイオン二次電池及び二次電池システム
JP2011108372A (ja) 電源装置用モジュールおよびこれを備える自動車
EP3633784A1 (fr) Unité de stockage électricité et système de stockage d'électricité
US20170250451A1 (en) On-vehicle battery and on-vehicle power supply device
JP2022150874A (ja) 全固体リチウムイオン電池制御システム
CN115039257B (zh) 制造二次电池的方法
WO2021214817A1 (fr) Dispositif de batterie d'accumulateurs et véhicule électrique
KR20230117994A (ko) 리튬 이차전지
JP6327175B2 (ja) 蓄電装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13869404

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014554585

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13869404

Country of ref document: EP

Kind code of ref document: A1