STORAGE BATTERY DEVICE

• US 20150171639A1
• Filed: 02/25/2015
• Published: 06/18/2015
• Est. Priority Date: 01/24/2013
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: SAEKI, Takeshi, TAKEMORI, Yoshiharu, ENOMOTO, Daichi
• Granted Patent: US 10,181,741 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01K 13/00 Thermometers specially adapted for specific purposes
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/443 in response to temperature
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• 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 60/10 Energy storage using batteries

Abstract

A storage battery device according to the present disclosure includes a storage unit accumulating charge, an attachment unit attachable to an electronic device, and a controller charging the storage unit by a first current value when the storage battery device is attached to the electronic device via the attachment unit, and charging the storage unit by a second current value lower than the first current value when the storage battery device is not attached to the electronic device via the attachment unit.

Claims

1. A storage battery device comprising:

a storage unit accumulating charge;

an attachment unit attachable to an electronic device; and

a controller charging the storage unit by a first current value when the storage battery device is attached to the electronic device via the attachment unit, and charging the storage unit by a second current value lower than the first current value when the storage battery device is not attached to the electronic device via the attachment unit.

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

a detector detecting a temperature of the storage unit,

wherein when the temperature is higher than a predetermined temperature, the controller charges the storage unit by a current value lower than the first current value or does not charge the storage unit regardless of whether or not the storage battery device is attached to the electronic device via the attachment unit.

3. The storage battery device according to claim 1, wherein

the controller charges the storage unit by a constant current value in a constant current (CC) charging period corresponding to a first period in a period for charging the storage unit, and charges the storage unit by a variable current value in such a manner as to keep a voltage of the storage unit constant in a constant voltage (CV) charging period corresponding to a second period different from the first period, and

a part of the period for charging the storage unit corresponds to a whole or a part of the constant current (CC) charging period.

4. The storage battery device according to claim 1, wherein the controller charges the storage unit by the first current value or the second current value in a part of the period for charging the storage unit.