Charging control method for secondary battery and control device
First Claim
1. A method for controlling charging of a secondary battery, the method comprising:
- calculating an amount of heat generated by a secondary battery based on an inter-electrode-plate voltage, an internal resistance, a current value, and charging efficiency of the secondary battery;
calculating an amount of allowable heat generated by the secondary battery based on a cooling ability of a cooling unit which cools the secondary battery and a temperature of the secondary battery; and
limiting, by using a charging control device, charging power of the secondary battery when the amount of generated heat is greater than the amount of allowable generated heat,wherein the charging efficiency of the secondary battery includes a ratio of an amount of electricity actually stored with respect to a charging electric charge amount.
1 Assignment
0 Petitions
Accused Products
Abstract
The disclosed device for controlling charging of a secondary battery includes a step for calculating an amount of heat generated by a secondary battery on the basis of an inter-electrode-plate voltage, internal resistance, a current value, and charging efficiency; a step for calculating an amount of allowable generated heat of the secondary battery on the basis of a temperature of the secondary battery and the cooling ability of a cooling means that cools the secondary battery; and a step for limiting the charging power of the secondary battery when the aforementioned amount of heat generated is greater than the aforementioned amount of allowable heat generation.
-
Citations
12 Claims
-
1. A method for controlling charging of a secondary battery, the method comprising:
-
calculating an amount of heat generated by a secondary battery based on an inter-electrode-plate voltage, an internal resistance, a current value, and charging efficiency of the secondary battery; calculating an amount of allowable heat generated by the secondary battery based on a cooling ability of a cooling unit which cools the secondary battery and a temperature of the secondary battery; and limiting, by using a charging control device, charging power of the secondary battery when the amount of generated heat is greater than the amount of allowable generated heat, wherein the charging efficiency of the secondary battery includes a ratio of an amount of electricity actually stored with respect to a charging electric charge amount. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A device for controlling charging of a secondary battery, the device comprising:
-
a unit that calculates an amount of heat generated by a secondary battery based on an inter-electrode-plate voltage, an internal resistance, a current value, and charging efficiency of the secondary battery; a unit that calculates an amount of allowable heat generated by the secondary battery based on a cooling ability of a cooling unit that cools the secondary battery and a temperature of the secondary battery; and a unit that limits charging power of the secondary battery when the amount of generated heat is greater than the amount of allowable generated heat, wherein the charging efficiency of the secondary battery includes a ratio of an amount of electricity actually stored with respect to a charging electric charge amount. - View Dependent Claims (8, 9, 10, 11, 12)
-
Specification