摘要:
A grid plate for a lead acid storage battery including a frame section having a pair of quadrangular contour shape, and longitudinal and lateral grid strands forming a frame section grid. The longitudinal and lateral grid strands have thick strands of smaller thickness than the frame section, and thin strands of smaller width and thickness than the thick strands. Strands adjacent to the thick strands are thin strands, and space allows flow of active material to sides of the thick strands. Ends of the thick strands in the thickness direction are positioned further inward from end faces of the frame section in the thickness direction, and the end portions of one end side of the thin strands in the thickness direction are positioned offset to one end side of the thick strands in the thickness direction, and active material is packed into the reverse surface side of the grid plate.
摘要:
There is provided a method for operating a lead acid storage battery in order to compensate for fluctuations in the amount of power generated by a solar power generation apparatus, a wind power generation apparatus, or another natural energy power generation device, the lead acid storage battery being charged by a power generation device and discharged to a load. The state of charge of the lead acid storage battery is maintained in a range of 30 to 90% where the fully charged state of the lead acid storage battery is 100%; and the lead acid storage battery is charged and discharged while the battery voltage is kept in a specified range of 1.80 to 2.42 V per cell to extend the service life of the battery. A reference temperature of 25° C. is established, and when the ambient temperature has risen above or fallen below the reference temperature, the upper and lower limit values of a specified range are corrected within a range of −4 mV/° C. to −6 mV/° C. per cell according to the amount by which the temperature has increased or decreased so that a corrected voltage range is obtained. The storage battery is charged and discharged while the battery voltage is kept in the corrected voltage range, and the battery is operated.
摘要:
There is provided a method for operating a lead acid storage battery in order to compensate for fluctuations in the amount of power generated by a solar power generation apparatus, a wind power generation apparatus, or another natural energy power generation device, the lead acid storage battery being charged by a power generation device and discharged to a load. The state of charge of the lead acid storage battery is maintained in a range of 30 to 90% where the fully charged state of the lead acid storage battery is 100%; and the lead acid storage battery is charged and discharged while the battery voltage is kept in a specified range of 1.80 to 2.42 V per cell to extend the service life of the battery. A reference temperature of 25° C. is established, and when the ambient temperature has risen above or fallen below the reference temperature, the upper and lower limit values of a specified range are corrected within a range of −4 mV/° C. to −6 mV/° C. per cell according to the amount by which the temperature has increased or decreased so that a corrected voltage range is obtained. The storage battery is charged and discharged while the battery voltage is kept in the corrected voltage range, and the battery is operated.
摘要:
A grid plate for a lead acid storage battery comprising a frame section having a pair of quadrangular contour shape, and longitudinal grid strands and lateral grid strands that form a grid inside the frame section. The longitudinal grid strands and lateral grid strands are composed of thick strands of smaller thickness than the frame section, and thin strands of smaller width and thickness than the thick strands. The thick strands and thin strands are arranged so that the strands adjacent to the thick strands are thin strands, and space is reliably provided for facilitating the flow of active material to the sides of the thick strands. The two ends of the thick strands in the thickness direction are positioned further inward from the two end faces of the frame section in the thickness direction, and the end portions of one end side of the thin strands in the thickness direction are positioned in positions offset to one end side of the thick strands in the thickness direction, whereby the active material is readily packed into the reverse surface side of the grid plate.
摘要:
The life of a lead acid storage batttery is extended by changing an over-frequency equalized charge interval performed on a lead acid storage batttery, in accordance with a transition situation of a state of charge (SOC) of the lead acid storage batttery. The lead acid storage batttery is also made to be advantageous in terms of cost by reducing the equalized charge with a low degree of urgency to reduce the power and cost for equalized charge, and by reducing the number of stops of a natural energy storage system. A lead acid storage batttery and a lead acid storage batttery system whose operational management can be easily performed are achieved by a method in which the future timing when the equalized charge is performed can be grasped by people operating the lead acid storage batttery. The lead acid storage batttery and the lead acid storage batttery system include: a storage batttery state measurement unit; an SOC model; an SOC estimation unit configured to estimate an SOC from the information measured by the storage batttery state measurement unit and the information from the SOC model; an SOC transition DB configure to record an SOC transition situation of the lead acid storage batttery; an SOC transition history management unit configured to record, in the SOC transition DB, an estimated SOC value and to check an SOC transition situation; a degradation model of the lead acid storage batttery; an equalized charge optimal planning unit configured to plan an optimal method of performing the equalized charge based on the information on the SOC transition situation from the SOC transition history management unit and the information from the degradation model; an SOC transition information-equalized charge information output unit; and an equalized charge control unit configured to perform the equalized charge on the lead acid storage batttery in accordance with the plan determined by the equalized charge optimal planning unit.
摘要:
The life of a lead acid storage battery is extended by changing an over-frequency equalized charge interval performed on a lead acid storage battery, in accordance with a transition situation of a state of charge (SOC) of the lead acid storage battery. The lead acid storage battery is also made to be advantageous in terms of cost by reducing the equalized charge with a low degree of urgency to reduce the power and cost for equalized charge, and by reducing the number of stops of a natural energy storage system. A lead acid storage battery and a lead acid storage battery system whose operational management can be easily performed are achieved by a method in which the future timing when the equalized charge is performed can be grasped by people operating the lead acid storage battery.
摘要:
A power system where energy generated at a deceleration time of a running vehicle such as an automobile can be accepted as regenerative energy sufficiently and safely is provided. In a power system 10, a non-aqueous solution system secondary battery group 1 where 10 to 11 lithium ion secondary battery cells are connected in series and an aqueous solution system secondary battery group 2 where 18 control valve type lead-acid battery cells are connected in series are connected in parallel. The battery capacity of the non-aqueous solution system secondary battery group 1 is smaller than that of the aqueous solution system secondary battery group 2. The non-aqueous solution system secondary battery group 1 and the aqueous solution system secondary battery group 2 are charged at a current value of 7C or less from a motor generator 3, and the ratio of the charged current value of the aqueous solution system secondary battery group 2 to the charged current value of the non-aqueous solution system secondary battery group 1 is 0.05 to 1.00.