POWER STORAGE DEVICE, POWER STORAGE METHOD, AND PROGRAM

• US 20120249088A1
• Filed: 03/20/2012
• Published: 10/04/2012
• Est. Priority Date: 03/30/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Abe, Yuuichi
• Granted Patent: US 9,193,276 B2
• Time in Patent Office: Days
• US Class Current: 320/164
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2260/58 Departure time prediction
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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 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: Y04S 10/126 the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Abstract

A power storage device including: a secondary battery; an acquisition unit that acquires charging period information for charging the secondary battery; and a charge control unit that calculates a charging power on the basis of the charging period information and controls charging power used for charging the secondary battery so that of the charging power is equal to the calculated charging power.

Claims

1. A power storage device comprising:

a secondary battery;

an acquisition unit that acquires charging period information for charging the secondary battery; and

a charge control unit that calculates a charging power on the basis of the charging period information and controls charging power used for charging the secondary battery so that the charging power is equal to the calculated charging power.

2. The power storage device according to claim 1, further comprising

a detection unit that detects remaining amount of electric energy of the secondary battery,

wherein the charge control unit calculates a charging power value on the basis of the difference between an amount of target charge electric energy and the remaining amount of electric energy of the secondary battery and the charging period information.

3. The power storage device according to claim 2,

wherein the charge control unit calculates a charging power necessary for making up the difference.

4. The power storage device according to claim 1, further comprising

a memory unit that stores user'"'"'s schedule information,

wherein the acquisition unit calculates the charging period information on the basis of the schedule stored in the memory unit.

5. The power storage device according to claim 1, further comprising:

a memory unit that stores a usage history of the power storage device; and

a prediction unit that predicts a usage start time when a user starts using the power storage device on the basis of the usage history stored by the memory unit,

wherein the acquisition unit calculates the charging period information on the basis of the usage start time predicted by the prediction unit.

6. The power storage device according to claim 1,

wherein the acquisition unit acquires charging period information input by a user.

7. The power storage device according to claim 1,

wherein the charge control unit selects a charging method on the basis of the charging period information and the charging power.

8. The power storage device according to claim 1,

wherein the acquisition unit receives charging period information that is calculated by a charging period control device on the basis of user'"'"'s schedule information.

9. A power storage method comprising:

acquiring charging period information for charging a secondary battery;

calculating a charging power on the basis of the charging period information; and

controlling charging power used for charging the secondary battery so that the charging power is equal to the calculated charging power.

10. A program that causes a computer to execute the processes of:

acquiring charging period information for charging a secondary battery;

calculating a charging power on the basis of the charging period information; and

controlling charging power used for charging the secondary battery so that the charging power is equal to the calculated charging power.