Abstract:
PROBLEM TO BE SOLVED: To provide a power storage module having a low resistance and high safety, in which the workability of connecting a plurality of power storage cells is enhanced.SOLUTION: A power storage module 100 includes a bus bar 20 which can electrically connect and disconnect a first power storage cell 10a and a second power storage cell 10b. The bus bar 20 has a support 21, and a first leg 22 and a second leg 24 forked from the support 21. The first leg 22 has a first terminal surface connected with the terminal board of the first power storage cell 10a, and the second leg 24 has a second terminal surface configured so that the angle for the first terminal surface can be changed. The second terminal surface can be connected with and disconnected from the terminal board of the second power storage cell by changing the angle.
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage device capable of obtaining high safety by effectively suppressing a short circuit between a positive electrode and a negative electrode, excellent in electrolyte retention characteristics, and capable of obtaining large electrostatic capacity and high energy density.SOLUTION: A power storage device includes: an electrode unit including a positive electrode and a negative electrode alternately laminated via a separator, each of the positive electrode and the negative electrode having an active material layer formed in a collector; and an electrolyte. The separator includes an inorganic particle on at least one face of a nonwoven fabric. The nonwoven fabric contains a polyvinylidene fluoride fiber or a polyvinylidene fluoride copolymer fiber, and has a basis weight of 8-12 g/m.
Abstract translation:要解决的问题:提供一种能够通过有效地抑制正极和负极之间的短路而获得高安全性的蓄电装置,电解质保留特性优异,能够获得大的静电容量和高能量密度。 蓄电装置包括:电极单元,其具有通过隔板交替层叠的正极和负极,所述正极和负极中的每一个具有形成在集电体中的活性物质层; 和电解质。 隔膜包括在无纺布的至少一个面上的无机颗粒。 无纺布含有聚偏二氟乙烯纤维或聚偏二氟乙烯共聚物纤维,其单位面积重量为8-12g / m 2。
Abstract:
PROBLEM TO BE SOLVED: To measure electrostatic capacity of capacitor cells by using an equalization control circuit in equalization control of cell voltage without providing an exclusive circuit for measuring the electrostatic capacity.SOLUTION: An electrostatic capacity measurement system includes: equalization control resistors R1-Rn and equalization control switches S1-Sn connected in parallel with a plurality of capacitor cells C1-Cn, respectively; a cell voltage detection circuit for detecting cell voltage of the capacitor cells C1-Cn, respectively; an equalization cell selection circuit for controlling the equalization control switches S1-Sn; and an arithmetic processing unit 16 for controlling the equalization cell selection circuit. The electrostatic capacity measurement system calculates equalization control time on the basis of the measured cell voltage of the capacitor cells C1-Cn, detects measurement start voltage and measurement end voltage of the capacitor cells C1-Cn at the point of time when the equalization control switches become on states and off states, and calculates electrostatic capacity of the capacitor cells C1-Cn on the basis of the equalization control time, the measurement start voltage, and the measurement end voltage.