BATTERY CONTROL DEVICE, CONTROL METHOD, CONTROL SYSTEM AND ELECTRIC VEHICLE

• US 20150295448A1
• Filed: 10/07/2013
• Published: 10/15/2015
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: UMETSU, Koji, SUGENO, Naoyuki, WATANABE, Kohki, TAKIZAWA, Shuichi, SATO, Kenji
• Granted Patent: US 10,056,773 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/441 Speed
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 2240/662 Temperature
• CPC Class Codes: B60L 2240/80 Time limits
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 50/62 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
• CPC Class Codes: B60L 50/64 : Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 53/14 : Conductive energy transfer
• CPC Class Codes: B60L 53/65 : involving identification of vehicles or their battery types
• CPC Class Codes: B60L 58/12 : responding to state of charge [SoC]
• CPC Class Codes: B60L 58/15 : Preventing overcharging
• CPC Class Codes: B60L 58/16 : responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: B60L 58/21 : having the same nominal voltage
• CPC Class Codes: B60L 58/24 : for controlling the temperature of batteries
• CPC Class Codes: B60L 58/27 : by heating
• CPC Class Codes: B60L 58/32 : for controlling the temperature of fuel cells, e.g. by controlling the electric load
• CPC Class Codes: B60L 7/14 : for vehicles propelled by ac motors
• CPC Class Codes: H01M 10/4207 : for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/425 : Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/4257 : Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/443 : in response to temperature
• CPC Class Codes: H01M 2010/4271 : Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/00 : Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0016 : using shunting, discharge or bypass circuits
• CPC Class Codes: H02J 7/0047 : with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 : Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/007184 : in response to battery voltage gradient
• CPC Class Codes: H02J 7/007194 : of the battery
• CPC Class Codes: H02J 7/35 : with light sensitive cells
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y02T 90/40 : Application of hydrogen technology to transportation, e.g. using fuel cells
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A battery package including a power storage portion; and a control device, where the control device determines if a first temperature of the power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharges the power storage portion at a first discharge rate.

Claims

1. A battery package comprising:

a power storage portion; and

a control device, wherein the control device determines if a first temperature of the power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharges the power storage portion at a first discharge rate.

2. The battery package of claim 1, wherein the control device comprises a recovery mode comprising the steps of the determining and the discharging, and the recovery mode occurs after a deterioration is detected in the power storage portion.

3. The battery package of claim 2, wherein a capacity of the battery package after the recovery mode remains within about 500 mAh of a capacity of the battery package before the recovery mode between a sequential set of 250-300 cycles and when the battery package is at temperatures below about −

10 degrees Celsius for a sequential set of 0-300 cycles that includes the set of 250-300 cycles.

4. The battery package of claim 1, wherein if the first temperature is higher than the predetermined temperature due to a warming device supplying heat to the power storage portion, the discharge of the power storage portion occurs at a second discharge rate.

5. The battery package of claim 1, wherein the first discharge rate is a predetermined rate.

6. The battery package of claim 1, wherein the first discharge rate is lower than about 0.2 C.

7. The battery package of claim 4, wherein the second discharge rate is between about 0.2 C and about 0.1 C.

8. The battery package of claim 1, wherein the first discharge rate is about 0.1 C.

9. The battery package of claim 1, wherein:

after the discharging the power storage portion at the first discharge rate, a warming device supplies heat to the power storage portion when the power storage portion is at a lower temperature than the predetermined temperature,

the control device determines if a second temperature of the power storage portion is higher than the predetermined temperature, and

if the second temperature is higher than the predetermined temperature, the control device discharges the power storage portion at a second discharge rate.

10. The battery package of claim 9, wherein the second discharge rate is the same as the first discharge rate.

11. The battery package of claim 9, wherein the second discharge rate is different than the first discharge rate.

12. The battery package of claim 9, wherein the second discharge rate is lower than about 0.2 C.

13. The battery package of claim 9, wherein the second discharge rate is about 0.1 C.

14. The battery package of claim 1, wherein the power storage portion comprises a set of power storage submodules.

15. The battery package of claim 14, wherein the control device determines if any of an initial temperature of each one of the power storage submodules is higher than the predetermined temperature, and if any of the initial temperatures is higher than the predetermined temperature, the control device discharges the power storage portion at the first discharge rate.

16. The battery package of claim 15, wherein the control device discharges the power storage submodules using at least two different discharge rates for at least two different power storage submodules.

17. A battery adapted for use with an electronic device, wherein the battery comprises the battery package of claim 1.

18. The battery of claim 17, wherein the electronic device is a vehicle.

21. A vehicle comprising the battery package of claim 1.

22. The battery package of claim 1, wherein the control device performs, depending on a temperature of the power storage portion, at least one of:

recharging the power storage portion with a first recharge rate;

recharging the power storage portion with a second recharge rate that is lower than the first recharge rate; and

warming the power storage portion after the discharging.

23. The battery package of claim 22, wherein the control device performs recharging with the second recharge rate when the temperature of the power storage portion is higher than an initial temperature and lower than a secondary temperature;

performs recharging with the first recharge rate when the temperature of the power storage portion is higher than the secondary temperature; and

performs warming of the power storage portion in a case where the temperature of the power storage portion is lower than the initial temperature.

24. The battery package of claim 22, wherein the power storage portion is recharged until the voltage of the power storage portion becomes a full recharge voltage when the recharging is with the first recharge rate;

and the power storage portion is recharged until the voltage of the power storage portion becomes a voltage lower than the full recharge voltage when the recharging is with the second recharge rate.

25. The battery package of claim 22, wherein the initial temperature is about −

10 degrees Celsius, and the secondary temperature is about 0 degrees Celsius.

19. A battery package adapted for use with a power storage device, comprising:

a power storage portion; and

a control device, wherein the control device functions to determine if a first temperature of a power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharge the power storage portion at a predetermined first discharge rate.

20. A method of controlling power storage in a battery package, comprising:

determining if a first temperature of the power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharging the power storage portion at a predetermined first discharge rate.