Abstract:
PROBLEM TO BE SOLVED: To detect the characteristics of a secondary battery, including SOC (state of charge) or the internal resistance of the secondary battery, or to improve estimation accuracy, by controlling the acquisition timing of the pair data of the current and the voltage of the secondary battery.SOLUTION: The secondary battery 10, which is a battery pack, includes a plurality of battery blocks 10-1 to 10-3. Switches S1-S4 are switched on/off, flying capacitors C1, C2 are charged, and then switches S5, S6 are switched on to detect a terminal voltage. A sampling timing of the current of a current detection unit 36 is allowed to lead in time the sampling timing of the voltage of a voltage detection unit 34, and the voltage change after a current in an electric-double layer flows is detected.
Abstract:
PROBLEM TO BE SOLVED: To provide a module extraction device to automatically extract a module in a constraint state.SOLUTION: The extraction device 30 extracts the module 1 alternately aligned with a plate 22 and restrained in a pallet 2, and is movable in approaching direction and separating direction against the plate 22. This includes: chucks 32, 32, ... for the plate capable of changing a pitch between the plates 22, 22 by pinching and moving the plate 22; and the chuck 33 for the module which pinches the module 1, is movable together with movement of the chuck 32 for the plate, and can adjust position of the module 1 by moving the module 1. While pinching the plate 22 by the chuck 32 for the plate, after this widens an inter-plate pitch, by the chuck 33 for the module, this adjusts the position of the module 1 and extracts it while pinching the module 1.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for ultrasonic bonding that performs stable ultrasonic bonding on a workpiece to be bonded which is sequentially conveyed by a conveying device across the whole area in a conveying direction of the workpiece, and to provide a method for manufacturing an electrode for a battery using the apparatus for the ultrasonic bonding. SOLUTION: A strip of a three-dimensional metal porous body 81 as an electrode plate to be bonded and a strip of a conductor as a lead 82 are conveyed on a sponge belt SB which is the convey device in the same direction, and the three-dimensional metal porous body 81 and the lead 82 are ultrasonically bonded while being pressurized by an anvil 60 and an ultrasonic horn 50. A bonding energy used for the ultrasonic bonding, that is, such as pressure given to the anvil 60 and an ultrasonic output given to the ultrasonic horn 50, is made to be variable in accordance with a change in a conveying speed of the three-dimensional metal porous body 81 and the lead 82 due to the sponge belt SB. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To detect a terminal voltage of a battery or the like composing a battery pack in a composition of a low cost and space saving. SOLUTION: Flying capacitors C1, C2 are connected through switches S1-S4 to blocks B1-B3 composing the battery pack. A voltage measuring part 14 and four Zener diodes ZD1-ZD4 are connected to both ends of the flying capacitors C1, C2. A reference voltage source is connected to a connection point of the Zener diodes ZD2, ZD3. Excess voltage is prevented by the Zener diodes ZD1-ZD4 to detect voltages of the blocks B1-B3. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent variations in a state of charge of a battery pack. SOLUTION: The battery pack 10 is constituted of a plurality of blocks B1 to B6. Each of slave units M1 to M6 is provided for each of the blocks to detect a terminal voltage and supply the detected terminal voltage to a master unit 26. Variations are caused in a state of charge among the blocks B1 to B6 for variations in current consumption of the respective slave units M1 to M6. The master unit 26 makes up an operation clock signal for each of the slave units M1 to M6 from a high frequency signal and a low frequency signal. Variations in the charge state among the blocks are prevented by controlling the occurrence ratio of the high frequency signal to the low frequency signal for each of the slave units. COPYRIGHT: (C)2011,JPO&INPIT